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class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Indice" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Classificazione" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Classificazione"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Classificazione</span> </div> </a> <ul id="toc-Classificazione-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Polisaccaridi</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 73 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-73" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">73 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%AA%D8%B9%D8%AF%D8%AF_%D8%A7%D9%84%D8%B3%D9%83%D8%A7%D8%B1%D9%8A%D8%AF" title="متعدد السكاريد - arabo" lang="ar" hreflang="ar" data-title="متعدد السكاريد" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Polisac%C3%A1ridu" title="Polisacáridu - asturiano" lang="ast" hreflang="ast" data-title="Polisacáridu" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Heteropolisaxaridl%C9%99r" title="Heteropolisaxaridlər - azerbaigiano" lang="az" hreflang="az" data-title="Heteropolisaxaridlər" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D9%BE%D9%88%D9%84%DB%8C_%D8%B3%D8%A7%DA%A9%D8%A7%D8%B1%DB%8C%D8%AF" title="پولی ساکارید - South Azerbaijani" lang="azb" hreflang="azb" data-title="پولی ساکارید" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D1%96%D1%86%D1%83%D0%BA%D1%80%D1%8B%D0%B4%D1%8B" title="Поліцукрыды - bielorusso" lang="be" hreflang="be" data-title="Поліцукрыды" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D1%96%D1%86%D1%83%D0%BA%D1%80%D1%8B%D0%B4%D1%8B" title="Поліцукрыды - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Поліцукрыды" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D0%B8%D0%B7%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4" title="Полизахарид - bulgaro" lang="bg" hreflang="bg" data-title="Полизахарид" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AA%E0%A6%B2%E0%A6%BF%E0%A6%B8%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%95%E0%A6%BE%E0%A6%B0%E0%A6%BE%E0%A6%87%E0%A6%A1" title="পলিস্যাকারাইড - bengalese" lang="bn" hreflang="bn" data-title="পলিস্যাকারাইড" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Polisaharidi" title="Polisaharidi - bosniaco" lang="bs" hreflang="bs" data-title="Polisaharidi" data-language-autonym="Bosanski" data-language-local-name="bosniaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Polisac%C3%A0rid" title="Polisacàrid - catalano" lang="ca" hreflang="ca" data-title="Polisacàrid" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Polysacharidy" title="Polysacharidy - ceco" lang="cs" hreflang="cs" data-title="Polysacharidy" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Polysacarid" title="Polysacarid - gallese" lang="cy" hreflang="cy" data-title="Polysacarid" data-language-autonym="Cymraeg" data-language-local-name="gallese" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Polysakkarid" title="Polysakkarid - danese" lang="da" hreflang="da" data-title="Polysakkarid" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Polysaccharide" title="Polysaccharide - tedesco" lang="de" hreflang="de" data-title="Polysaccharide" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CE%BF%CE%BB%CF%85%CF%83%CE%B1%CE%BA%CF%87%CE%B1%CF%81%CE%AF%CF%84%CE%B7%CF%82" title="Πολυσακχαρίτης - greco" lang="el" hreflang="el" data-title="Πολυσακχαρίτης" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Polysaccharide" title="Polysaccharide - inglese" lang="en" hreflang="en" data-title="Polysaccharide" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Polisa%C4%A5arido" title="Polisaĥarido - esperanto" lang="eo" hreflang="eo" data-title="Polisaĥarido" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Polisac%C3%A1rido" title="Polisacárido - spagnolo" lang="es" hreflang="es" data-title="Polisacárido" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Pol%C3%BCsahhariidid" title="Polüsahhariidid - estone" lang="et" hreflang="et" data-title="Polüsahhariidid" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Polisakarido" title="Polisakarido - basco" lang="eu" hreflang="eu" data-title="Polisakarido" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D9%84%DB%8C%E2%80%8C%D8%B3%D8%A7%DA%A9%D8%A7%D8%B1%DB%8C%D8%AF" title="پلی‌ساکارید - persiano" lang="fa" hreflang="fa" data-title="پلی‌ساکارید" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Polysakkaridit" title="Polysakkaridit - finlandese" lang="fi" hreflang="fi" data-title="Polysakkaridit" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Polysaccharide" title="Polysaccharide - francese" lang="fr" hreflang="fr" data-title="Polysaccharide" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Polaisi%C3%BAicr%C3%ADd" title="Polaisiúicríd - irlandese" lang="ga" hreflang="ga" data-title="Polaisiúicríd" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Poilisacaraid" title="Poilisacaraid - gaelico scozzese" lang="gd" hreflang="gd" data-title="Poilisacaraid" data-language-autonym="Gàidhlig" data-language-local-name="gaelico scozzese" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Polisac%C3%A1rido" title="Polisacárido - galiziano" lang="gl" hreflang="gl" data-title="Polisacárido" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A8%D7%91-%D7%A1%D7%95%D7%9B%D7%A8" title="רב-סוכר - ebraico" lang="he" hreflang="he" data-title="רב-סוכר" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AC%E0%A4%B9%E0%A5%81%E0%A4%B6%E0%A4%B0%E0%A5%8D%E0%A4%95%E0%A4%B0%E0%A4%BE" title="बहुशर्करा - hindi" lang="hi" hreflang="hi" data-title="बहुशर्करा" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Polisaharidi" title="Polisaharidi - croato" lang="hr" hreflang="hr" data-title="Polisaharidi" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Poliszacharid" title="Poliszacharid - ungherese" lang="hu" hreflang="hu" data-title="Poliszacharid" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8A%D5%B8%D5%AC%D5%AB%D5%BD%D5%A1%D5%AD%D5%A1%D6%80%D5%AB%D5%A4%D5%B6%D5%A5%D6%80" title="Պոլիսախարիդներ - armeno" lang="hy" hreflang="hy" data-title="Պոլիսախարիդներ" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Polisakarida" title="Polisakarida - indonesiano" lang="id" hreflang="id" data-title="Polisakarida" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Polisakarido" title="Polisakarido - ido" lang="io" hreflang="io" data-title="Polisakarido" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Fj%C3%B6lsykra" title="Fjölsykra - islandese" lang="is" hreflang="is" data-title="Fjölsykra" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%A4%9A%E7%B3%96" title="多糖 - giapponese" lang="ja" hreflang="ja" data-title="多糖" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Polisakarida" title="Polisakarida - giavanese" lang="jv" hreflang="jv" data-title="Polisakarida" data-language-autonym="Jawa" data-language-local-name="giavanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9E%E1%83%9D%E1%83%9A%E1%83%98%E1%83%A1%E1%83%90%E1%83%A5%E1%83%90%E1%83%A0%E1%83%98%E1%83%93%E1%83%94%E1%83%91%E1%83%98" title="პოლისაქარიდები - georgiano" lang="ka" hreflang="ka" data-title="პოლისაქარიდები" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D0%B8%D1%81%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4%D1%82%D0%B5%D1%80" title="Полисахаридтер - kazako" lang="kk" hreflang="kk" data-title="Полисахаридтер" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%8B%A4%EB%8B%B9%EB%A5%98" title="다당류 - coreano" lang="ko" hreflang="ko" data-title="다당류" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D0%B8%D1%81%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4%D0%B4%D0%B5%D1%80" title="Полисахариддер - kirghiso" lang="ky" hreflang="ky" data-title="Полисахариддер" data-language-autonym="Кыргызча" data-language-local-name="kirghiso" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Polysacharide" title="Polysacharide - limburghese" lang="li" hreflang="li" data-title="Polysacharide" data-language-autonym="Limburgs" data-language-local-name="limburghese" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Polisacharidai" title="Polisacharidai - lituano" lang="lt" hreflang="lt" data-title="Polisacharidai" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Polisahar%C4%ABdi" title="Polisaharīdi - lettone" lang="lv" hreflang="lv" data-title="Polisaharīdi" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D0%B8%D1%81%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4" title="Полисахарид - macedone" lang="mk" hreflang="mk" data-title="Полисахарид" data-language-autonym="Македонски" data-language-local-name="macedone" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Polisakarida" title="Polisakarida - malese" lang="ms" hreflang="ms" data-title="Polisakarida" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Polysacharide" title="Polysacharide - olandese" lang="nl" hreflang="nl" data-title="Polysacharide" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Polysakkarid" title="Polysakkarid - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Polysakkarid" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Polysakkarid" title="Polysakkarid - norvegese bokmål" lang="nb" hreflang="nb" data-title="Polysakkarid" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Polisacarid" title="Polisacarid - occitano" lang="oc" hreflang="oc" data-title="Polisacarid" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Polisacharydy" title="Polisacharydy - polacco" lang="pl" hreflang="pl" data-title="Polisacharydy" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Polissacar%C3%ADdeo" title="Polissacarídeo - portoghese" lang="pt" hreflang="pt" data-title="Polissacarídeo" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Polizaharid%C4%83" title="Polizaharidă - rumeno" lang="ro" hreflang="ro" data-title="Polizaharidă" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D0%B8%D1%81%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4%D1%8B" title="Полисахариды - russo" lang="ru" hreflang="ru" data-title="Полисахариды" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Polisaharidi" title="Polisaharidi - serbo-croato" lang="sh" hreflang="sh" data-title="Polisaharidi" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Polysaccharide" title="Polysaccharide - Simple English" lang="en-simple" hreflang="en-simple" data-title="Polysaccharide" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Polysacharid" title="Polysacharid - slovacco" lang="sk" hreflang="sk" data-title="Polysacharid" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Polisaharid" title="Polisaharid - sloveno" lang="sl" hreflang="sl" data-title="Polisaharid" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Polisakaridet" title="Polisakaridet - albanese" lang="sq" hreflang="sq" data-title="Polisakaridet" data-language-autonym="Shqip" data-language-local-name="albanese" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D0%B8%D1%81%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4" title="Полисахарид - serbo" lang="sr" hreflang="sr" data-title="Полисахарид" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Polisakarida" title="Polisakarida - sundanese" lang="su" hreflang="su" data-title="Polisakarida" data-language-autonym="Sunda" data-language-local-name="sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Polysackarid" title="Polysackarid - svedese" lang="sv" hreflang="sv" data-title="Polysackarid" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%82%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AF%81%E0%AE%9A%E0%AF%8D%E0%AE%9A%E0%AE%B0%E0%AF%8D%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%B0%E0%AF%88" title="கூட்டுச்சர்க்கரை - tamil" lang="ta" hreflang="ta" data-title="கூட்டுச்சர்க்கரை" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AA%E0%B0%BE%E0%B0%B2%E0%B1%80%E0%B0%B6%E0%B0%BE%E0%B0%95%E0%B0%B0%E0%B1%88%E0%B0%A1%E0%B1%8D" title="పాలీశాకరైడ్ - telugu" lang="te" hreflang="te" data-title="పాలీశాకరైడ్" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9E%E0%B8%AD%E0%B8%A5%E0%B8%B4%E0%B9%81%E0%B8%8B%E0%B9%87%E0%B8%81%E0%B8%84%E0%B8%B2%E0%B9%84%E0%B8%A3%E0%B8%94%E0%B9%8C" title="พอลิแซ็กคาไรด์ - thailandese" lang="th" hreflang="th" data-title="พอลิแซ็กคาไรด์" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Polisakkarit" title="Polisakkarit - turco" lang="tr" hreflang="tr" data-title="Polisakkarit" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D1%96%D1%81%D0%B0%D1%85%D0%B0%D1%80%D0%B8%D0%B4%D0%B8" title="Полісахариди - ucraino" lang="uk" hreflang="uk" data-title="Полісахариди" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Polisaxaridlar" title="Polisaxaridlar - uzbeco" lang="uz" hreflang="uz" data-title="Polisaxaridlar" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Polysaccharide" title="Polysaccharide - vietnamita" lang="vi" hreflang="vi" data-title="Polysaccharide" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Polysaccharide" title="Polysaccharide - waray" lang="war" hreflang="war" data-title="Polysaccharide" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%A4%9A%E7%B3%96" title="多糖 - wu" lang="wuu" hreflang="wuu" data-title="多糖" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%A4%9A%E7%B3%96" title="多糖 - cinese" lang="zh" hreflang="zh" data-title="多糖" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/To-thn%CC%82g" title="To-thn̂g - min nan" lang="nan" hreflang="nan" data-title="To-thn̂g" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%A4%9A%E9%86%A3" title="多醣 - cantonese" lang="yue" hreflang="yue" data-title="多醣" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q134219#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Polisaccaridi" title="Vedi la voce [c]" accesskey="c"><span>Voce</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussione:Polisaccaridi" rel="discussion" title="Vedi le discussioni relative a questa pagina [t]" accesskey="t"><span>Discussione</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Cambia versione linguistica" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">italiano</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visite"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Polisaccaridi"><span>Leggi</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Polisaccaridi&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Polisaccaridi&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Polisaccaridi&action=history" title="Versioni precedenti di questa pagina [h]" accesskey="h"><span>Cronologia</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Strumenti</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Strumenti</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">nascondi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Altre opzioni" > <div class="vector-menu-heading"> Azioni </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Polisaccaridi"><span>Leggi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Polisaccaridi&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Polisaccaridi&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Polisaccaridi&action=history"><span>Cronologia</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generale </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciale:PuntanoQui/Polisaccaridi" title="Elenco di tutte le pagine che sono collegate a questa [j]" accesskey="j"><span>Puntano qui</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciale:ModificheCorrelate/Polisaccaridi" rel="nofollow" title="Elenco delle ultime modifiche alle pagine collegate a questa [k]" accesskey="k"><span>Modifiche correlate</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciale:PagineSpeciali" title="Elenco di tutte le pagine speciali [q]" accesskey="q"><span>Pagine speciali</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Polisaccaridi&oldid=138964785" title="Collegamento permanente a questa versione di questa pagina"><span>Link permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Polisaccaridi&action=info" title="Ulteriori informazioni su questa pagina"><span>Informazioni pagina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speciale:Cita&page=Polisaccaridi&id=138964785&wpFormIdentifier=titleform" title="Informazioni su come citare questa pagina"><span>Cita questa voce</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speciale:UrlShortener&url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FPolisaccaridi"><span>Ottieni URL breve</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speciale:QrCode&url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FPolisaccaridi"><span>Scarica codice QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Stampa/esporta </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speciale:Libro&bookcmd=book_creator&referer=Polisaccaridi"><span>Crea un libro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speciale:DownloadAsPdf&page=Polisaccaridi&action=show-download-screen"><span>Scarica come PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Polisaccaridi&printable=yes" title="Versione stampabile di questa pagina [p]" accesskey="p"><span>Versione stampabile</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In altri progetti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Polysaccharides" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q134219" title="Collegamento all'elemento connesso dell'archivio dati [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><p>I <b>polisaccaridi</b> costituiscono una classe di <a href="/wiki/Composto_organico" title="Composto organico">composti chimici organici</a> appartenente alla classe più ampia dei <a href="/wiki/Glucidi" title="Glucidi">glucidi</a> (detti anche <a href="/wiki/Glucidi" title="Glucidi">carboidrati</a>). Rispetto agli altri glucidi, sono caratterizzati da un gran numero di <a href="/wiki/Monomero" title="Monomero">unità ripetitive</a>, legate insieme per formare molecole grandi e complesse. Si parte da piccole catene lineari di un minimo di 10 unità ripetitive (sotto questo numero si parla di <a href="/wiki/Oligosaccaridi" title="Oligosaccaridi">oligosaccaridi</a>) per formare dei <b>polisaccaridi lineari</b>, come ad esempio la molecola della <a href="/wiki/Laminarina" title="Laminarina">laminarina</a> o dell'<a href="/wiki/Amilosio" title="Amilosio">amilosio</a>, fino ai cosiddetti <b>polisaccaridi ramificati</b> come, ad esempio, nella molecola del <a href="/wiki/Glicogeno" title="Glicogeno">glicogeno</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>In natura, i polisaccaridi si trovano comunemente nelle <a href="/wiki/Piante" class="mw-redirect" title="Piante">piante</a>, dove costituiscono dal 50% al 90% del loro peso secco, mentre negli <a href="/wiki/Animali" class="mw-redirect" title="Animali">animali</a> si trovano in quantità minori, ma la loro presenza è essenziale nella <a href="/wiki/Nutrizione" title="Nutrizione">nutrizione</a>, essenzialmente per costituire una funzione di scorta energetica. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Classificazione">Classificazione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Polisaccaridi&veaction=edit&section=1" title="Modifica la sezione Classificazione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Polisaccaridi&action=edit&section=1" title="Edit section's source code: Classificazione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Glycogen.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Glycogen.jpg/590px-Glycogen.jpg" decoding="async" width="590" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Glycogen.jpg/885px-Glycogen.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/6/6a/Glycogen.jpg 2x" data-file-width="1014" data-file-height="206" /></a><figcaption>Esempio di un (omo) polisaccaride, con lunghe catene lineari e talvolta una ramificazione, nell'es. appartenenti alla molecola del glicogeno</figcaption></figure> <p>Chimicamente, i polisaccaridi si suddividono in: </p> <ul><li><b><a href="/wiki/Omopolisaccaridi" class="mw-redirect" title="Omopolisaccaridi">Omopolisaccaridi</a></b>, la cui struttura chimica è una ripetizione <a href="/wiki/Polimero" title="Polimero">polimerica</a> di un'unica unità <a href="/wiki/Monosaccaride" class="mw-redirect" title="Monosaccaride">monosaccaride</a>; un importante <a href="/wiki/Omopolisaccaride" title="Omopolisaccaride">omopolisaccaride</a> è, ad esempio, il <a href="/wiki/Glicogeno" title="Glicogeno">glicogeno</a>, il quale, nel <a href="/wiki/Metabolismo" title="Metabolismo">metabolismo</a>, rappresenta una dinamica riserva di lunghe unità di <a href="/wiki/Glucosio" title="Glucosio">glucosio</a>, disposte in catene lineari sequenziali con legame α (1-4) per la maggior parte, e talvolta ramificate con legame α (1-6). Glucosio e glicogeno restano in equilibrio dinamico (<a href="/wiki/Omeostasi" title="Omeostasi">omeostasi</a> glucidica) al fine di partecipare al controllo della <a href="/wiki/Pressione_osmotica" title="Pressione osmotica">pressione osmotica</a>.</li> <li><b><a href="/wiki/Eteropolisaccaridi" class="mw-redirect" title="Eteropolisaccaridi">Eteropolisaccaridi</a></b>, cioè composti dall'unione di più <a href="/wiki/Monosaccaridi" title="Monosaccaridi">monosaccaridi</a> differenti, tramite dei <a href="/wiki/Legame_glicosidico" title="Legame glicosidico">legami glicosidici</a>. Un esempio di <a href="/wiki/Eteropolisaccaridi" class="mw-redirect" title="Eteropolisaccaridi">eteropolisaccaridi</a> sono i G.A.G., i (<a href="/wiki/Glicosaminoglicani" class="mw-redirect" title="Glicosaminoglicani">glicosaminoglicani</a>), costituiti da dei dimeri (cioè coppie di monosaccaridi diversi), che si ripetono in lunghissime sequenze polimeriche ad altissimo peso molecolare (macromolecole).</li></ul> <p>A seconda della loro funzione, i polisaccaridi si possono classificare in: </p> <ul><li><b>polisaccaridi di riserva</b>, dove fungono da scorta energetica di glucosio, per il <a href="/wiki/Metabolismo" title="Metabolismo">metabolismo</a> di <a href="/wiki/Vegetali" class="mw-redirect" title="Vegetali">vegetali</a> ed <a href="/wiki/Animali" class="mw-redirect" title="Animali">animali</a> (ad esempio gli <a href="/wiki/Amido" title="Amido">amidi</a> o il <a href="/wiki/Glicogeno" title="Glicogeno">glicogeno</a>), essendo questi di forma polimerica meno soggetta agli effetti osmotici; in àmbito <a href="/wiki/Nutrizione" title="Nutrizione">nutrizionale</a>, questi prendono anche il nome di <a href="/wiki/Glucidi" title="Glucidi">carboidrati</a> o <a href="/wiki/Glucidi" title="Glucidi">zuccheri</a> di tipo complesso, partendo da vari tipi di <a href="/wiki/Amido" title="Amido">amidi</a>, di costituzione molecolare relativamente semplice, contenuti principalmente in <a href="/wiki/Patate" class="mw-redirect" title="Patate">patate</a> e <a href="/wiki/Oryza_sativa" title="Oryza sativa">riso</a>, fino a forme più complesse presenti nei <a href="/wiki/Triticum" title="Triticum">farinacei</a>, quali ad esempio <a href="/wiki/Pane" title="Pane">pane</a> e <a href="/wiki/Pasta" title="Pasta">pasta</a>. L'apporto calorico è comunque uguale a quello dei glucidi semplici (circa 4 kcal/g), ma il metabolismo per digerirli è molto più lento.</li> <li><b>polisaccaridi di sostegno</b>, per permettere la struttura di un tessuto, soprattutto di un <a href="/wiki/Piante" class="mw-redirect" title="Piante">vegetale</a> (ad es. la <a href="/wiki/Cellulosa" title="Cellulosa">cellulosa</a> degli alberi, l'<a href="/wiki/Agar_agar" title="Agar agar">agar agar</a> e la <a href="/wiki/Chitina" title="Chitina">chitina</a>)</li> <li><b>polisaccaridi specializzati</b>, per determinate funzioni chimico-biologiche di adesione e di riconoscimento chimico (per esempio l'<a href="/w/index.php?title=Eparinsolfato&action=edit&redlink=1" class="new" title="Eparinsolfato (la pagina non esiste)">eparinsolfato</a>, che ha un <i>pattern</i> di <a href="/w/index.php?title=Solfatazione&action=edit&redlink=1" class="new" title="Solfatazione (la pagina non esiste)">solfatazione</a> facilmente riconoscibile dagli <a href="/wiki/Enzimi" class="mw-redirect" title="Enzimi">enzimi</a>), oppure le <a href="/wiki/Glicoproteine" class="mw-redirect" title="Glicoproteine">glicoproteine</a>, ecc.</li></ul> <p>Poiché il <a href="/wiki/Peso_molecolare" class="mw-redirect" title="Peso molecolare">peso molecolare</a> dei polisaccaridi è molto variabile, per la maggior parte è impossibile fissarne un peso o una formula. Il <a href="/wiki/Peso_molecolare" class="mw-redirect" title="Peso molecolare">peso molecolare</a> può variare da decine di migliaia a dei valori che superano il milione di <a href="/wiki/Unit%C3%A0_di_massa_atomica" title="Unità di massa atomica">Dalton</a> (1 Dalton= 1 <a href="/wiki/Unit%C3%A0_di_massa_atomica" title="Unità di massa atomica">uma</a>=1,660*10<sup>−27</sup> <a href="/wiki/Chilogrammo" title="Chilogrammo">kg</a>). Le proprietà dei polisaccaridi sono, per molti aspetti, il contrario di quelle che caratterizzano altri <a href="/wiki/Glucidi" title="Glucidi">glucidi</a>. Essi, per esempio, sono quasi <a href="/wiki/Solubilit%C3%A0" title="Solubilità">insolubili</a> in <a href="/wiki/Acqua" title="Acqua">acqua</a> e negli <a href="/wiki/Etanolo" title="Etanolo">alcoli</a>, e ciò dipende dal fatto che le grosse molecole dei polisaccaridi si idratano solo in superficie, e in maniera insufficiente a permettere la loro solubilizzazione. </p><p>I polisaccaridi non danno un risultato sbagliato alla <a href="/wiki/Reazione_di_Fehling" class="mw-redirect" title="Reazione di Fehling">reazione di Fehling</a>: anche in questo caso l'estremità riducente di una lunga catena polisaccaridica, pur reagendo con il <a href="/wiki/Reattivo_di_Fehling" class="mw-redirect" title="Reattivo di Fehling">reattivo di Fehling</a>, non darà una <a href="/w/index.php?title=Reazione_cromatica&action=edit&redlink=1" class="new" title="Reazione cromatica (la pagina non esiste)">reazione cromatica</a> sufficientemente intensa da poter essere percepita dai nostri <a href="/wiki/Occhi" class="mw-redirect" title="Occhi">occhi</a> perché il numero delle funzioni aldeidiche libere (una per ogni molecola di <i>polisaccaride</i>) è, per unità di volume, molto bassa. I polisaccaridi si possono formare sia da <a href="/wiki/Pentoso" class="mw-redirect" title="Pentoso">pentosi</a> che dagli <a href="/wiki/Esosi" class="mw-redirect" title="Esosi">esosi</a>; nel primo caso prendono il nome di <b>pentosani</b>, nel secondo di <b>esosani</b>. </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Polisaccaridi&veaction=edit&section=2" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Polisaccaridi&action=edit&section=2" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.chimica-online.it/download/glucidi/polisaccaridi.htm">Polisaccaridi</a></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Polisaccaridi&veaction=edit&section=3" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Polisaccaridi&action=edit&section=3" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Monosaccaridi" title="Monosaccaridi">Monosaccaridi</a></li> <li><a href="/wiki/Disaccaridi" title="Disaccaridi">Disaccaridi</a></li> <li><a href="/wiki/Oligosaccaridi" title="Oligosaccaridi">Oligosaccaridi</a></li> <li><a href="/wiki/Glicani" title="Glicani">Glicani</a></li> <li><a href="/wiki/Xilani" title="Xilani">Xilani</a></li> <li><a href="/wiki/Zuccheri" class="mw-redirect" title="Zuccheri">Zuccheri</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Polisaccaridi&veaction=edit&section=4" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Polisaccaridi&action=edit&section=4" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Polysaccharides"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Polysaccharides?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Polysaccharides?uselang=it">polisaccaride</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Polisaccaridi&veaction=edit&section=5" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Polisaccaridi&action=edit&section=5" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite id="CITEREFEnciclopedia_della_scienza_e_della_tecnica" class="citation libro" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.treccani.it/enciclopedia/polisaccaridi_(Enciclopedia-della-Scienza-e-della-Tecnica)/"><span style="font-style:italic;">polisaccaridi</span></a>, in <span style="font-style:italic;">Enciclopedia della scienza e della tecnica</span>, <a href="/wiki/Istituto_dell%27Enciclopedia_Italiana" title="Istituto dell'Enciclopedia Italiana">Istituto dell'Enciclopedia Italiana</a>, 2007-2008.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q134219#P10037" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite id="CITEREFSapere.it" class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.sapere.it/enciclopedia/polisaccàride.html"><span style="font-style:italic;">polisaccàride</span></a>, su <span style="font-style:italic;">sapere.it</span>, <a href="/wiki/De_Agostini" title="De Agostini">De Agostini</a>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q134219#P6706" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite id="CITEREFBritannica.com" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.britannica.com/science/polysaccharide"><span style="font-style:italic;">polysaccharide</span></a>, su <span style="font-style:italic;"><a href="/wiki/Enciclopedia_Britannica" title="Enciclopedia Britannica">Enciclopedia Britannica</a></span>, Encyclopædia Britannica, Inc.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q134219#P1417" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://goldbook.iupac.org/P04752.html"><span style="font-style:italic;">IUPAC Gold Book, "polysaccharides"</span></a>, su <span style="font-style:italic;">goldbook.iupac.org</span>.</cite></li></ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid #aaa;clear:both;margin:auto;padding:2px;width:100%}.mw-parser-output .navbox th{padding-left:1em;padding-right:1em;text-align:center}.mw-parser-output .navbox>tbody>tr:first-child>th{background:#ccf;font-size:90%;width:100%;color:var(--color-base,black)}.mw-parser-output .navbox_navbar{float:left;margin:0;padding:0 10px 0 0;text-align:left;width:6em}.mw-parser-output .navbox_title{font-size:110%}.mw-parser-output .navbox_abovebelow{background:#ddf;font-size:90%;font-weight:normal}.mw-parser-output .navbox_group{background:#ddf;font-size:90%;padding:0 10px;white-space:nowrap}.mw-parser-output .navbox_list{font-size:90%;width:100%}.mw-parser-output .navbox_list a{white-space:nowrap}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_odd{background:#fdfdfd;color:var(--color-base,black)}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_even{background:#f7f7f7;color:var(--color-base,black)}.mw-parser-output .navbox a.mw-selflink{color:var(--color-base,black)}.mw-parser-output .navbox_center{text-align:center}.mw-parser-output .navbox .navbox_image{padding-left:7px;vertical-align:middle;width:0}.mw-parser-output .navbox+.navbox{margin-top:-1px}.mw-parser-output .navbox .mw-collapsible-toggle{font-weight:normal;text-align:right;width:7em}body.skin--responsive .mw-parser-output .navbox_image img{max-width:none!important}.mw-parser-output .subnavbox{margin:-3px;width:100%}.mw-parser-output .subnavbox_group{background:#e6e6ff;padding:0 10px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-night .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-night .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-os .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-os .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}</style><table class="navbox mw-collapsible mw-collapsed noprint metadata" id="navbox-Glucidi"><tbody><tr><th colspan="2"><div class="navbox_navbar"><div class="noprint plainlinks" style="background-color:transparent; 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title="Xilani">Xilani</a>)<b> ·</b> <a href="/wiki/Acido_alginico" title="Acido alginico">Acido alginico</a></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r140554510">.mw-parser-output .CdA{border:1px solid #aaa;width:100%;margin:auto;font-size:90%;padding:2px}.mw-parser-output .CdA th{background-color:#f2f2f2;font-weight:bold;width:20%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .CdA th{background-color:#202122}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .CdA th{background-color:#202122}}</style><table class="CdA"><tbody><tr><th><a href="/wiki/Aiuto:Controllo_di_autorit%C3%A0" title="Aiuto:Controllo di autorità">Controllo di autorità</a></th><td><a href="/wiki/Nuovo_soggettario" title="Nuovo soggettario">Thesaurus BNCF</a> <span class="uid"><a 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font-size:80%"><abbr title="francese">FR</abbr></span>) <a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb120497262">cb120497262</a> <a rel="nofollow" class="external text" href="https://data.bnf.fr/ark:/12148/cb120497262">(data)</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Biblioteca_nazionale_di_Israele" title="Biblioteca nazionale di Israele">J9U</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr>, <abbr title="ebraico">HE</abbr></span>) <a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007563141905171">987007563141905171</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Biblioteca_della_Dieta_nazionale_del_Giappone" title="Biblioteca della Dieta nazionale del Giappone">NDL</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr>, <abbr 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