{"id":13324,"date":"2019-08-08T04:00:05","date_gmt":"2019-08-08T09:00:05","guid":{"rendered":"https:\/\/www.insta-pro.com\/blog\/non-classe\/quest-ce-que-le-degommage\/"},"modified":"2026-01-07T13:30:21","modified_gmt":"2026-01-07T19:30:21","slug":"quest-ce-que-le-degommage","status":"publish","type":"post","link":"https:\/\/instapro.spinuhost.com\/fr\/blog\/ingenierie-maintenance\/quest-ce-que-le-degommage\/","title":{"rendered":"Qu\u2019est-ce que le d\u00e9gommage\u00a0?"},"content":{"rendered":"<p>Le proc\u00e9d\u00e9 ExPress\u00ae produit une huile de haute qualit\u00e9 et tr\u00e8s nutritive qui peut servir de source d\u2019\u00e9nergie \u00e0 de nombreuses esp\u00e8ces d\u2019animaux diff\u00e9rentes.\u00a0 La valeur de l\u2019huile ExPress\u00ae brute peut \u00eatre augment\u00e9e par diverses m\u00e9thodes, comme indiqu\u00e9 dans un <a href=\"https:\/\/www.insta-pro.com\/en\/blog\/nutritionandtechnologies\/understanding-the-various-types-of-oil-processing\/\">pr\u00e9c\u00e9dent blog<\/a>.\u00a0 La d\u00e9gommage est un moyen \u00e9conomique d\u2019\u00e9liminer les gommes pr\u00e9sentes dans l\u2019huile, afin d\u2019obtenir une huile brute d\u00e9gomm\u00e9e pouvant \u00eatre vendue sur le march\u00e9 mondial.\u00a0 Penchons-nous sur ce que sont les gommes, et sur les raisons et fa\u00e7ons de les retirer de l\u2019huile.<\/p>\n<h3><strong>Que sont les gommes\u00a0?<\/strong><\/h3>\n<p>Le terme \u00ab\u00a0gommes\u00a0\u00bb est couramment utilis\u00e9 pour les phospholipides.\u00a0 Les phospholipides sont divers compos\u00e9s solides et peuvent \u00eatre soit hydrophiles (capables de se m\u00e9langer et de se lier \u00e0 de l\u2019eau) soit hydrophobes (ne pouvant pas se m\u00e9langer ni se lier \u00e0 de l\u2019eau).\u00a0 Toutes les huiles brutes contiennent des gommes qui doivent \u00eatre retir\u00e9es pour pouvoir vendre l\u2019huile pour un usage alimentaire.\u00a0 Si les phospholipides ne sont pas retir\u00e9s, les temp\u00e9ratures \u00e9lev\u00e9es auxquelles est soumise l\u2019huile \u00e0 la cuisson peut provoquer des probl\u00e8mes de qualit\u00e9.\u00a0 Par exemple, si vous utilisez, pour frire des aliments, de l\u2019huile de soja brute telle qu\u2019elle sort de la presse \u00e0 huile, de la mousse et de l\u2019\u00e9cume se forment, ce qui la rend trop instable pour cet usage.<\/p>\n<h3><strong>D\u00e9gommage \u00e0 l\u2019eau<\/strong><\/h3>\n<p>Les phospholipides hydrophiles peuvent \u00eatre \u00e9limin\u00e9s par un processus appel\u00e9 d\u00e9gommage \u00e0 l\u2019eau.\u00a0 Pour commencer, l\u2019huile est soigneusement m\u00e9lang\u00e9e \u00e0 de l\u2019eau chaude.\u00a0 L\u2019eau et l\u2019huile doivent \u00eatre toutes les deux chaudes pour favoriser la fluidit\u00e9 et les liaisons entre mol\u00e9cules (c\u2019est-\u00e0-dire pour r\u00e9duire la viscosit\u00e9).\u00a0 Les mol\u00e9cules d\u2019eau se lient aux gommes hydrophiles et pour constituer des particules dont la masse est sup\u00e9rieure \u00e0 celle des gommes seules.\u00a0 Ces particules peuvent ensuite \u00eatre \u00e9limin\u00e9es par un filtre-presse ou une centrifugeuse verticale \u00e0 disques superpos\u00e9s.\u00a0 La quantit\u00e9 d\u2019eau utilis\u00e9e varie en fonction de la quantit\u00e9 de gommes pr\u00e9sentes dans l\u2019huile.<\/p>\n<h3><strong>D\u00e9gommage chimique<\/strong><\/h3>\n<p>Le d\u00e9gommage \u00e0 l\u2019eau ne permet de retirer que les gommes hydrophiles.\u00a0 En cas de d\u00e9gommage \u00e0 l\u2019eau, il peut arriver que la quantit\u00e9 finale de gomme (phosphore) soit sup\u00e9rieure \u00e0 ce qui est souhait\u00e9.\u00a0 C\u2019est un \u00e9l\u00e9ment important lorsqu\u2019il faut respecter certaines normes commerciales mondiales.\u00a0 Dans ce cas, il peut \u00eatre n\u00e9cessaire de proc\u00e9der \u00e0 un d\u00e9gommage chimique.\u00a0 G\u00e9n\u00e9ralement, on se sert d\u2019acide phosphorique pour d\u00e9composer ces gommes hydrophobes, afin qu\u2019elles puissent ensuite \u00eatre \u00e9limin\u00e9es efficacement dans une centrifugeuse.<\/p>\n<h3><strong>Apr\u00e8s le d\u00e9gommage<\/strong><\/h3>\n<p>Le processus de d\u00e9gommage est une premi\u00e8re \u00e9tape dans le processus de raffinage,\u00a0 qui implique le d\u00e9gommage, la d\u00e9coloration et la d\u00e9sodorisation de l\u2019huile.\u00a0 Le r\u00e9sultat final est une huile enti\u00e8rement raffin\u00e9e (RDD\u00a0: raffin\u00e9e, d\u00e9color\u00e9e et d\u00e9sodoris\u00e9e).\u00a0 De plus, le d\u00e9gommage permet \u00e9galement de produire de la l\u00e9cithine, ce qui accro\u00eet la valeur des gommes.\u00a0 \u00c0 mesure que les processus se multiplient, les co\u00fbts en capital augmentent. C\u2019est pourquoi il convient de bien justifier ses d\u00e9cisions avant de proc\u00e9der \u00e0 la mise en place de ces op\u00e9rations.\u00a0 Pour les questions \u00e0 ce sujet, nous avons \u00e9tabli un partenariat avec Alfa Laval.\u00a0 En tant que leader mondial du secteur, nous serons ravis d\u2019organiser pour vous un entretien avec eux afin de discuter de tous vos besoins en mati\u00e8re de transformation de l\u2019huile.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le proc\u00e9d\u00e9 ExPress\u00ae produit une huile de haute qualit\u00e9 et tr\u00e8s nutritive qui peut servir de source d\u2019\u00e9nergie \u00e0 de nombreuses esp\u00e8ces d\u2019animaux diff\u00e9rentes.\u00a0 La valeur de l\u2019huile ExPress\u00ae brute peut \u00eatre augment\u00e9e par diverses m\u00e9thodes, comme indiqu\u00e9 dans un pr\u00e9c\u00e9dent blog.\u00a0 La d\u00e9gommage est un moyen \u00e9conomique d\u2019\u00e9liminer les gommes pr\u00e9sentes dans l\u2019huile, afin [&hellip;]<\/p>\n","protected":false},"author":68,"featured_media":12098,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7177],"tags":[5769,8398],"class_list":["post-13324","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ingenierie-maintenance","tag-degommage","tag-clarification-de-lhuile"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Qu\u2019est-ce que le d\u00e9gommage\u00a0? - Insta-Pro<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/instapro.spinuhost.com\/fr\/blog\/ingenierie-maintenance\/quest-ce-que-le-degommage\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" 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