{"id":40680,"date":"2026-05-19T15:21:00","date_gmt":"2026-05-19T13:21:00","guid":{"rendered":"https:\/\/oenobrands.com\/flotation-why-complete-depectinisation-matters\/"},"modified":"2026-06-08T10:38:30","modified_gmt":"2026-06-08T08:38:30","slug":"flotation-why-complete-depectinisation-matters","status":"publish","type":"post","link":"https:\/\/oenobrands.com\/fr\/flotation-why-complete-depectinisation-matters\/","title":{"rendered":"FLOTATION: Why complete depectinisation matters"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">La clarification par flottation est devenue une pratique courante dans de nombreuses caves gr\u00e2ce \u00e0 sa rapidit\u00e9 et \u00e0 son efficacit\u00e9 op\u00e9rationnelle.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Cependant, les performances de la flottation d\u00e9pendent de plusieurs facteurs, et l&rsquo;un des plus critiques est souvent sous-estim\u00e9 : le niveau de d\u00e9gradation des pectines avant la clarification.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les pectines augmentent la viscosit\u00e9 du jus et r\u00e9duisent l&rsquo;efficacit\u00e9 de la s\u00e9paration entre les phases solide et liquide. Une d\u00e9pectinisation incompl\u00e8te peut entra\u00eener une flottation plus lente, un volume de bourbes plus important et une r\u00e9cup\u00e9ration de jus plus faible. Une d\u00e9pectinisation incompl\u00e8te peut entra\u00eener une flottation plus lente, un volume de bourbes plus important et une r\u00e9cup\u00e9ration de jus plus faible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le proc\u00e9d\u00e9 de flottation repose sur la formation et la remont\u00e9e de flocs qui entra\u00eenent les particules en suspension vers la surface.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1105\" height=\"413\" src=\"https:\/\/oenobrands.com\/wp-content\/uploads\/2026\/05\/flotation-process-visual-news.png\" alt=\"flotation process visual news\" class=\"wp-image-40313\" srcset=\"https:\/\/oenobrands.com\/wp-content\/uploads\/2026\/05\/flotation-process-visual-news.png 1105w, https:\/\/oenobrands.com\/wp-content\/uploads\/2026\/05\/flotation-process-visual-news-300x112.png 300w, https:\/\/oenobrands.com\/wp-content\/uploads\/2026\/05\/flotation-process-visual-news-1024x383.png 1024w, https:\/\/oenobrands.com\/wp-content\/uploads\/2026\/05\/flotation-process-visual-news-768x287.png 768w\" sizes=\"auto, (max-width: 1105px) 100vw, 1105px\" \/><\/figure>\n<\/div><\/div>\n<\/div>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<h3 class=\"wp-block-heading has-text-align-center\">The role of pectolytic enzymes<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les enzymes pectolytiques sont utilis\u00e9es avant la flottation pour d\u00e9grader les pectines du raisin et r\u00e9duire la viscosit\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque la d\u00e9pectinisation est compl\u00e8te, les particules en suspension s&rsquo;agr\u00e8gent plus efficacement et peuvent \u00eatre s\u00e9par\u00e9es plus rapidement lors de la flottation. Cela am\u00e9liore les performances de clarification tout en contribuant \u00e0 pr\u00e9server la qualit\u00e9 des jus.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<h3 class=\"wp-block-heading has-text-align-center\">Pourquoi les performances des enzymes de flottation sont importantes<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Not all enzyme preparations perform equally under flotation conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les diff\u00e9rences d&rsquo;activit\u00e9 pectolytique peuvent influencer :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>flotation speed<\/li>\n\n\n\n<li>la compacit\u00e9 du chapeau de bourbes<\/li>\n\n\n\n<li>juice recovery<\/li>\n\n\n\n<li>la turbidit\u00e9 finale<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces param\u00e8tres ont un impact direct sur l&rsquo;efficacit\u00e9 de la cave et la fiabilit\u00e9 du proc\u00e9d\u00e9.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<h3 class=\"wp-block-heading has-text-align-center\">Mesurer la d\u00e9pectinisation avant la flottation<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Le suivi de la d\u00e9gradation des pectines avant la flottation reste le meilleur moyen de s\u00e9curiser les performances de clarification.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des tests simples de pectines permettent de d\u00e9terminer si l&rsquo;action enzymatique est termin\u00e9e et si le mo\u00fbt est pr\u00eat pour la flottation.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/oenobrands.com\/fr\/ressources-techniques\/test-pectine\/\">Test pectines<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\"><strong>Lire l&rsquo;article complet dans OENOBOOK 16<\/strong><\/h3>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"wp-block-paragraph\">Dans OENOBOOK 16, nous comparons les performances en flottation de diff\u00e9rentes pr\u00e9parations enzymatiques et analysons l&rsquo;impact d&rsquo;une d\u00e9pectinisation compl\u00e8te sur l&rsquo;efficacit\u00e9 de la clarification et la r\u00e9cup\u00e9ration des jus.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/oenobrands.com\/fr\/oenobook\/\">Oenobook 16<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div style=\"height:70px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Une flottation r\u00e9ussie commence bien avant l&rsquo;injection d&rsquo;azote. Une d\u00e9pectinisation compl\u00e8te est l&rsquo;un des facteurs cl\u00e9s influen\u00e7ant l&rsquo;efficacit\u00e9 de la clarification, la qualit\u00e9 des jus et le volume des bourbes.<\/p>\n","protected":false},"author":3,"featured_media":40679,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[6],"tags":[],"class_list":["post-40680","post","type-post","status-publish","format-standard","has-post-thumbnail","category-infos"],"acf":[],"_links":{"self":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts\/40680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/comments?post=40680"}],"version-history":[{"count":2,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts\/40680\/revisions"}],"predecessor-version":[{"id":40683,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts\/40680\/revisions\/40683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/media\/40679"}],"wp:attachment":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/media?parent=40680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/categories?post=40680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/tags?post=40680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}