{"id":50401,"date":"2021-03-22T16:16:50","date_gmt":"2021-03-22T15:16:50","guid":{"rendered":"https:\/\/agrovin.com\/?p=50401"},"modified":"2025-12-24T12:46:28","modified_gmt":"2025-12-24T10:46:28","slug":"polizaharide-ce-sunt-si-la-ce-servesc","status":"publish","type":"post","link":"https:\/\/agrovin.com\/ro\/polizaharide-ce-sunt-si-la-ce-servesc\/","title":{"rendered":"Polizaharide: ce sunt \u0219i la ce servesc"},"content":{"rendered":"<p>Polizaharidele, \u00eempreun\u0103 cu polifenolii sunt cheia \u0219i \u00eencuietoarea corpului vinului. Cre\u0219terea con\u021binutului de polizaharide \u0219i manoproteine contribuie la \u00eembun\u0103t\u0103\u021birea senza\u021biilor corpului si a volumului \u00een gur\u0103. \u00cen plus, prin interac\u021biunea acestora cu compu\u0219ii fenolici din vinul ro\u0219u, <strong>diminueaz\u0103 senza\u021bia de astrigen\u021b\u0103 si am\u0103r\u0103ciune a frac\u021biei tanice<\/strong>. Pe de alt\u0103 parte, polizaharidele \u0219i taninurile \u00eempreun\u0103 cresc percep\u021bia aromatic\u0103, prelungind gustul si contribuind la stabilitatea vinului.<!--more--><\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Ce sunt polizaharidele \u0219i la ce servesc?<\/strong><\/h2>\n<p>Polizaharidele sunt <strong>hidra\u021bi de carbon complexi forma\u021bi dintr-un num\u0103r mare de zaharuri simpli<\/strong>, care sunt lega\u021bi prin <strong>leg\u0103turi glicozidice<\/strong>. La fel, polizaharidele joac\u0103 un <strong>rol important \u00een formarea structurilor organice \u0219i a \u021bes\u0103turilor<\/strong> de sus\u021binere, \u00een special la plante.<\/p>\n<p>\u00cen oenologie, polizaharidele utilizate provin \u00een principiu din dou\u0103 origini:<\/p>\n<ul>\n<li><strong>Microbiologice<\/strong> (drojdii)<\/li>\n<li><strong>Legume<\/strong> (gume arabe)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><strong>C\u00e2te tipuri de polizaharide exist\u0103?<\/strong><\/h2>\n<p>Deoarece am avansat, polizaharidele utilizate \u00een oenologie au dou\u0103 origini principale, microbiologice \u0219i vegetale, prima fiind cea mai important\u0103.<\/p>\n<p>&nbsp;<\/p>\n<h3><strong>Polizaharide de drojdie<\/strong><\/h3>\n<p>Peretele celular al drojdiei este o structur\u0103 fundamental\u0103 pentru modelarea celulelor, precum \u0219i pentru protejarea lor \u0219i controlul permeabilit\u0103\u021bii acestora. Acest perete, care reprezint\u0103 20-30% din greutatea total\u0103 a celulei, este compus din diverse polizaharide complexe, dintre care se remarc\u0103 urm\u0103toarele <strong>\u03b2-glucani, manoproteine \u0219i chitin\u0103.<\/strong><\/p>\n<p>\u00cen cadrul grupului de polizaharide comerciale, <strong>sunt disponibili mai mul\u021bi deriva\u021bi de drojdie<\/strong>, a c\u0103ror compozi\u021bie se modific\u0103 considerabil:<\/p>\n<ul>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/super-bouquet-2\/\"><strong>Drojdii inactive<\/strong><\/a><strong>: <\/strong>au un con\u021binut relativ sc\u0103zut de polizaharide. Acestea necesit\u0103 un timp de contact \u00eendelungat pentru a se produce eliberarea polizaharidelor.<\/li>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/superbouquet-mn\/\"><strong>Crustele de drojdie<\/strong><\/a><strong>: <\/strong>este vorba doar peretele celular de drojdie. Acestea au un con\u021binut mai mare de polizaharide \u0219i un timp de contact mai scurt necesar pentru eliberarea polizaharidei, precum si o frac\u021biune mai mare de manoproteine \u00een compara\u021bie cu drojdia inactiv\u0103.<\/li>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/manoplus\/\"><strong>Manoproteina purificat\u0103<\/strong><\/a><strong>: <\/strong>reprezint\u0103 frac\u021bia solubil\u0103 a polizaharidelor, adic\u0103 manoproteina, care are un efect imediat asupra vinului.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><strong>Ce func\u021bie au \u00een vin?<\/strong><\/h2>\n<p>Polizaharidele au func\u021bii diferite \u00een vin. Pe de o parte, \u00eembun\u0103t\u0103\u021besc percep\u021bia organoleptic\u0103, deoarece <strong>contribuie la \u00eembun\u0103t\u0103\u021birea senza\u021biilor corpului si volumului \u00een gur\u0103<\/strong>, reduc\u00e2nd astrigen\u021ba \u0219i sporind persisten\u021ba \u0219i echilibrul acesteia. Pe de alt\u0103 parte, stabilizeaz\u0103 frac\u021biunea aromatic\u0103 \u0219i \u00eent\u00e2rzie percep\u021bia acesteia (postgust). De asemenea, confer\u0103 stabilitate tartric\u0103 (blocheaz\u0103 reac\u021biile de cristalizare), proteine \u0219i substan\u021be colorante (interac\u021biune cu taninuri \u0219i proteine).<\/p>\n<p>Polizaharidele din vinul finit se adaug\u0103 drojdiei de fermenta\u021bie atunci c\u00e2nd se <strong>dore\u0219te cre\u0219terea particip\u0103rii acestor molecule la senza\u021biile s\u0103rate ale vinului<\/strong>.<strong>\u00a0<\/strong>De asemenea, acestea pot \u00eenlocui drojdia de fermenta\u021bie \u00een acele cazuri \u00een care calitatea senzorial\u0103 sau microbiologic\u0103 necesar\u0103 (arome de redcere, aciditate volatil\u0103 ridicat\u0103, din struguri la sf\u00e2r\u0219itul recolt\u0103rii, la opriri de fermentare, recolte nes\u0103n\u0103toase etc.).<\/p>\n<p>O alt\u0103 func\u021bie a polizaharidelor are loc \u00een timpul preg\u0103tirii \u00eembutelierii vinurilor, c\u00e2nd este <strong>necesar\u0103 o cre\u0219tere a structurii \u0219i a corpului<\/strong>, pentru a netezi o anumit\u0103 astringen\u021b\u0103 tainic\u0103 sau pentru a atenua impactul excesiv al lemnului. \u00cen timpul celei de-a doua fermenta\u021bii \u00een sticl\u0103, prin cre\u0219terea volumului de drojdie se m\u0103re\u0219te efectul \u00eemb\u0103tr\u00e2nirii \u00een stive, \u00eembun\u0103t\u0103\u021bind astfel senza\u021biile de volum \u00een gur\u0103, intensitatea aromatic\u0103 \u0219i contribuie la o mai mare persisten\u021b\u0103 a spumei.<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p><strong><em>Lectur\u0103 recomandat\u0103:<\/em><\/strong><em>\u00a0<\/em><a href=\"https:\/\/agrovin.com\/ro\/puterea-taninurilor-in-vin\/\"><em>Care sunt beneficiile taninurilor rafinate?<\/em><\/a><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h2><strong>Polizaharide \u0219i manoproteine Agrovin<\/strong><\/h2>\n<p>Dup\u0103 cum am v\u0103zut, at\u00e2t manoproteinele c\u00e2t \u0219i alte polizaharide de drojdie se dovedesc a fi foarte pozitive pentru calitatea vinului \u0219i este posibil s\u0103 <strong>m\u0103reasc\u0103 con\u021binutul s\u0103u indirect, folosind tulpini de drojdie<\/strong> produc\u0103toare de manoproteine sau aplic\u00e2nd enzime glucanazice, precum \u0219i aplicarea prepareatelor organice \u00een ace\u0219ti compu\u0219i.<\/p>\n<p>\u00cen func\u021bie de ce dori\u021bi s\u0103 realiza\u021bi, pot fi utilizate urm\u0103toarele produse Agrovin:<\/p>\n<ul>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/super-bouquet-evolution\/\"><strong>SuperBouquet EVOLUTION<\/strong><\/a>: are un efect antioxidant pentru protejarea aromelor \u0219i \u00eent\u00e2rzierea evolu\u021biei vinurilor.<\/li>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/mano-arome\/\"><strong>MannoAROME<\/strong><\/a><strong>,\u00a0<\/strong><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/manocrom\/\"><strong>MannoCrom<\/strong><\/a><strong>\u00a0\u0219i<\/strong>\u00a0<a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/mano-blanc\/\"><strong>MannoBlanc<\/strong><\/a><strong>:<\/strong>\u00a0sunt utilizate \u00een fermenta\u021bia alcoolic\u0103 pentru a \u00eembun\u0103t\u0103\u021bi structura, stabiliza aroma \u0219i materiile colorante, din momentul transform\u0103rii mustului \u00een vin. Primele dou\u0103 produse sunt pentru vinificarea ro\u0219ie, \u00een timp ce MannoBlanc este utilizat pentru vinificarea alb\u0103.<\/li>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/super-bouquet-2\/\"><strong>SuperBouquet<\/strong><\/a><strong>\u00a0\u0219i\u00a0<\/strong><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/superbouquet-mn\/\"><strong>SuperBouquet MN<\/strong><\/a>: sunt folosite \u00een vinul finit \u0219i contribuie la \u00eembunat\u0103\u021birea caracteristicilor senzoriale ale vinului, lustruind taninurile agresive \u0219i cresc\u00e2nd senza\u021biile corpului \u0219i volumul \u00een gur\u0103.<\/li>\n<li><a href=\"https:\/\/agrovin.com\/ro\/produse-oenologice\/polizaharide-si-manoproteine\/manoplus\/\"><strong>MannoPLUS<\/strong><\/a>: este o manoprotein\u0103 pur\u0103 solubil\u0103 care se adaug\u0103 vinului finit \u00eenainte de ultima filtrare.<\/li>\n<\/ul>\n<p>Pentru mai multe informa\u021bii, contacta\u021bi-ne.<\/p>\n\t\t<div data-elementor-type=\"section\" data-elementor-id=\"121822\" class=\"elementor elementor-121822 elementor-121802\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7672ae6 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7672ae6\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-97607e9\" data-id=\"97607e9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d68ba3c elementor-align-left elementor-widget elementor-widget-button\" data-id=\"d68ba3c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/agrovin.com\/ro\/contactati\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contacta\u021bi-ne<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t\n","protected":false},"excerpt":{"rendered":"<p>Polizaharidele, \u00eempreun\u0103 cu polifenolii sunt cheia \u0219i \u00eencuietoarea corpului vinului. Cre\u0219terea con\u021binutului de polizaharide \u0219i manoproteine contribuie la \u00eembun\u0103t\u0103\u021birea senza\u021biilor corpului si a volumului \u00een gur\u0103. \u00cen plus, prin interac\u021biunea acestora cu compu\u0219ii fenolici din vinul ro\u0219u, diminueaz\u0103 senza\u021bia de astrigen\u021b\u0103 si am\u0103r\u0103ciune a frac\u021biei tanice. Pe de alt\u0103 parte, polizaharidele \u0219i taninurile \u00eempreun\u0103 cresc [&hellip;]<\/p>\n","protected":false},"author":359,"featured_media":49911,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3096,2082],"tags":[],"class_list":["post-50401","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rafinarea","category-solutii-oenologice"],"acf":[],"_links":{"self":[{"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/posts\/50401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/users\/359"}],"replies":[{"embeddable":true,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/comments?post=50401"}],"version-history":[{"count":4,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/posts\/50401\/revisions"}],"predecessor-version":[{"id":123811,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/posts\/50401\/revisions\/123811"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/media\/49911"}],"wp:attachment":[{"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/media?parent=50401"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/categories?post=50401"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agrovin.com\/ro\/wp-json\/wp\/v2\/tags?post=50401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}