{"id":22989,"date":"2025-07-30T06:00:08","date_gmt":"2025-07-30T11:00:08","guid":{"rendered":"https:\/\/www.insta-pro.com\/blog\/strategie-commerciale-et-financement\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\/"},"modified":"2025-07-30T06:00:08","modified_gmt":"2025-07-30T11:00:08","slug":"extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses","status":"publish","type":"post","link":"https:\/\/instapro.spinuhost.com\/fr\/blog\/nutrition-et-technologies\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\/","title":{"rendered":"Extrusion \u00e0 sec \u00e0 haut cisaillement pour le colza, le lin et d&rsquo;autres graines ol\u00e9agineuses"},"content":{"rendered":"<p>Les graines ol\u00e9agineuses telles que le colza, le lin et le tournesol sont class\u00e9es dans la cat\u00e9gorie des graines \u00e0 haute teneur en huile, contenant entre 30 % et 50 % d&rsquo;huile.<br \/>\n         En raison de cette teneur \u00e9lev\u00e9e en huile, les m\u00e9thodes de traitement standard ne suffisent pas \u00e0 extraire enti\u00e8rement leur huile pr\u00e9cieuse.<br \/>\n         Il faut plut\u00f4t adopter une approche en plusieurs \u00e9tapes, qui tire parti des atouts de la technologie d&rsquo;extrusion \u00e0 sec \u00e0 haut cisaillement et de pressage \u00e0 l&rsquo;huile d&rsquo;Insta-Pro.<\/p>\n<p>En r\u00e8gle g\u00e9n\u00e9rale, les graines \u00e0 forte teneur en huile doivent passer deux fois dans la presse \u00e0 huile, la mati\u00e8re premi\u00e8re \u00e9tant press\u00e9e une premi\u00e8re fois avant l\u2019extrusion.<br \/>\n         Toutefois, le proc\u00e9d\u00e9 peut varier en fonction du r\u00e9sultat souhait\u00e9 ou des recommandations de votre technicien en fonction des ingr\u00e9dients bruts utilis\u00e9s.<br \/>\n         Un deuxi\u00e8me pr\u00e9-pressage peut \u00eatre effectu\u00e9 pour mieux conditionner les graines, en particulier lorsqu&rsquo;il s&rsquo;agit de vari\u00e9t\u00e9s \u00e0 forte teneur en humidit\u00e9 ou en huile.<br \/>\n         Cette \u00e9tape permet de r\u00e9duire la charge sur l&rsquo;extrudeuse et d&rsquo;am\u00e9liorer la r\u00e9gularit\u00e9 du d\u00e9bit sans endommager les graines.<\/p>\n<p>La principale pr\u00e9caution \u00e0 prendre dans ce proc\u00e9d\u00e9 est d&rsquo;\u00e9viter d&rsquo;obtenir une consistance p\u00e2teuse ou semi-liquide, qui pourrait obstruer la presse et r\u00e9duire son efficacit\u00e9.<br \/>\n         En divisant l&rsquo;extraction de l&rsquo;huile en plusieurs \u00e9tapes, on obtient une r\u00e9cup\u00e9ration maximale de l&rsquo;huile.<\/p>\n<p>Apr\u00e8s le pressage initial, le tourteau partiellement d\u00e9graiss\u00e9 est envoy\u00e9 dans l&rsquo;extrudeuse.<br \/>\n         L&rsquo;extrusion \u00e0 sec \u00e0 haut cisaillement rompt les cellules huileuses suppl\u00e9mentaires tout en cuisant et en conditionnant le tourteau.<br \/>\n         Cette \u00e9tape est imm\u00e9diatement suivie d&rsquo;un deuxi\u00e8me passage dans la presse, o\u00f9 l&rsquo;huile restante est r\u00e9cup\u00e9r\u00e9e sous pression contr\u00f4l\u00e9e.<\/p>\n<p>Apr\u00e8s l&rsquo;extrusion, une derni\u00e8re \u00e9tape de pressage est effectu\u00e9e afin d&rsquo;extraire l&rsquo;huile r\u00e9siduelle qui reste dans le tourteau.<br \/>\n         Cette derni\u00e8re \u00e9tape utilise g\u00e9n\u00e9ralement un r\u00e9glage de bride plus serr\u00e9 et un profil de vis plus agressif afin de maximiser le rendement en huile.<br \/>\n         La temp\u00e9rature, la teneur en humidit\u00e9 des graines et le temps de s\u00e9jour sont \u00e9troitement surveill\u00e9s tout au long du proc\u00e9d\u00e9 afin d&rsquo;\u00e9viter toute d\u00e9gradation de la qualit\u00e9 de l&rsquo;huile et d&rsquo;assurer l&rsquo;efficacit\u00e9 m\u00e9canique.<\/p>\n<p>Dans tous les syst\u00e8mes ExPress\u00ae, y compris ceux utilis\u00e9s pour les graines \u00e0 forte teneur en huile, un syst\u00e8me de convoyeur ventil\u00e9 correctement con\u00e7u est essentiel.<br \/>\n         Nous concevons ces convoyeurs sp\u00e9cialement pour permettre l&rsquo;\u00e9vacuation de la condensation et de la vapeur g\u00e9n\u00e9r\u00e9es pendant l&rsquo;extrusion.<br \/>\n         Sans cette ventilation, l&rsquo;humidit\u00e9 qui s&rsquo;accumule peut entra\u00eener un glissement dans la presse, ce qui r\u00e9duit consid\u00e9rablement la r\u00e9cup\u00e9ration d&rsquo;huile.<\/p>\n<p>Des adaptations suppl\u00e9mentaires, telles que des chambres d&rsquo;alimentation cal\u00e9es sur la presse, emp\u00eachent les graines plus petites de tomber pr\u00e9matur\u00e9ment \u00e0 travers les barreaux de la cage, garantissant ainsi un d\u00e9bit efficace.<\/p>\n<p>Enfin, comme pour les autres proc\u00e9d\u00e9s de transformation des graines ol\u00e9agineuses, le produit final doit \u00eatre refroidi et broy\u00e9 apr\u00e8s l&rsquo;extrusion afin d&rsquo;\u00eatre pr\u00eat pour le stockage ou la transformation ult\u00e9rieure.<br \/>\n         En mettant en \u0153uvre les \u00e9tapes appropri\u00e9es lors du traitement de certaines graines ol\u00e9agineuses, les transformateurs peuvent optimiser le rendement en huile tout en pr\u00e9servant l&rsquo;int\u00e9grit\u00e9 des \u00e9quipements et la qualit\u00e9 des produits, ce qui leur permet de tirer davantage de valeur de chaque lot.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les graines ol\u00e9agineuses telles que le colza, le lin et le tournesol sont class\u00e9es dans la cat\u00e9gorie des graines \u00e0 haute teneur en huile, contenant entre 30 % et 50 % d&rsquo;huile. En raison de cette teneur \u00e9lev\u00e9e en huile, les m\u00e9thodes de traitement standard ne suffisent pas \u00e0 extraire enti\u00e8rement leur huile pr\u00e9cieuse. Il [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":4802,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8610,7181],"tags":[669,8904,638,550,732],"class_list":["post-22989","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ingenierie-et-procede-dextrusion","category-nutrition-et-technologies","tag-ingredients-fr","tag-oil-press-fr","tag-procede-express-fr","tag-produits-extrudes-fr","tag-oilseed-processing-fr"],"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>Extrusion \u00e0 sec \u00e0 haut cisaillement pour le colza, le lin et d&#039;autres graines ol\u00e9agineuses - Insta-Pro<\/title>\n<meta name=\"description\" content=\"En raison de leur forte teneur en huile, le traitement standard ne suffit pas \u00e0 extraire enti\u00e8rement l&#039;huile pr\u00e9cieuse contenue dans ces graines. 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Il faut plut\u00f4t adopter une approche en plusieurs \u00e9tapes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/instapro.spinuhost.com\/fr\/blog\/nutrition-et-technologies\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\/\" \/>\n<meta property=\"og:site_name\" content=\"Insta-Pro\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/instaprointernational\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-30T11:00:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.insta-pro.com\/wp-content\/uploads\/2015\/08\/InstaProOilSeedsGroup2_SquareEdit2-e1448310342518.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"998\" \/>\n\t<meta property=\"og:image:height\" content=\"514\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Kinoti Kaburu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@InstaProInt\" \/>\n<meta name=\"twitter:site\" content=\"@InstaProInt\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/\"},\"author\":{\"name\":\"Kinoti Kaburu\",\"@id\":\"https:\\\/\\\/insta-pro.spinudev.com\\\/en\\\/#\\\/schema\\\/person\\\/b851361d776d9afd413199455f2cb778\"},\"headline\":\"Extrusion \u00e0 sec \u00e0 haut cisaillement pour le colza, le lin et d&rsquo;autres graines ol\u00e9agineuses\",\"datePublished\":\"2025-07-30T11:00:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/\"},\"wordCount\":635,\"publisher\":{\"@id\":\"https:\\\/\\\/insta-pro.spinudev.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/instapro.spinuhost.com\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/InstaProOilSeedsGroup2_SquareEdit2-e1448310342518.jpg\",\"keywords\":[\"Ingr\u00e9dients\",\"Oil press\",\"Proc\u00e9d\u00e9 ExPress\",\"Produits extrud\u00e9s\",\"Transformation des ol\u00e9agineux\"],\"articleSection\":[\"Ing\u00e9nierie et proc\u00e9d\u00e9 d\u2019extrusion\",\"Nutrition et Technologies\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/\",\"url\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/\",\"name\":\"Extrusion \u00e0 sec \u00e0 haut cisaillement pour le colza, le lin et d'autres graines ol\u00e9agineuses - Insta-Pro\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/insta-pro.spinudev.com\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/instapro.spinuhost.com\\\/fr\\\/blog\\\/nutrition-et-technologies\\\/extrusion-a-sec-a-haut-cisaillement-pour-le-colza-le-lin-et-dautres-graines-oleagineuses\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/instapro.spinuhost.com\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/InstaProOilSeedsGroup2_SquareEdit2-e1448310342518.jpg\",\"datePublished\":\"2025-07-30T11:00:08+00:00\",\"description\":\"En raison de leur forte teneur en huile, le traitement standard ne suffit pas \u00e0 extraire enti\u00e8rement l'huile pr\u00e9cieuse contenue dans ces graines. 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