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metabolites</title> <meta name="description" content="Search results for: methyl cycle metabolites"> <meta name="keywords" content="methyl cycle metabolites"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="methyl cycle metabolites"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 2915</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: methyl cycle metabolites</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2915</span> The Effects of Myelin Basic Protein Charge Isomers on the Methyl Cycle Metabolites in Glial Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elene%20Zhuravliova">Elene Zhuravliova</a>, <a href="https://publications.waset.org/abstracts/search?q=Tamar%20Barbakadze"> Tamar Barbakadze</a>, <a href="https://publications.waset.org/abstracts/search?q=Irina%20Kalandadze"> Irina Kalandadze</a>, <a href="https://publications.waset.org/abstracts/search?q=Elnari%20Zaalishvili"> Elnari Zaalishvili</a>, <a href="https://publications.waset.org/abstracts/search?q=Lali%20%20Shanshiashvili"> Lali Shanshiashvili</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Mikeladze"> David Mikeladze</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Multiple sclerosis (MS) is an inflammatory, neurodegenerative disease, which is accompanied by demyelination and autoimmune response to myelin proteins. Among post-translational modifications, which mediate the modulation of inflammatory pathways during MS, methylation is the main one. The methylation of DNA, also amino acids lysine and arginine, occurs in the cell. It was found that decreased trans-methylation is associated with neuroinflammatory diseases. Therefore, abnormal regulation of the methyl cycle could induce demyelination through the action on PAD (peptidyl-arginine-deiminase) gene promoter. PAD takes part in protein citrullination and targets myelin basic protein (MBP), which is affected during demyelination. To determine whether MBP charge isomers are changing the methyl cycle, we have estimated the concentrations of methyl cycle metabolites in MBP-activated primary astrocytes and oligodendrocytes. For this purpose, the action of the citrullinated MBP- C8 and the most cationic MBP-C1 isomers on the primary cells were investigated. Methods: Primary oligodendrocyte and astrocyte cell cultures were prepared from whole brains of 2-day-old Wistar rats. The methyl cycle metabolites, including homocysteine, S-adenosylmethionine (SAM), and S-adenosylhomocysteine (SAH), were estimated by HPLC analysis using fluorescence detection and prior derivatization. Results: We found that the action of MBP-C8 and MBP-C1 induces a decrease in the concentration of both methyl cycle metabolites, S-adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH), in astrocytes compared to the control cells. As for oligodendrocytes, the concentration of SAM was increased by the addition of MBP-C1, while MBP-C8 has no significant effect. As for SAH, its concentration was increased compared to the control cells by the action of both MBP-C1 and MBP-C8. A significant increase in homocysteine concentration was observed by the action of the MBP-C8 isomer in both oligodendrocytes and astrocytes. Conclusion: These data suggest that MBP charge isomers change the concentration of methyl cycle metabolites. MBP-C8 citrullinated isomer causes elevation of homocysteine in astrocytes and oligodendrocytes, which may be the reason for decreased astrocyte proliferation and increased oligodendrocyte cell death which takes place in neurodegenerative processes. Elevated homocysteine levels and subsequent abnormal regulation of methyl cycles in oligodendrocytes possibly change the methylation of DNA that activates PAD gene promoter and induces the synthesis of PAD, which in turn provokes the process of citrullination, which is the accompanying process of demyelination. Acknowledgment: This research was supported by the SRNSF Georgia RF17_534 grant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=myelin%20basic%20protein" title="myelin basic protein">myelin basic protein</a>, <a href="https://publications.waset.org/abstracts/search?q=astrocytes" title=" astrocytes"> astrocytes</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20cycle%20metabolites" title=" methyl cycle metabolites"> methyl cycle metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=homocysteine" title=" homocysteine"> homocysteine</a>, <a href="https://publications.waset.org/abstracts/search?q=oligodendrocytes" title=" oligodendrocytes"> oligodendrocytes</a> </p> <a href="https://publications.waset.org/abstracts/137071/the-effects-of-myelin-basic-protein-charge-isomers-on-the-methyl-cycle-metabolites-in-glial-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137071.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">156</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2914</span> Parabens, Paraben Metabolites and Triclocarban in Sediment Samples from the Trondheim Fjord, Norway</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kristine%20Vike-Jonas">Kristine Vike-Jonas</a>, <a href="https://publications.waset.org/abstracts/search?q=Susana%20V.%20Gonzalez"> Susana V. Gonzalez</a>, <a href="https://publications.waset.org/abstracts/search?q=Olav%20L.%20Bakkerud"> Olav L. Bakkerud</a>, <a href="https://publications.waset.org/abstracts/search?q=Karoline%20S.%20Gjelstad"> Karoline S. Gjelstad</a>, <a href="https://publications.waset.org/abstracts/search?q=Shazia%20N.%20Aslam"> Shazia N. Aslam</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%98yvind%20Mikkelsen"> Øyvind Mikkelsen</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandros%20Asimakopoulos"> Alexandros Asimakopoulos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> P-hydrobenzoic acid esters (parabens), paraben metabolites, and triclocarban (TCC) are a group of synthetic antimicrobials classified as endocrine disrupting chemicals (EDCs) and emerging pollutants. The aim of this study was to investigate the levels of these compounds in sediment near the effluent of a wastewater treatment plant (WWTP) in the Trondheim Fjord, Norway. Paraben, paraben metabolites, and TCC are high volume production chemicals that are found in a range of consumer products, especially pharmaceuticals and personal care products (PCPs). In this study, six parabens (methyl paraben; MeP, ethyl paraben; EtP, propyl paraben; PrP, butyl paraben; BuP, benzyl paraben; BezP, heptyl paraben; HeP), four paraben metabolites (4-hydroxybenzoic acid; 4-HB, 3,4-dihydroxybenzoic acid; 3,4-DHB, methyl protocatechuic acid; OH-MeP, ethyl protocatechuic acid; OH-EtP) and TCC were determined by ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) in 64 sediment samples from 10 different locations outside Trondheim, Norway. Of these 11 target analytes, four were detected in 40 % or more of the samples. The sum of six parabens (∑Parabens), four paraben metabolites (∑Metabolites) and TCC in sediment ranged from 4.88 to 11.56 (mean 6.81) ng/g, 52.16 to 368.28 (mean 93.89) ng/g and 0.53 to 3.65 (mean 1.50) ng/g dry sediment, respectively. Pearson correlation coefficients indicated that TCC was positively correlated with OH-MeP, but negatively correlated with 4-HB. To the best of the author’s knowledge, this is the first time parabens, paraben metabolites and TCC have been reported in the Trondheim Fjord. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=parabens" title="parabens">parabens</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20chromatography" title=" liquid chromatography"> liquid chromatography</a>, <a href="https://publications.waset.org/abstracts/search?q=sediment" title=" sediment"> sediment</a>, <a href="https://publications.waset.org/abstracts/search?q=tandem%20mass%20spectrometry" title=" tandem mass spectrometry"> tandem mass spectrometry</a> </p> <a href="https://publications.waset.org/abstracts/113904/parabens-paraben-metabolites-and-triclocarban-in-sediment-samples-from-the-trondheim-fjord-norway" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113904.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">129</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2913</span> Cytotoxic Activity Of Major Iridoids From Barleria Trispinosa (Forssk.) Vahl. Growing In Saudi Arabia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamza%20Assiry">Hamza Assiry</a>, <a href="https://publications.waset.org/abstracts/search?q=Gamal%20A.%20Mohamed"> Gamal A. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabrin%20R.%20M.%20Ibrahim"> Sabrin R. M. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossam%20M.%20Abdallah"> Hossam M. Abdallah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chemical investigation of the aerial parts of Barleria trispinosa(Forssk.) Vahl. resulted in isolation of four major iridoids that were identified as 6,8-O,O-diacetylshanhiside methyl ester (acetyl barlerin) (1), 8-O-acetylshanzhiside methyl ester (barlerin) (2), shanzhiside methyl ester (3), and 6- ⍺ -L-rhamnopyranosyl-8-O-acetylshanzihiside methyl ester (4). The isolated compounds were confirmed by detailed one and two-dimensional NMR. Isolated compounds were tested for their cytotoxic activity on breast cancer (MCF-7, MDA-MB-231) and colon cancer (LS174T) cell linesusing sulphorhodamine B (SRB) assay. It is noteworthy that compound 1 demonstrated a significant cytotoxic potential towards MDA-MB-231 cell line with IC5016.7 ± 2.7µg / mL compared to doxorubicin whereas compounds 2, showed moderate cytotoxic potential with IC5021.2 ± 1.9µg / mL on MCF-7. The other compounds showed moderate activity on the tested cell lines. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acanthaceae" title="acanthaceae">acanthaceae</a>, <a href="https://publications.waset.org/abstracts/search?q=cytotoxicity" title=" cytotoxicity"> cytotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=barleria%20trispinosa" title=" barleria trispinosa"> barleria trispinosa</a> </p> <a href="https://publications.waset.org/abstracts/147131/cytotoxic-activity-of-major-iridoids-from-barleria-trispinosa-forssk-vahl-growing-in-saudi-arabia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147131.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">146</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2912</span> Identification and Characterization of in Vivo, in Vitro and Reactive Metabolites of Zorifertinib Using Liquid Chromatography Lon Trap Mass Spectrometry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adnan%20A.%20Kadi">Adnan A. Kadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasser%20S.%20Al-Shakliah"> Nasser S. Al-Shakliah</a>, <a href="https://publications.waset.org/abstracts/search?q=Haitham%20Al-Rabiah"> Haitham Al-Rabiah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Zorifertinib is a novel, potent, oral, a small molecule used to treat non-small cell lung cancer (NSCLC). zorifertinib is an Epidermal Growth Factor Receptor (EGFR) inhibitor and has good blood–brain barrier permeability for (NSCLC) patients with EGFR mutations. zorifertinibis currently at phase II/III clinical trials. The current research reports the characterization and identification of in vitro, in vivo and reactive intermediates of zorifertinib. Prediction of susceptible sites of metabolism and reactivity pathways (cyanide and GSH) of zorifertinib were performed by the Xenosite web predictor tool. In-vitro metabolites of zorifertinib were performed by incubation with rat liver microsomes (RLMs) and isolated perfused rat liver hepatocytes. Extraction of zorifertinib and it's in vitro metabolites from the incubation mixtures were done by protein precipitation. In vivo metabolism was done by giving a single oral dose of zorifertinib(10 mg/Kg) to Sprague Dawely rats in metabolic cages by using oral gavage. Urine was gathered and filtered at specific time intervals (0, 6, 12, 18, 24, 48, 72,96and 120 hr) from zorifertinib dosing. A similar volume of ACN was added to each collected urine sample. Both layers (organic and aqueous) were injected into liquid chromatography ion trap mass spectrometry(LC-IT-MS) to detect vivozorifertinib metabolites. N-methyl piperizine ring and quinazoline group of zorifertinib undergoe metabolism forming iminium and electro deficient conjugated system respectively, which are very reactive toward nucleophilic macromolecules. Incubation of zorifertinib with RLMs in the presence of 1.0 mM KCN and 1.0 Mm glutathione were made to check reactive metabolites as it is often responsible for toxicities associated with this drug. For in vitro metabolites there were nine in vitro phase I metabolites, four in vitro phase II metabolites, eleven reactive metabolites(three cyano adducts, five GSH conjugates metabolites, and three methoxy metabolites of zorifertinib were detected by LC-IT-MS. For in vivo metabolites, there were eight in vivo phase I, tenin vivo phase II metabolitesofzorifertinib were detected by LC-IT-MS. In vitro and in vivo phase I metabolic pathways wereN- demthylation, O-demethylation, hydroxylation, reduction, defluorination, and dechlorination. In vivo phase II metabolic reaction was direct conjugation of zorifertinib with glucuronic acid and sulphate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=in%20vivo%20metabolites" title="in vivo metabolites">in vivo metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=in%20vitro%20metabolites" title=" in vitro metabolites"> in vitro metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=cyano%20adducts" title=" cyano adducts"> cyano adducts</a>, <a href="https://publications.waset.org/abstracts/search?q=GSH%20conjugate" title="GSH conjugate">GSH conjugate</a> </p> <a href="https://publications.waset.org/abstracts/140683/identification-and-characterization-of-in-vivo-in-vitro-and-reactive-metabolites-of-zorifertinib-using-liquid-chromatography-lon-trap-mass-spectrometry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140683.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">198</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2911</span> Gut Metabolite Profiling of the Ethnic Groups from Assam, India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Madhusmita%20Dehingia">Madhusmita Dehingia</a>, <a href="https://publications.waset.org/abstracts/search?q=Supriyo%20Sen"> Supriyo Sen</a>, <a href="https://publications.waset.org/abstracts/search?q=Bhuwan%20Bhaskar"> Bhuwan Bhaskar</a>, <a href="https://publications.waset.org/abstracts/search?q=Tulsi%20Joishy"> Tulsi Joishy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mojibur%20R.%20Khan"> Mojibur R. Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Human gut microbes and their metabolites are important for maintaining homeostasis in the gut and are responsible for many metabolic and immune mediated diseases. In the present study, we determined the profiles of the gut metabolites of five different ethnic groups (Bodo, Tai-Phake, Karbi, Tea tribe and Tai-Aiton) of Assam. Fecal metabolite profiling of the 39 individuals belonging to the ethnic groups was carried out using Gas chromatography – Mass spectrometry (GC-MS), and comparison was performed among the tribes for common and unique metabolites produced within their gut. Partial Least Squares Discriminant Analysis (PLS-DA) of the metabolites suggested that the individuals grouped according to their ethnicity. Among the 66 abundant metabolites, 12 metabolites were found to be common among the five ethnic groups. Additionally, ethnicity wise some unique metabolites were also detected. For example, the tea tribe of Assam contained the tea components, Aniline and Benzoate more in their gut in comparison to others. Metabolites of microbial origin were also correlated with the already published metagenomic data of the same ethnic group and functional analysis were carried out based on human metabolome database. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ethnicity" title="ethnicity">ethnicity</a>, <a href="https://publications.waset.org/abstracts/search?q=gut%20microbiota" title=" gut microbiota"> gut microbiota</a>, <a href="https://publications.waset.org/abstracts/search?q=GC-MS" title=" GC-MS"> GC-MS</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a> </p> <a href="https://publications.waset.org/abstracts/60440/gut-metabolite-profiling-of-the-ethnic-groups-from-assam-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60440.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">422</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2910</span> Implementation of Metabolomics in Conjunction with Chemometrics for the Dentification of the Differential Chemical Markers of Different Grades of Sri Lankan White, Green and Black Tea: Camellia Sinenesis L.</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dina%20A.%20Selim">Dina A. Selim</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20Shawky"> Eman Shawky</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20M.%20Abu%20El-Khair"> Rasha M. Abu El-Khair</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the current study, UPLC-MS/MS combined to chemometrics were applied on seven Sri Lankan tea grades; Orange Pekoe, Flowery Pekoe, Broken Orange Pekoe Fannings, Broken Orange Pekoe black tea, green tea, silver tips and golden tips white tea grades for their comprehensive metabolic profiling. Certain metabolites, namely, Theasensinin C and E, theaflavin and theacitrin appeared to be the main chemical markers of black tea type, catechin, epicatechin, epigallocatechin, methyl epigallocatechin were the main discriminatory markers of green tea type, while theanine, oolongotheanine and quercetin glycosides were the main chemical markers of white tea type. Theogalloflavin, epigallocatechin and flavonoid glycosides were the main down-accumulated metabolites while theaflavin gallate, and N-ethyl pyrrolidinone epicatechin were the chief up- accumulated metabolites between whole and broken black tea leave grades while puerin A and C and gallic acid was the main down- accumulated metabolites and N-ethyl pyrrolidinone epicatechin gallate was the main up-accumulated one between broken and fanning black tea grades. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tea%20grading" title="tea grading">tea grading</a>, <a href="https://publications.waset.org/abstracts/search?q=Sri%20Lankan%20tea" title=" Sri Lankan tea"> Sri Lankan tea</a>, <a href="https://publications.waset.org/abstracts/search?q=chemometrics" title=" chemometrics"> chemometrics</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolomics" title=" metabolomics"> metabolomics</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20markers" title=" chemical markers"> chemical markers</a> </p> <a href="https://publications.waset.org/abstracts/147524/implementation-of-metabolomics-in-conjunction-with-chemometrics-for-the-dentification-of-the-differential-chemical-markers-of-different-grades-of-sri-lankan-white-green-and-black-tea-camellia-sinenesis-l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147524.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">139</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2909</span> Methyl Red Dye Adsorption On PMMA/GO and PMMA/GO-Fe3O4 Nanocomposites: Equilibrium Isotherm Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20Rajabi">Mostafa Rajabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazem%20Mahanpoor"> Kazem Mahanpoor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Performances of the methyl red (MR) dye adsorption on poly(methyl methacrylate)/graphene oxide (PMMA/GO) and poly(methyl methacrylate)/graphene oxide-Fe3O4 (PMMA/GO-Fe3O4) nanocomposites as adsorbents were investigated. Our results showed that for adsorption of MR dye on PMMA/GO-Fe3O4 and PMMA/GO nanocomposites, 80 minutes, 298 K, and pH 2 were the best contact time, temperature and pH value for process, respectively, because the optimum adsorption of the MR dye with both nanocomposite adsorbents were observed in these values of the parameters. The equilibrium study results showed that PMMA/GO-Fe3O4 and PMMA/GO were suitable adsorbents for MR dye removing and were best in agreement with the Langmuir isotherm model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adsorption" title="adsorption">adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=isotherm" title=" isotherm"> isotherm</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20methacrylate" title=" methyl methacrylate"> methyl methacrylate</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20red" title=" methyl red"> methyl red</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposite" title=" nanocomposite"> nanocomposite</a>, <a href="https://publications.waset.org/abstracts/search?q=nano%20magnetic%20Fe3O4" title=" nano magnetic Fe3O4"> nano magnetic Fe3O4</a> </p> <a href="https://publications.waset.org/abstracts/140772/methyl-red-dye-adsorption-on-pmmago-and-pmmago-fe3o4-nanocomposites-equilibrium-isotherm-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140772.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">187</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2908</span> Process for Production of Added-Value Water–Extract from Liquid Biomass </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lozano%20Paul">Lozano Paul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Coupled Membrane Separation Technology (CMST), including Cross Flow Microfiltration (CFM) and Reverse Osmosis (RO), are used to concentrate microalgae biomass or/and to extract and concentrate water-soluble metabolites produced during micro-algae production cycle, as well as water recycling. Micro-algae biomass was produced using different feeding mixtures of ingredients: pure chemical origin compounds and natural/ecological water-extracted components from available local plants. Micro-algae was grown either in conventional plastic bags (100L/unit) or in small-scale innovative bioreactors (75L). Biomass was concentrated as CFM retentate using a P19-60 ceramic membrane (0.2μm pore size), and water-soluble micro-algae metabolites left in the CFM filtrate were concentrated by RO. Large volumes of water (micro-algae culture media) of were recycled by the CMTS for another biomass production cycle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=extraction" title="extraction">extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=membrane%20process" title=" membrane process"> membrane process</a>, <a href="https://publications.waset.org/abstracts/search?q=microalgae" title=" microalgae"> microalgae</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20compound" title=" natural compound"> natural compound</a> </p> <a href="https://publications.waset.org/abstracts/74151/process-for-production-of-added-value-water-extract-from-liquid-biomass" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74151.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">279</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2907</span> Metabolomics Profile Recognition for Cancer Diagnostics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Valentina%20L.%20Kouznetsova">Valentina L. Kouznetsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20W.%20Wang"> Jonathan W. Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20F.%20Tsigelny"> Igor F. Tsigelny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metabolomics has become a rising field of research for various diseases, particularly cancer. Increases or decreases in metabolite concentrations in the human body are indicative of various cancers. Further elucidation of metabolic pathways and their significance in cancer research may greatly spur medicinal discovery. We analyzed the metabolomics profiles of lung cancer. Thirty-three metabolites were selected as significant. These metabolites are involved in 37 metabolic pathways delivered by MetaboAnalyst software. The top pathways are glyoxylate and dicarboxylate pathway (its hubs are formic acid and glyoxylic acid) along with Citrate cycle pathway followed by Taurine and hypotaurine pathway (the hubs in the latter are taurine and sulfoacetaldehyde) and Glycine, serine, and threonine pathway (the hubs are glycine and L-serine). We studied interactions of the metabolites with the proteins involved in cancer-related signaling networks, and developed an approach to metabolomics biomarker use in cancer diagnostics. Our analysis showed that a significant part of lung-cancer-related metabolites interacts with main cancer-related signaling pathways present in this network: PI3K–mTOR–AKT pathway, RAS–RAF–ERK1/2 pathway, and NFKB pathway. These results can be employed for use of metabolomics profiles in elucidation of the related cancer proteins signaling networks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cancer" title="cancer">cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolic%20pathway" title=" metabolic pathway"> metabolic pathway</a>, <a href="https://publications.waset.org/abstracts/search?q=signaling%20pathway" title=" signaling pathway"> signaling pathway</a> </p> <a href="https://publications.waset.org/abstracts/54096/metabolomics-profile-recognition-for-cancer-diagnostics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54096.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">401</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2906</span> Secondary Metabolites from Turkish Marine-Derived Fungi Hypocrea nigricans</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Heydari">H. Heydari</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Konuklugil"> B. Konuklugil</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Proksch"> P. Proksch</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Marine-derived fungi can produce interesting bioactive secondary metabolites that can be considered the potential for drug development. Turkey is a country of a peninsula surrounded by the Black Sea at the north, the Aegean Sea at the west, and the Mediterranean Sea at the south. Despite the approximately 8400 km of coastline, studies on marine secondary metabolites and their biological activity are limited. In our ongoing search for new natural products with different bioactivities produced by the marine-derived fungi, we have investigated secondary metabolites of Turkish collection of the marine sea slug (Peltodoris atromaculata) associated fungi Hypocrea nigricans collected from Seferihisar in the Egean sea. According to the author’s best knowledge, no study was found on this fungal species in terms of secondary metabolites. Isolated from ethyl acetate extract of the culture of Hypocrea nigricans were (isodihydroauroglaucin,tetrahydroauroglaucin and dihydroauroglaucin. The structures of the compounds were established based on an NMR and MS analysis. Structural elucidation of another isolated secondary metabolite/s continues. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hypocrea%20nigricans" title="Hypocrea nigricans">Hypocrea nigricans</a>, <a href="https://publications.waset.org/abstracts/search?q=isolation" title=" isolation"> isolation</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20fungi" title=" marine fungi"> marine fungi</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20metabolites" title=" secondary metabolites"> secondary metabolites</a> </p> <a href="https://publications.waset.org/abstracts/113549/secondary-metabolites-from-turkish-marine-derived-fungi-hypocrea-nigricans" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113549.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">162</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2905</span> Simultaneous Production of Forskolin and Rosmarinic Acid in vitro Cultures of Coleus Forskohlii Briq</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ennus%20Tajuddin%20Tamboli">Ennus Tajuddin Tamboli</a>, <a href="https://publications.waset.org/abstracts/search?q=Madhukar%20Garg"> Madhukar Garg</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd.%20Mujeeb"> Mohd. Mujeeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Sayeed%20Ahmad"> Sayeed Ahmad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An efficient protocol for simultaneous production of forskolin and rosmarinic acid in in vitro callus derived from the leaves of Coleus forskohlii Briq. has been developed. MS media was used for the establishment of cultures and NAA + 6-BA (1.0 ppm) was found best for callus growth. The callus was further subjected to treatment with various elicitor/precursors viz. chitosan, thidiazuron and methyl jasmonate to observe their effect on production of biomass and accumulation of secondary metabolites. The content of forskolin and rosmarinic acid were estimated by HPTLC, in comparison to natural explant which showed 2 fold and 10 fold rise in forskolin and rosmarinic acid content, respectively. Methy1 jasmonate 50 µM was found best for production of forskolin, whereas thidiazuron showed best results in the yield of rosmarinic acid, separately in static culture. However, combined treatment in suspension culture showed moderated effect for increase in secondary metabolites but the biomass increased significantly as compared to static culture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plant%20tissue%20culture" title="plant tissue culture">plant tissue culture</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20metabolites" title=" secondary metabolites"> secondary metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=coleus" title=" coleus"> coleus</a>, <a href="https://publications.waset.org/abstracts/search?q=forskolin" title=" forskolin"> forskolin</a>, <a href="https://publications.waset.org/abstracts/search?q=rosmarinic%20acid" title=" rosmarinic acid"> rosmarinic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=HPTLC" title=" HPTLC"> HPTLC</a> </p> <a href="https://publications.waset.org/abstracts/1357/simultaneous-production-of-forskolin-and-rosmarinic-acid-in-vitro-cultures-of-coleus-forskohlii-briq" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1357.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">343</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2904</span> Heroin and Opiates Metabolites Tracing by Gas-Chromatography Isotope Ratio Mass Spectrometry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yao-Te%20Yen">Yao-Te Yen</a>, <a href="https://publications.waset.org/abstracts/search?q=Chao-Hsin%20Cheng"> Chao-Hsin Cheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Meng-Shun%20Huang"> Meng-Shun Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shan-Zong%20Cyue"> Shan-Zong Cyue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 'Poppy-seed defense' has been a serious problem all over the world, that is because the opiates metabolites in urine are difficult to distinguish where they come from precisely. In this research, a powerful analytic method has been developed to trace the opiates metabolites in urine by Gas-Chromatography Isotope Ratio Mass Spectrometry (GC-IRMS). In order to eliminate the interference of synthesis to heroin or metabolism through human body, opiates metabolites in urine and sized heroin were hydrolyzed to morphine. Morphine is the key compound for tracing between opiates metabolites and seized heroin in this research. By matching δ13C and δ15N values through morphine, it is successful to distinguish the opiates metabolites coming from heroin or medicine. We tested seven heroin abuser’s metabolites and seized heroin in crime sites, the result showed that opiates metabolites coming from seized heroin, the variation of δ13C and δ15N for morphine are within 0.2 and 2.5‰, respectively. The variation of δ13C and δ15N for morphine are reasonable with the result of matrix match experiments. Above all, the uncertainty of 'Poppy-seed defense' can be solved easily by this analytic method, it provides the direct evidence for judge to make accurate conviction without hesitation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=poppy-seed%20defense" title="poppy-seed defense">poppy-seed defense</a>, <a href="https://publications.waset.org/abstracts/search?q=heroin" title=" heroin"> heroin</a>, <a href="https://publications.waset.org/abstracts/search?q=opiates%20metabolites" title=" opiates metabolites"> opiates metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=isotope%20ratio%20mass%20spectrometry" title=" isotope ratio mass spectrometry"> isotope ratio mass spectrometry</a> </p> <a href="https://publications.waset.org/abstracts/74236/heroin-and-opiates-metabolites-tracing-by-gas-chromatography-isotope-ratio-mass-spectrometry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74236.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">239</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2903</span> An Association Model to Correlate the Experimentally Determined Mixture Solubilities of Methyl 10-Undecenoate with Methyl Ricinoleate in Supercritical Carbon Dioxide</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20Mani%20Rathnam">V. Mani Rathnam</a>, <a href="https://publications.waset.org/abstracts/search?q=Giridhar%20Madras"> Giridhar Madras</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fossil fuels are depleting rapidly as the demand for energy, and its allied chemicals are continuously increasing in the modern world. Therefore, sustainable renewable energy sources based on non-edible oils are being explored as a viable option as they do not compete with the food commodities. Oils such as castor oil are rich in fatty acids and thus can be used for the synthesis of biodiesel, bio-lubricants, and many other fine industrial chemicals. There are several processes available for the synthesis of different chemicals obtained from the castor oil. One such process is the transesterification of castor oil, which results in a mixture of fatty acid methyl esters. The main products in the above reaction are methyl ricinoleate and methyl 10-undecenoate. To separate these compounds, supercritical carbon dioxide (SCCO₂) was used as a green solvent. SCCO₂ was chosen as a solvent due to its easy availability, non-toxic, non-flammable, and low cost. In order to design any separation process, the preliminary requirement is the solubility or phase equilibrium data. Therefore, the solubility of a mixture of methyl ricinoleate with methyl 10-undecenoate in SCCO₂ was determined in the present study. The temperature and pressure range selected for the investigation were T = 313 K to 333 K and P = 10 MPa to 18 MPa. It was observed that the solubility (mol·mol⁻¹) of methyl 10-undecenoate varied from 2.44 x 10⁻³ to 8.42 x 10⁻³ whereas it varied from 0.203 x 10⁻³ to 6.28 x 10⁻³ for methyl ricinoleate within the chosen operating conditions. These solubilities followed a retrograde behavior (characterized by the decrease in the solubility values with the increase in temperature) throughout the range of investigated operating conditions. An association theory model, coupled with regular solution theory for activity coefficients, was developed in the present study. The deviation from the experimental data using this model can be quantified using the average absolute relative deviation (AARD). The AARD% for the present compounds is 4.69 and 8.08 for methyl 10-undecenoate and methyl ricinoleate, respectively in a mixture of methyl ricinoleate and methyl 10-undecenoate. The maximum solubility enhancement of 32% was observed for the methyl ricinoleate in a mixture of methyl ricinoleate and methyl 10-undecenoate. The highest selectivity of SCCO₂ was observed to be 12 for methyl 10-undecenoate in a mixture of methyl ricinoleate and methyl 10-undecenoate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=association%20theory" title="association theory">association theory</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20mixtures" title=" liquid mixtures"> liquid mixtures</a>, <a href="https://publications.waset.org/abstracts/search?q=solubilities" title=" solubilities"> solubilities</a>, <a href="https://publications.waset.org/abstracts/search?q=supercritical%20carbon%20dioxide" title=" supercritical carbon dioxide"> supercritical carbon dioxide</a> </p> <a href="https://publications.waset.org/abstracts/107534/an-association-model-to-correlate-the-experimentally-determined-mixture-solubilities-of-methyl-10-undecenoate-with-methyl-ricinoleate-in-supercritical-carbon-dioxide" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107534.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2902</span> Effect of Asymmetric Amphiphilic Dicationic Ionic Liquids as Oil Spill Dispersants in Red Sea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raghda%20El-Nagara">Raghda El-Nagara</a>, <a href="https://publications.waset.org/abstracts/search?q=Maher%20I.%20Nessim"> Maher I. Nessim</a>, <a href="https://publications.waset.org/abstracts/search?q=Carmen%20E.%20Elshafee"> Carmen E. Elshafee</a>, <a href="https://publications.waset.org/abstracts/search?q=Renee%20I.%20Abdallah"> Renee I. Abdallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasser%20M.%20Moustafa"> Yasser M. Moustafa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Three asymmetric dicationic ionic liquids (ADILs), 1-(2-(1-dodecyl-2-methyl-1H-imidazolium-3-yl)ethyl)-3-methyl pyridinium bromide (IL₁), 1-(6-(1-dodecyl-2-methyl-1H-imidazolium-3-yl)hexyl)-3-methyl pyridinium bromide (IL₂) and 1-(10-(1-dodecyl-2-methyl-1H-imidazolium-3-yl)decyl)-3-methyl pyridinium bromide (IL₃) were synthesized with yield of 83.54, 84.12 & 83.05% respectively. They were elucidated via conventional tools of analysis (elemental analysis, FT-IR, and 1H-NMR). The thermogravimetric analysis confirmed that the three ADILs possessed high thermal stability (up to 500ᵒC). Their critical micelle concentration (CMC) was investigated and exhibited values of 5.5-1*10⁻³ Mol./L. They were evaluated as oil spill dispersants were at different temperatures (10, 30 & 50ᵒC) with different concentrations (750, 1500, 2000, 3000 ppm). Data reveals that the efficiency is ranked as follows: IL₂ > IL₁ > IL₃, which showed high dispersion efficiency reached to 63% with the concentration of 1500 ppm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquids" title="ionic liquids">ionic liquids</a>, <a href="https://publications.waset.org/abstracts/search?q=amphiphilic" title=" amphiphilic"> amphiphilic</a>, <a href="https://publications.waset.org/abstracts/search?q=oil%20spill%20dispersants" title=" oil spill dispersants"> oil spill dispersants</a>, <a href="https://publications.waset.org/abstracts/search?q=dicationic" title=" dicationic"> dicationic</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency%20test" title=" efficiency test"> efficiency test</a> </p> <a href="https://publications.waset.org/abstracts/135621/effect-of-asymmetric-amphiphilic-dicationic-ionic-liquids-as-oil-spill-dispersants-in-red-sea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135621.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">152</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2901</span> Solar Photocatalysis of Methyl Orange Using Multi-Ion Doped TiO2 Catalysts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Victor%20R.%20Thulari">Victor R. Thulari</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Akach"> John Akach</a>, <a href="https://publications.waset.org/abstracts/search?q=Haleden%20Chiririwa"> Haleden Chiririwa</a>, <a href="https://publications.waset.org/abstracts/search?q=Aoyi%20Ochieng"> Aoyi Ochieng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solar-light activated titanium dioxide photocatalysts were prepared by hydrolysis of titanium (IV) isopropoxide with thiourea, followed by calcinations at 450 °C. The experiments demonstrated that methyl orange in aqueous solutions were successfully degraded under solar light using doped TiO<sub>2</sub>. The photocatalytic oxidation of a mono azo methyl-orange dye has been investigated in multi ion doped TiO<sub>2</sub> and solar light. Solutions were irradiated by solar-light until high removal was achieved. It was found that there was no degradation of methyl orange in the dark and in the absence of TiO<sub>2</sub>. Varieties of laboratory prepared TiO<sub>2</sub> catalysts both un-doped and doped using titanium (IV) isopropoxide and thiourea as a dopant were tested in order to compare their photoreactivity. As a result, it was found that the efficiency of the process strongly depends on the working conditions. The highest degradation rate of methyl orange was obtained at optimum dosage using commercially produced TiO<sub>2</sub>. Our work focused on laboratory synthesized catalyst and the maximum methyl orange removal was achieved at 81% with catalyst loading of 0.04 g/L, initial pH of 3 and methyl orange concentration of 0.005 g/L using multi-ion doped catalyst. The kinetics of photocatalytic methyl orange dye stuff degradation was found to follow a pseudo-first-order rate law. The presence of the multi-ion dopant (thiourea) enhanced the photoefficiency of the titanium dioxide catalyst. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=degradation" title="degradation">degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=kinetics" title=" kinetics"> kinetics</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20orange" title=" methyl orange"> methyl orange</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title=" photocatalysis"> photocatalysis</a> </p> <a href="https://publications.waset.org/abstracts/59808/solar-photocatalysis-of-methyl-orange-using-multi-ion-doped-tio2-catalysts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59808.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2900</span> Glycerol-Free Biodiesel Synthesis from Crude Mahua (Madhuca indica) Oil under Supercritical Methyl Acetate Using CO2 as a Co-Solvent</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Antaram%20Sarve">Antaram Sarve</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahesh%20Varma"> Mahesh Varma</a>, <a href="https://publications.waset.org/abstracts/search?q=Shriram%20Sonawane"> Shriram Sonawane</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Conventional route of producing biodiesel with alcohol produces glycerol as side product which leads to oversupply and devaluation in the world market. Supercritical methyl acetate (SCMA) has been proven to convert triglycerides into fatty acid methyl esters (FAMEs) and triacetin, which is a valuable biodiesel additive as side product rather than glycerol. However, due to the low reactivity of supercritical methyl acetate on triglycerides, high reaction conditions are required to obtained maximum yields. The present study describes the renewable approach for the production of biodiesel from low-cost, high acid value mahua oil under supercritical methyl acetate condition using carbon dioxide (CO2) as a co-solvent. CO2 was employed to decrease high reaction conditions required for supercritical methyl acetate transesterification. The inﬂuence of process parameters such as temperature, oil to methyl acetate molar ratio, reaction time, and the CO2 pressure was evaluated. The properties of biodiesel produced were found to be superior compared to conventional biodiesel method. Furthermore, SCMA has a high tolerance towards free fatty acids (FFAs) which is crucial to allow the utilization of inexpensive waste oils as a biodiesel feedstock. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=supercritical%20methyl%20acetate" title="supercritical methyl acetate">supercritical methyl acetate</a>, <a href="https://publications.waset.org/abstracts/search?q=CO2" title=" CO2"> CO2</a>, <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title=" biodiesel"> biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20properties" title=" fuel properties"> fuel properties</a> </p> <a href="https://publications.waset.org/abstracts/34550/glycerol-free-biodiesel-synthesis-from-crude-mahua-madhuca-indica-oil-under-supercritical-methyl-acetate-using-co2-as-a-co-solvent" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34550.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">563</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2899</span> Study of Intermolecular Interactions in Binary Mixtures of 1-Butyl-3-Methyl Imidazolium Bis (Trifluoro Methyl Sulfonyl) Imide and 1-Ethyl-3-Methyl Imidazolium Ethyl Sulphate at Different Temperature from 293.18 to 342.15 K</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20Lokesh">V. Lokesh</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Manjunathan"> M. Manjunathan</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Sairam"> S. Sairam</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Saithsh%20Kumar"> K. Saithsh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Anantharaj"> R. Anantharaj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The densities of pure and its binary mixtures of 1-Butyl-3-methyl imidazolium bis (trifluoro methyl sulfonyl) imide and 1–Ethyl-3-methyl imidazolium ethyl sulphate at different temperature, over the entire composition range were measured at 293.15, 298.15, 303.15, 308.15, 313.15, 318.15, 323.15, 328.15, 33.15, 338.15, 343.15 K. In this study, the liquid-liquid extraction procedure was used. From this experimental data, the excess molar volumes, apparent molar volume, partial molar volumes and the excess partial molar volumes have been calculated for over the whole composition range. Hence, the effect of temperature and composition on all derived thermodynamic properties of this binary mixture will be discussed in terms of intermolecular interactions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title="ionic liquid">ionic liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=interaction%20energy" title=" interaction energy"> interaction energy</a>, <a href="https://publications.waset.org/abstracts/search?q=effect%20of%20temperature" title=" effect of temperature"> effect of temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=effect%20of%20composition" title=" effect of composition"> effect of composition</a> </p> <a href="https://publications.waset.org/abstracts/81348/study-of-intermolecular-interactions-in-binary-mixtures-of-1-butyl-3-methyl-imidazolium-bis-trifluoro-methyl-sulfonyl-imide-and-1-ethyl-3-methyl-imidazolium-ethyl-sulphate-at-different-temperature-from-29318-to-34215-k" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81348.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">172</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2898</span> The Order Russulales of Basidiomycota: Systematics, Ecology and Chemotaxonomy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marco%20Clericuzio">Marco Clericuzio</a>, <a href="https://publications.waset.org/abstracts/search?q=Alfredo%20Vizzini"> Alfredo Vizzini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The secondary metabolites of Russulales (one of the main orders of phylum Basidiomycota), have been studied. They are mainly terpenoids, with sesquiterpenes being the most common ones, but also triterpenoids and prenylated phenols have been isolated. We found that classes of specific compounds seem to be often allied to systematic groupings, so that they may have chemotaxonomic significance. Moreover, the ecological implications of such metabolites, as well as their biological activities, are discussed. Lately, we have focused our attention on the anti-arthropod activity of Russula metabolites, in particular on the toxicity against mites and other crop pests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemotaxonomy" title="chemotaxonomy">chemotaxonomy</a>, <a href="https://publications.waset.org/abstracts/search?q=fungi" title=" fungi"> fungi</a>, <a href="https://publications.waset.org/abstracts/search?q=insecticidal%20activity" title=" insecticidal activity"> insecticidal activity</a>, <a href="https://publications.waset.org/abstracts/search?q=russulales" title=" russulales"> russulales</a>, <a href="https://publications.waset.org/abstracts/search?q=terpenoids" title=" terpenoids"> terpenoids</a> </p> <a href="https://publications.waset.org/abstracts/123286/the-order-russulales-of-basidiomycota-systematics-ecology-and-chemotaxonomy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123286.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">169</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2897</span> Critical Role of Lipid Rafts in Influenza a Virus Binding to Host Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dileep%20Kumar%20Verma">Dileep Kumar Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunil%20Kumar%20Lal"> Sunil Kumar Lal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Influenza still remains one of the most challenging diseases posing significant threat to public health causing seasonal epidemics and pandemics. Influenza A Virus (IAV) surface protein hemagglutinin is known to play an important role in viral attachment to the host sialic acid receptors and concentrate in lipid rafts for efficient viral fusion. Selective nature of Influenza A virus to utilize rafts micro-domain for efficient virus assembly and budding has been explored in depth. However, the detailed mechanism of IAV binding to host cell membrane and entry into the host remains elusive. In the present study we investigated the role of lipid rafts in early life cycle events of IAV. Role of host lipid rafts was studied using raft disruption method by extraction of cholesterol by Methyl-β-Cyclodextrin. Using GM1, a well-known lipid raft marker, we were able to observe co-localization of IAV on lipid rafts on the host cell membrane. This experiment suggests a direct involvement of lipid rafts in the initiation of the IAV life cycle. Upon disruption of lipid rafts by Methyl-b-cyclodextrin, we observed a significant reduction in IAV binding on the host cell surface indicating a significant decrease in virus attachment to coherent membrane rafts. Our results provide proof that host lipid rafts and their constituents play an important role in the adsorption of IAV. This study opens a new avenues in IAV virus-host interactions to combat infection at a very early steps of the viral lifecycle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lipid%20raft" title="lipid raft">lipid raft</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=cholesterol" title=" cholesterol"> cholesterol</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl-%CE%B2-cyclodextrin" title=" methyl-β-cyclodextrin"> methyl-β-cyclodextrin</a>, <a href="https://publications.waset.org/abstracts/search?q=GM1" title=" GM1"> GM1</a> </p> <a href="https://publications.waset.org/abstracts/43068/critical-role-of-lipid-rafts-in-influenza-a-virus-binding-to-host-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43068.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2896</span> Transcriptomic Analysis for Differential Expression of Genes Involved in Secondary Metabolite Production in Narcissus Bulb and in vitro Callus</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aleya%20Ferdausi">Aleya Ferdausi</a>, <a href="https://publications.waset.org/abstracts/search?q=Meriel%20Jones"> Meriel Jones</a>, <a href="https://publications.waset.org/abstracts/search?q=Anthony%20Halls"> Anthony Halls</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Amaryllidaceae genus Narcissus contains secondary metabolites, which are important sources of bioactive compounds such as pharmaceuticals indicating that their biological activity extends from the native plant to humans. Transcriptome analysis (RNA-seq) is an effective platform for the identification and functional characterization of candidate genes as well as to identify genes encoding uncharacterized enzymes. The biotechnological production of secondary metabolites in plant cell or organ cultures has become a tempting alternative to the extraction of whole plant material. The biochemical pathways for the production of secondary metabolites require primary metabolites to undergo a series of modifications catalyzed by enzymes such as cytochrome P450s, methyltransferases, glycosyltransferases, and acyltransferases. Differential gene expression analysis of Narcissus was obtained from two conditions, i.e. field and in vitro callus. Callus was obtained from modified MS (Murashige and Skoog) media supplemented with growth regulators and twin-scale explants from Narcissus cv. Carlton bulb. A total of 2153 differentially expressed transcripts were detected in Narcissus bulb and in vitro callus, and 78.95% of those were annotated. It showed the expression of genes involved in the biosynthesis of alkaloids were present in both conditions i.e. cytochrome P450s, O-methyltransferase (OMTs), NADP/NADPH dehydrogenases or reductases, SAM-synthetases or decarboxylases, 3-ketoacyl-CoA, acyl-CoA, cinnamoyl-CoA, cinnamate 4-hydroxylase, alcohol dehydrogenase, caffeic acid, N-methyltransferase, and NADPH-cytochrome P450s. However, cytochrome P450s and OMTs involved in the later stage of Amaryllidaceae alkaloids biosynthesis were mainly up-regulated in field samples. Whereas, the enzymes involved in initial biosynthetic pathways i.e. fructose biphosphate adolase, aminotransferases, dehydrogenases, hydroxyl methyl glutarate and glutamate synthase leading to the biosynthesis of precursors; tyrosine, phenylalanine and tryptophan for secondary metabolites were up-regulated in callus. The knowledge of probable genes involved in secondary metabolism and their regulation in different tissues will provide insight into the Narcissus plant biology related to alkaloid production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=narcissus" title="narcissus">narcissus</a>, <a href="https://publications.waset.org/abstracts/search?q=callus" title=" callus"> callus</a>, <a href="https://publications.waset.org/abstracts/search?q=transcriptomics" title=" transcriptomics"> transcriptomics</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20metabolites" title=" secondary metabolites"> secondary metabolites</a> </p> <a href="https://publications.waset.org/abstracts/113474/transcriptomic-analysis-for-differential-expression-of-genes-involved-in-secondary-metabolite-production-in-narcissus-bulb-and-in-vitro-callus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113474.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">143</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2895</span> GAC Adsorption Modelling of Metsulfuron Methyl from Water</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nathaporn%20Areerachakul">Nathaporn Areerachakul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the adsorption capacity of GAC with metsulfuron methyl was evaluated by using adsorption equilibrium and a fixed bed. Mathematical modelling was also used to simulate the GAC adsorption behavior. Adsorption equilibrium experiment of GAC was conducted using a constant concentration of metsulfuron methyl of 10 mg/L. The purpose of this study was to find the single component equilibrium concentration of herbicide. The adsorption behavior was simulated using the Langmuir, Freundlich, and Sips isotherm. The Sips isotherm fitted the experimental data reasonably well with an error of 6.6 % compared with 15.72 % and 7.07% for the Langmuir isotherm and Freudrich isotherm. Modelling using GAC adsorption theory could not replicate the experimental results in fixed bed column of 10 and 15 cm bed depths after a period more than 10 days of operation. This phenomenon is attributed to the formation of micro-organism (BAC) on the surface of GAC in addition to GAC alone. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=isotherm" title="isotherm">isotherm</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption%20equilibrium" title=" adsorption equilibrium"> adsorption equilibrium</a>, <a href="https://publications.waset.org/abstracts/search?q=GAC" title=" GAC"> GAC</a>, <a href="https://publications.waset.org/abstracts/search?q=metsulfuron%20methyl" title=" metsulfuron methyl"> metsulfuron methyl</a> </p> <a href="https://publications.waset.org/abstracts/8935/gac-adsorption-modelling-of-metsulfuron-methyl-from-water" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8935.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">310</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2894</span> Phytobeds with Fimbristylis dichotoma and Ammannia baccifera for Treatment of Real Textile Effluent: An in situ Treatment, Anatomical Studies and Toxicity Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suhas%20Kadam">Suhas Kadam</a>, <a href="https://publications.waset.org/abstracts/search?q=Vishal%20Chandanshive"> Vishal Chandanshive</a>, <a href="https://publications.waset.org/abstracts/search?q=Niraj%20Rane"> Niraj Rane</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20Govindwar"> Sanjay Govindwar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fimbristylis dichotoma, Ammannia baccifera, and their co-plantation consortium FA were found to degrade methyl orange, simulated dye mixture, and real textile effluent. Wild plants of Fimbristylis dichotoma and Ammannia baccifera with equal biomass showed 91 and 89% decolorization of methyl orange within 60 h at a concentration of 50 ppm, while 95% dye removal was achieved by consortium FA within 48 h. Floating phyto-beds with co-plantation (Fimbristylis dichotoma and Ammannia baccifera) for the treatment of real textile effluent in a constructed wetland was observed to be more efficient and achieved 79, 72, 77, 66 and 56% reductions in ADMI color value, chemical oxygen demand, biological oxygen demand, total dissolve solid and total suspended solid of textile effluent, respectively. High performance thin layer chromatography, gas chromatography-mass spectroscopy, Fourier transform infrared spectroscopy, Ultra violet-Visible spectroscopy and enzymatic assays confirmed the phytotransformation of parent dye in the new metabolites. T-RFLP analysis of rhizospheric bacteria of Fimbristylis dichotoma, Ammannia baccifera, and consortium FA revealed the presence of 88, 98 and 223 genera which could have been involved in dye removal. Toxicity evaluation of products formed after phytotransformation of methyl orange by consortium FA on bivalves Lamellidens marginalis revealed less damage in the gills architecture when analyzed histologically. Toxicity measurement by Random Amplification of Polymorphic DNA (RAPD) technique revealed normal banding pattern in treated methyl orange sample suggesting less toxic nature of phytotransformed dye products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=constructed%20wetland" title="constructed wetland">constructed wetland</a>, <a href="https://publications.waset.org/abstracts/search?q=phyto-bed" title=" phyto-bed"> phyto-bed</a>, <a href="https://publications.waset.org/abstracts/search?q=textile%20effluent" title=" textile effluent"> textile effluent</a>, <a href="https://publications.waset.org/abstracts/search?q=phytoremediation" title=" phytoremediation"> phytoremediation</a> </p> <a href="https://publications.waset.org/abstracts/78943/phytobeds-with-fimbristylis-dichotoma-and-ammannia-baccifera-for-treatment-of-real-textile-effluent-an-in-situ-treatment-anatomical-studies-and-toxicity-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78943.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">483</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2893</span> Isothermal Crystallization Kinetics of Lauric Acid Methyl Ester from DSC Measurements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Charine%20Faith%20H.%20Lagrimas">Charine Faith H. Lagrimas</a>, <a href="https://publications.waset.org/abstracts/search?q=Rommel%20N.%20Galvan"> Rommel N. Galvan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rizalinda%20L.%20de%20Leon"> Rizalinda L. de Leon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An ongoing study, methyl laurate to be used as a refrigerant in an HVAC system, requires the crystallization kinetics of the said substance. Step-wise and normal forms of Avrami model parameters were used to describe the isothermal crystallization kinetics of methyl laurate at different temperatures from Differential Scanning Calorimetry (DSC) measurements. At 3 °C, parameters showed that methyl laurate exhibits a secondary crystallization. The primary crystallization occurred with instantaneous nuclei and spherulitic growth; followed by a secondary instantaneous nucleation with a lower growth of dimensionality, rod-like. At 4 °C to 6 °C, the exotherms from DSC implied that the system was under the isokinetic range. The kinetics behavior is the same which is instantaneous nucleation with one-dimensional growth. The differences for the isokinetic range temperatures are the activation energies (directly proportional to T) and nucleation rates (inversely proportional to T). From the images obtained during the crystallization of methyl laurate using an optical microscope, it is confirmed that the nucleation and crystal growth modes obtained from the optical microscope are consistent with the parameters from Avrami model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Avrami%20model" title="Avrami model">Avrami model</a>, <a href="https://publications.waset.org/abstracts/search?q=isothermal%20crystallization" title=" isothermal crystallization"> isothermal crystallization</a>, <a href="https://publications.waset.org/abstracts/search?q=lipids%20kinetics" title=" lipids kinetics"> lipids kinetics</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20laurate" title=" methyl laurate"> methyl laurate</a> </p> <a href="https://publications.waset.org/abstracts/27068/isothermal-crystallization-kinetics-of-lauric-acid-methyl-ester-from-dsc-measurements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27068.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">342</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2892</span> The Impact of Ramadan Fasting on Blood Pressure: Observational Study and a Meta-Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rami%20Al%20Jafar">Rami Al Jafar</a>, <a href="https://publications.waset.org/abstracts/search?q=Paul%20Elliott"> Paul Elliott</a>, <a href="https://publications.waset.org/abstracts/search?q=Konstantinos%20K.%20Tsilidis"> Konstantinos K. Tsilidis</a>, <a href="https://publications.waset.org/abstracts/search?q=Abbas%20Dehghan"> Abbas Dehghan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although Ramadan fasting is a ritual that is practiced every year by millions of Muslims, studies on Ramadan fasting are still scarce. To the best of our knowledge, none of the previous studies comprehensively explored the effect on the metabolic profile. In London Ramadan Fasting Study, blood samples were collected from 81 participants before and 10-14 days after Ramadan. Blood samples were analysed using nuclear magnetic resonance (NMR) spectroscopy which covers 249 metabolites. Mixed-effects models were used to analyse collected data and assess the effect of Ramadan fasting on the metabolic profile. Our observational study involved 85 individuals with a mean age of 45.2 years, and 53.1% of them were males. After Ramadan, forty metabolites were affected significantly by Ramadan fasting. Most of these metabolites were metabolites ratios (24), and the rest were three Glycolysis, three ketone bodies, nine Lipoprotein subclasses and one inflammation marker. This study suggests that Ramadan fasting is significantly associated with changes in the metabolic profile. However, the changes are assumed to be temporary, and the long-term effect of these changes is unknown. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metabolic%20profile" title="metabolic profile">metabolic profile</a>, <a href="https://publications.waset.org/abstracts/search?q=Ramadan%20fasting" title=" Ramadan fasting"> Ramadan fasting</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=intermittent%20fasting" title=" intermittent fasting"> intermittent fasting</a> </p> <a href="https://publications.waset.org/abstracts/148317/the-impact-of-ramadan-fasting-on-blood-pressure-observational-study-and-a-meta-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148317.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">167</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2891</span> Host Cell Membrane Lipid Rafts Are Required for Influenza A Virus Adsorption to Host Cell Surface</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dileep%20K.%20Verma">Dileep K. Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunil%20K.%20Lal"> Sunil K. Lal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Influenza still remains one of the most challenging diseases posing significant threat to public health causing seasonal epidemics and pandemics. Previous studies suggest that influenza hemagglutinin is essential for viral attachment to host sialic acid receptors and concentrate in lipid rafts for efficient viral fusion. Studies also reported selective nature of Influenza virus to utilize rafts micro-domain for efficient virus assembly and budding. However, the detailed mechanism of Influenza A Virus (IAV) binding to host cell membrane and entry inside the host remains elusive. In the present study, we investigated if host membrane lipid rafts play any significant role in early life cycle events of influenza A virus. Role of host lipid rafts was studied using raft disruption method by extraction of cholesterol and Methyl-β-Cyclodextrin was used to remove membrane cholesterol. We observed co-localization of Influenza A Virus to lipid rafts by visualization of known lipid raft marker GM1 on host cell membrane. Co-localization suggest direct involvement of these micro-domain in initiation of IAV life cycle. We found significant reduction in influenza A virus adsorption in raft disrupted target host cells indicating poor binding and attachment in absence of coherent membrane rafts. Taken together, the results of present study provide evidence for critical involvement of host lipid rafts and its constituents in adsorption process of Influenza A Virus and suggests crucial involvement in other early events of IAV life cycle. The present study opens a new domain to study influenza virus-host interaction and to combat flu at the very early steps of viral life cycle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lipid%20raft" title="lipid raft">lipid raft</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=cholesterol" title=" cholesterol"> cholesterol</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl-%CE%B2-cyclodextrin" title=" methyl-β-cyclodextrin"> methyl-β-cyclodextrin</a>, <a href="https://publications.waset.org/abstracts/search?q=GM1" title=" GM1"> GM1</a> </p> <a href="https://publications.waset.org/abstracts/40531/host-cell-membrane-lipid-rafts-are-required-for-influenza-a-virus-adsorption-to-host-cell-surface" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40531.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">297</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2890</span> Nutraceutical Potential of Mushroom Bioactive Metabolites and Their Food Functionality</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jackson%20Ishara">Jackson Ishara</a>, <a href="https://publications.waset.org/abstracts/search?q=Ariel%20Buzera"> Ariel Buzera</a>, <a href="https://publications.waset.org/abstracts/search?q=Gustave%20N.%20Mushagalusa"> Gustave N. Mushagalusa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20R.%20A.%20Hammam"> Ahmed R. A. Hammam</a>, <a href="https://publications.waset.org/abstracts/search?q=Judith%20Munga"> Judith Munga</a>, <a href="https://publications.waset.org/abstracts/search?q=Paul%20Karanja"> Paul Karanja</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Kinyuru"> John Kinyuru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerous mushroom bioactive metabolites, including polysaccharides, eritadenine, lignin, chitosan, mevinolin, and astrakurkurone have been studied in life-threatening conditions and diseases such as diabetes, cardiovascular, hypertension, cancer, DNA damage, hypercholesterolemia, and obesity attempting to identify natural therapies. These bioactive metabolites have shown potential as antiviral and immune system strengthener natural agents through diverse cellular and physiological pathways modulation with no toxicity evidence, widely available, and affordable. In light of the emerging literature, this paper compiles the most recent information describing the molecular mechanisms that underlie the nutraceutical potentials of these mushroom metabolites suggesting their effectiveness if combined with existing drug therapies. The findings raise hope that these mushroom bioactive metabolites may be utilized as natural therapies considering their therapeutic potential while anticipating further research designing clinical trials and developing new drug therapies while encouraging their consumption as a natural adjuvant in preventing and controlling life-threatening conditions and diseases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioactive%20metabolites" title="bioactive metabolites">bioactive metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20functionality" title=" food functionality"> food functionality</a>, <a href="https://publications.waset.org/abstracts/search?q=health-threatening%20conditions" title=" health-threatening conditions"> health-threatening conditions</a>, <a href="https://publications.waset.org/abstracts/search?q=mushrooms" title=" mushrooms"> mushrooms</a>, <a href="https://publications.waset.org/abstracts/search?q=nutraceutical" title=" nutraceutical"> nutraceutical</a> </p> <a href="https://publications.waset.org/abstracts/151778/nutraceutical-potential-of-mushroom-bioactive-metabolites-and-their-food-functionality" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151778.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">103</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2889</span> Synthesis and Characterization of New Polyesters Based on Diarylidene-1-Methyl-4-Piperidone</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tareg%20M.%20Elsunaki">Tareg M. Elsunaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Suleiman%20A.%20Arafa"> Suleiman A. Arafa</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Abd-Alla"> Mohamed A. Abd-Alla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> New interesting thermal stable polyesters containing 1-methyl-4-piperidone moiety in the main chain have been synthesized. These polyesters were synthesized by interfacial polycondensation technique of 3,5-bis(4-hydroxybenzylidene)-1-methyl-4-piperidone (I) and 3,5-bis(4-hydroxy-3-methoxy benzyli-dene)-1-methyl-4-piperidone (II) with terphthaloyl, isophthaloyl, 4,4'-diphenic, adipoyl and sebacoyl dichlorides. The yield and the values of the reduced viscosity of the produced polyesters were found to be affected by the type of an organic phase. In order to characterize these polymers, the necessary model compounds (A), (B) were prepared from (I), (II) respectively and benzoyl chloride. The structure of monomers (I), (II), model compounds and resulting polyesters were confirmed by IR, elemental analysis and 1HNMR spectroscopy. The various characteristic of the resulting polymers including solubility, thermal properties, viscosity and X-ray analysis were also studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=synthesis" title="synthesis">synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=characterization" title=" characterization"> characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=new%20polyesters" title=" new polyesters"> new polyesters</a>, <a href="https://publications.waset.org/abstracts/search?q=chemistry" title=" chemistry"> chemistry</a> </p> <a href="https://publications.waset.org/abstracts/5559/synthesis-and-characterization-of-new-polyesters-based-on-diarylidene-1-methyl-4-piperidone" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5559.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">458</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2888</span> Synthesis and Antimicrobial Profile of Newer Schiff Bases and Thiazolidinone Derivatives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20K.%20Fuloria">N. K. Fuloria</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Fuloria"> S. Fuloria</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Gupta"> R. Gupta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Esterification of p-bromo-m-cresol offered 2-(4-bromo-3-methyl phenoxy)acetate (1), which was hydrazinated to yield 2-(4-bromo-3-methyl phenoxy)aceto hydrazide (2). Compound (2) was reacted with different aromatic aldehydes to yield N-(substituted benzylidiene)-2-(4-bromo-3-methyl phenoxy)acetamide(3a-c). Cyclization of compound (3a-c) with thioglycolic acid yielded 2-(4-bromo-3-methylphenoxy)-N-(4-oxo-2-arylthiazolidin-3-yl) acetamide (4a-c). The newly synthesized compounds were characterized on the basis of spectral studies and evaluated for antibacterial and antifungal activities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=imines" title="imines">imines</a>, <a href="https://publications.waset.org/abstracts/search?q=thiazolidinone" title=" thiazolidinone"> thiazolidinone</a>, <a href="https://publications.waset.org/abstracts/search?q=schiff%20base" title=" schiff base"> schiff base</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial" title=" antimicrobial"> antimicrobial</a> </p> <a href="https://publications.waset.org/abstracts/17411/synthesis-and-antimicrobial-profile-of-newer-schiff-bases-and-thiazolidinone-derivatives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17411.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">446</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2887</span> Improvement of Thermal Stability in Ethylene Methyl Acrylate Composites for Gasket Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pemika%20Ketsuwan">Pemika Ketsuwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Pitt%20Supaphol"> Pitt Supaphol</a>, <a href="https://publications.waset.org/abstracts/search?q=Manit%20Nithitanakul"> Manit Nithitanakul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A typical used of ethylene methyl acrylate (EMA) gasket is in the manufacture of optical lens, and often, they are deteriorated rapidly due to high temperature during the process. The objective of this project is to improve the thermal stability of the EMA copolymer gasket by preparing EMA with cellulose and silica composites. Hydroxy propyl methyl cellulose (HPMC) and Carboxy methyl cellulose (CMC) were used in preparing of EMA/cellulose composites and fumed silica (SiO2) was used in preparing EMA/silica composites with different amounts of filler (3, 5, 7, 10, 15 wt.%), using a twin screw extruder at 160 °C and the test specimens were prepared by the injection molding machine. The morphology and dispersion of fillers in the EMA matrix were investigated by field emission scanning electron microscopy (FESEM). The thermal stability of the composite was determined by thermal gravimetric analysis (TGA), and differential scanning calorimeter (DSC). Mechanical properties were evaluated by tensile testing. The developed composites were found to enhance thermal and mechanical properties when compared to that of the EMA copolymer alone. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ethylene%20methyl%20acrylate" title="ethylene methyl acrylate">ethylene methyl acrylate</a>, <a href="https://publications.waset.org/abstracts/search?q=HPMC" title=" HPMC"> HPMC</a>, <a href="https://publications.waset.org/abstracts/search?q=Silica" title=" Silica"> Silica</a>, <a href="https://publications.waset.org/abstracts/search?q=Thermal%20stability" title=" Thermal stability"> Thermal stability</a> </p> <a href="https://publications.waset.org/abstracts/124859/improvement-of-thermal-stability-in-ethylene-methyl-acrylate-composites-for-gasket-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/124859.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">122</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2886</span> Detection of Heroin and Its Metabolites in Urine Samples: A Chemiluminescence Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sonu%20Gandhi">Sonu Gandhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Neena%20Capalash"> Neena Capalash</a>, <a href="https://publications.waset.org/abstracts/search?q=Prince%20Sharma"> Prince Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Raman%20Suri"> C. Raman Suri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A sensitive chemiluminescence immunoassay (CIA) for heroin and its major metabolites is reported. The method is based on the competitive reaction of horseradish peroxidase (HRP)-labeled anti-MAM antibody and free drug in spiked urine samples. A hapten-protein conjugate was synthesized by using acidic derivative of monoacetyl morphine (MAM) coupled to carrier protein BSA and was used as an immunogen for the generation of anti-MAM (monoacetyl morphine) antibody. A high titer of antibody (1:64,0000) was obtained and the relative affinity constant (Kaff) of antibody was 3.1×107 l/mol. Under the optimal conditions, linear range and reactivity for heroin, mono acetyl morphine (MAM), morphine and codeine were 0.08, 0.09, 0.095 and 0.092 ng/mL respectively. The developed chemiluminescence inhibition assay could detect heroin and its metabolites in standard and urine samples up to 0.01 ng/ml. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heroin" title="heroin">heroin</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=chemiluminescence%20immunoassay" title=" chemiluminescence immunoassay"> chemiluminescence immunoassay</a>, <a href="https://publications.waset.org/abstracts/search?q=horse%20radish%20peroxidase" title=" horse radish peroxidase "> horse radish peroxidase </a> </p> <a href="https://publications.waset.org/abstracts/44063/detection-of-heroin-and-its-metabolites-in-urine-samples-a-chemiluminescence-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44063.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">270</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=methyl%20cycle%20metabolites&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=methyl%20cycle%20metabolites&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=methyl%20cycle%20metabolites&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=methyl%20cycle%20metabolites&page=5">5</a></li> <li class="page-item"><a class="page-link" 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