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Search results for: Bahdja Guerfi

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class="col-md-9 mx-auto"> <form method="get" action="https://publications.waset.org/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="Bahdja Guerfi"> <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> 3</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Bahdja Guerfi</h1> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Characterization of Penicillin V Acid and Its Related Compounds by HPLC</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Bahdja%20Guerfi">Bahdja Guerfi</a>, <a href="https://publications.waset.org/search?q=N.%20Hadhoum"> N. Hadhoum</a>, <a href="https://publications.waset.org/search?q=I.%20Azouz"> I. Azouz</a>, <a href="https://publications.waset.org/search?q=M.%20Bendoumia"> M. Bendoumia</a>, <a href="https://publications.waset.org/search?q=S.%20Bouafia"> S. Bouafia</a>, <a href="https://publications.waset.org/search?q=F.%20Z.%20Hadjadj%20Aoul"> F. Z. Hadjadj Aoul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Background: &#39;Penicillin V&#39; is a narrow, bactericidal antibiotic of the beta-lactam family of the naturally occurring penicillin group. It is limited to infections due to the germs defined as sensitive. The objective of this work was to identify and to characterize Penicillin V acid and its related compounds by High-performance liquid chromatography (HPLC). Methods: Firstly phenoxymethylpenicillin was identified by an infrared absorption. The organoleptic characteristics, pH, and determination of water content were also studied. The dosage of Penicillin V acid active substance and the determination of its related compounds were carried on waters HPLC, equipped with a UV detector at 254 nm and Discovery HS C18 column (250 mm X 4.6 mm X 5 &micro;m) which is maintained at room temperature. The flow rate was about 1 ml per min. A mixture of water, acetonitrile and acetic acid (65:35:01) was used as mobile phase for phenoxyacetic acid &lsquo;impurity B&#39; and a mixture of water, acetonitrile and acetic acid (650:150:5.75) for the assay and 4-hydroxypenicillin V &#39;impurity D&#39;. Results: The identification of Penicillin V acid active substance and the evaluation of its chemical quality showed conformity with USP 35th edition. The Penicillin V acid content in the raw material is equal to 1692.22 UI/mg. The percentage content of phenoxyacetic acid and 4-hydroxypenicillin V was respectively: 0.035% and 0.323%. Conclusion: Through these results, we can conclude that the Penicillin V acid active substance tested is of good physicochemical quality.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Penicillin%20V%20acid" title="Penicillin V acid">Penicillin V acid</a>, <a href="https://publications.waset.org/search?q=characterization" title=" characterization"> characterization</a>, <a href="https://publications.waset.org/search?q=related%20substances" title=" related substances"> related substances</a>, <a href="https://publications.waset.org/search?q=HPLC." title=" HPLC."> HPLC.</a> </p> <a href="https://publications.waset.org/10008454/characterization-of-penicillin-v-acid-and-its-related-compounds-by-hplc" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10008454/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10008454/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10008454/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10008454/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10008454/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10008454/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10008454/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10008454/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10008454/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10008454/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10008454.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">1043</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Synthesis, Physicochemical Characterization and Study of the Antimicrobial Activity of Chlorobutanol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=H.%20Nadia">H. Nadia</a>, <a href="https://publications.waset.org/search?q=G.%20Bahdja"> G. Bahdja</a>, <a href="https://publications.waset.org/search?q=S.%20Thili%20Malha"> S. Thili Malha</a>, <a href="https://publications.waset.org/search?q=Y.%20Zahoua"> Y. Zahoua</a>, <a href="https://publications.waset.org/search?q=D.%20Taoufik"> D. Taoufik</a>, <a href="https://publications.waset.org/search?q=B.%20Mourad"> B. Mourad</a>, <a href="https://publications.waset.org/search?q=M.%20Marzouk"> M. Marzouk</a>, <a href="https://publications.waset.org/search?q=F.%20Z.%20Hadjadj%20Aoul"> F. Z. Hadjadj Aoul</a>, <a href="https://publications.waset.org/search?q=L.%20R.%20Mekacher"> L. R. Mekacher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Introduction and objectives: Chlorobutanol is a raw material, mainly used as an antiseptic and antimicrobial preservative in injectable and ophthalmic preparations. The main objective of our study was the synthesis and evaluation of the antimicrobial activity of chlorobutanol hemihydrates. Material and methods: Chlorobutanol was synthesized according to the nucleophilic addition reaction of chloroform to acetone, identified by an infrared absorption using Spectrum One FTIR spectrometer, melting point, Scanning electron microscopy and colorimetric reactions. The dosage of Carvedilol active substance was carried out by assaying the degradation products of chlorobutanol in a basic solution. The chlorobutanol obtained was subjected to bacteriological tests in order to study its antimicrobial activity. The antibacterial activity was evaluated against strains such as <em>Escherichia coli</em> (ATCC 25 922), Staphylococcus aureus (ATCC 25 923) and <em>Pseudomonas aeroginosa</em> (ATCC = American type culture collection). The antifungal activity was evaluated against human pathogenic fungal strains, such as <em>Candida albicans</em> and <em>Aspergillus niger</em> provided by the parasitology laboratory of the Hospital of Tizi-Ouzou, Algeria. Results and discussion: Chlorobutanol was obtained in an acceptable yield. The characterization tests of the product obtained showed a white and crystalline appearance (confirmed by scanning electron microscopy), solubilities (in water, ethanol and glycerol), and a melting temperature in accordance with the requirements of the European pharmacopoeia. The colorimetric reactions were directed towards the presence of a trihalogenated carbon and an alcohol function. The spectral identification (IR) showed the presence of characteristic chlorobutanol peaks and confirmed the structure of the latter. The microbiological study revealed an antimicrobial effect on all strains tested (<em>Sataphylococcus aureus</em> (MIC = 1250 &micro;g/ml), <em>E. coli</em> (MIC = 1250 &micro;g/ml), <em>Pseudomonas aeroginosa</em> (MIC = 1250 &micro;g/ml), <em>Candida albicans</em> (MIC =2500 &micro;g/ml), <em>Aspergillus niger</em> (MIC =2500 &micro;g/ml)) with MIC values close to literature data. Conclusion: Thus, on the whole, the synthesized chlorobutanol satisfied the requirements of the European Pharmacopoeia, and possesses antibacterial and antifungal activity; nevertheless it is necessary to insist on the purification step of the product in order to eliminate the maximum impurities.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Antimicrobial%20agent" title="Antimicrobial agent">Antimicrobial agent</a>, <a href="https://publications.waset.org/search?q=bacterial%20and%20fungal%20strains" title=" bacterial and fungal strains"> bacterial and fungal strains</a>, <a href="https://publications.waset.org/search?q=chlorobutanol" title=" chlorobutanol"> chlorobutanol</a>, <a href="https://publications.waset.org/search?q=MIC." title=" MIC. "> MIC. </a> </p> <a href="https://publications.waset.org/10008716/synthesis-physicochemical-characterization-and-study-of-the-antimicrobial-activity-of-chlorobutanol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10008716/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10008716/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10008716/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10008716/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10008716/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10008716/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10008716/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10008716/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10008716/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10008716/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10008716.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">1906</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Synthesis, Physicochemical Characterization and Study of the Antimicrobial Activity of Chlorobutanol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=N.%20Hadhoum">N. Hadhoum</a>, <a href="https://publications.waset.org/search?q=B.%20Guerfi"> B. Guerfi</a>, <a href="https://publications.waset.org/search?q=T.%20M.%20Sider"> T. M. Sider</a>, <a href="https://publications.waset.org/search?q=Z.%20Yassa"> Z. Yassa</a>, <a href="https://publications.waset.org/search?q=T.%20Djerboua"> T. Djerboua</a>, <a href="https://publications.waset.org/search?q=M.%20Boursouti"> M. Boursouti</a>, <a href="https://publications.waset.org/search?q=M.%20Mamou"> M. Mamou</a>, <a href="https://publications.waset.org/search?q=F.%20Z.%20Hadjadj%20Aoul"> F. Z. Hadjadj Aoul</a>, <a href="https://publications.waset.org/search?q=L.%20R.%20Mekacher"> L. R. Mekacher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Introduction and objectives: Chlorobutanol is a raw material, mainly used as an antiseptic and antimicrobial preservative in injectable and ophthalmic preparations. The main objective of our study was the synthesis and evaluation of the antimicrobial activity of chlorobutanol hemihydrates. Material and methods: Chlorobutanol was synthesized according to the nucleophilic addition reaction of chloroform to acetone, identified by an infrared absorption using Spectrum One FTIR spectrometer, melting point, Scanning electron microscopy and colorimetric reactions. The dosage of carvedilol active substance was carried out by assaying the degradation products of chlorobutanol in a basic solution. The chlorobutanol obtained was subjected to bacteriological tests in order to study its antimicrobial activity. The antibacterial activity was evaluated against strains such as <em>Escherichia coli</em> (ATCC 25 922), <em>Staphylococcus aureus</em> (ATCC 25 923) and <em>Pseudomonas aeroginosa</em> (ATCC = American type culture collection). The antifungal activity was evaluated against human pathogenic fungal strains, such as <em>Candida albicans</em> and <em>Aspergillus niger</em> provided by the parasitology laboratory of the Hospital of Tizi-Ouzou, Algeria. Results and discussion: Chlorobutanol was obtained in an acceptable yield. The characterization tests of the product obtained showed a white and crystalline appearance (confirmed by scanning electron microscopy), solubilities (in water, ethanol and glycerol), and a melting temperature in accordance with the requirements of the European pharmacopoeia. The colorimetric reactions were directed towards the presence of a trihalogenated carbon and an alcohol function. The spectral identification (IR) showed the presence of characteristic chlorobutanol peaks and confirmed the structure of the latter. The microbiological study revealed an antimicrobial effect on all strains tested (<em>Sataphylococcus aureus</em> (MIC = 1250 &micro;g/ml), <em>E. coli</em> (MIC = 1250 &micro;g/ml), <em>Pseudomonas aeroginosa</em> (MIC = 1250 &micro;g/ml), <em>Candida albicans</em> (MIC =2500 &micro;g/ml), <em>Aspergillus niger</em> (MIC =2500 &micro;g/ml)) with MIC values close to literature data. Conclusion: Thus, on the whole, the synthesized chlorobutanol satisfied the requirements of the European Pharmacopoeia, and possesses antibacterial and antifungal activity; nevertheless, it is necessary to insist on the purification step of the product in order to eliminate the maximum impurities.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Antimicrobial%20agent" title="Antimicrobial agent">Antimicrobial agent</a>, <a href="https://publications.waset.org/search?q=bacterial%20and%20fungal%20strains" title=" bacterial and fungal strains"> bacterial and fungal strains</a>, <a href="https://publications.waset.org/search?q=chlorobutanol" title=" chlorobutanol"> chlorobutanol</a>, <a href="https://publications.waset.org/search?q=MIC." title=" MIC. "> MIC. </a> </p> <a href="https://publications.waset.org/10009786/synthesis-physicochemical-characterization-and-study-of-the-antimicrobial-activity-of-chlorobutanol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10009786/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10009786/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10009786/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10009786/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10009786/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10009786/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10009786/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10009786/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10009786/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10009786/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10009786.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">945</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a href="https://waset.org/disciplines">Disciplines</a></li> <li><a href="https://waset.org/conferences">Conferences</a></li> <li><a href="https://waset.org/conference-programs">Conference Program</a></li> <li><a href="https://waset.org/committees">Committees</a></li> <li><a href="https://publications.waset.org">Publications</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Research <li><a href="https://publications.waset.org/abstracts">Abstracts</a></li> <li><a href="https://publications.waset.org">Periodicals</a></li> <li><a href="https://publications.waset.org/archive">Archive</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Open Science <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Philosophy.pdf">Open Science Philosophy</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Award.pdf">Open Science Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Society-Open-Science-and-Open-Innovation.pdf">Open Innovation</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Postdoctoral-Fellowship-Award.pdf">Postdoctoral Fellowship Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Scholarly-Research-Review.pdf">Scholarly Research Review</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Support <li><a href="https://waset.org/page/support">Support</a></li> <li><a href="https://waset.org/profile/messages/create">Contact Us</a></li> <li><a href="https://waset.org/profile/messages/create">Report Abuse</a></li> </ul> </div> </div> </div> </div> </div> <div class="container text-center"> <hr style="margin-top:0;margin-bottom:.3rem;"> <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" class="text-muted small">Creative Commons Attribution 4.0 International License</a> <div id="copy" class="mt-2">&copy; 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