{"id":22994,"date":"2016-03-15T01:51:59","date_gmt":"2016-03-15T01:51:59","guid":{"rendered":"https:\/\/www.bioanalyt.com\/stories\/lait-les-tests-de-vitamines-ne-doivent-pas-prendre-une-eternite\/"},"modified":"2016-03-15T01:51:59","modified_gmt":"2016-03-15T01:51:59","slug":"lait-les-tests-de-vitamines-ne-doivent-pas-prendre-une-eternite","status":"publish","type":"stories","link":"https:\/\/www.bioanalyt.com\/fr\/stories\/lait-les-tests-de-vitamines-ne-doivent-pas-prendre-une-eternite\/","title":{"rendered":"Lait : les tests de vitamines ne doivent pas prendre une \u00e9ternit\u00e9"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><h2>L&rsquo;analyse de la vitamine A en toute simplicit\u00e9<\/h2>\n<p><iframe src=\"https:\/\/www.youtube.com\/embed\/ueHl5qxG0k8?rel=0&amp;controls=0&amp;showinfo=0\" width=\"100%\" height=\"475\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><\/iframe><\/p>\n<p>Gr\u00e2ce \u00e0 la m\u00e9thode portable innovante <a href=\"https:\/\/www.bioanalyt.com\/products\/icheck-fluoro-and-iex-mila\" target=\"_blank\" rel=\"noopener noreferrer\">iCheck Fluoro<\/a>, l&rsquo;analyse des vitamines est devenue plus accessible et n&rsquo;est plus li\u00e9e \u00e0 un laboratoire. Comment cela se passe-t-il ? Notre nouvelle vid\u00e9o, cr\u00e9\u00e9e par des designers berlinois, en dit long. Il suffit de cliquer sur l&rsquo;image ci-dessus pour la regarder. Bonne lecture !    <\/p>\n<h3>Le lait est souvent enrichi &#8211; pourquoi ?<\/h3>\n<p>Le lait entier est naturellement un aliment riche en nutriments. Il contient des quantit\u00e9s importantes de vitamine A, un micronutriment essentiel pour la vue et le d\u00e9veloppement. Les vitamines B, D, E, K et C sont pr\u00e9sentes en moindre quantit\u00e9. Lors de la production de lait \u00e9cr\u00e9m\u00e9 ou de lait en poudre, la vitamine A et d&rsquo;autres compos\u00e9s liposolubles sont \u00e9limin\u00e9s en m\u00eame temps que les mati\u00e8res grasses, ce qui r\u00e9duit la valeur nutritionnelle du lait. Pour reconstituer les nutriments perdus au cours de la transformation, le lait est souvent enrichi en vitamines A et D. En outre, la teneur en vitamines du lait entier peut varier consid\u00e9rablement en fonction des habitudes alimentaires du b\u00e9tail. Par exemple, en \u00e9t\u00e9, lorsque le b\u00e9tail broute des p\u00e2turages frais, la teneur en vitamines peut \u00eatre trois fois plus \u00e9lev\u00e9e qu&rsquo;en hiver, lorsque le b\u00e9tail se nourrit de fourrage sec. Les vitamines sont rajout\u00e9es au lait liquide ou en poudre \u00e0 teneur r\u00e9duite en mati\u00e8re grasse sous forme de pr\u00e9m\u00e9lange sec ou d&rsquo;huile. La mesure de la teneur en vitamines tout au long de la cha\u00eene de valeur, du lait cru au produit fini, peut contribuer \u00e0 garantir un produit nutritif.      <\/p>\n<h3>Une pr\u00e9cision de niveau laboratoire<\/h3>\n<p>Une \u00e9tude r\u00e9cente men\u00e9e par des chercheurs de l&rsquo;IRD a compar\u00e9 iCheck Fluoro \u00e0 la HPLC, la m\u00e9thode de r\u00e9f\u00e9rence. Les r\u00e9sultats ont montr\u00e9 que la nouvelle m\u00e9thode est aussi sensible que l&rsquo;HPLC et parfois plus sensible*. Lire l&rsquo;article complet <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25639130\" target=\"_blank\" rel=\"noopener noreferrer\">ici<\/a>.  <\/p>\n<p style=\"text-align: center;\"><strong>R\u00e9cup\u00e9ration de la vitamine A dans le lait obtenu avec iCheck Fluoro et HPLC<\/strong><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-9377\" src=\"https:\/\/www.bioanalyt.com\/wp-content\/uploads\/2016\/03\/Vitamin-A-1.png\" alt=\"\" width=\"800\" height=\"550\" srcset=\"https:\/\/www.bioanalyt.com\/wp-content\/uploads\/2016\/03\/Vitamin-A-1.png 800w, https:\/\/www.bioanalyt.com\/wp-content\/uploads\/2016\/03\/Vitamin-A-1-600x413.png 600w, https:\/\/www.bioanalyt.com\/wp-content\/uploads\/2016\/03\/Vitamin-A-1-300x206.png 300w, https:\/\/www.bioanalyt.com\/wp-content\/uploads\/2016\/03\/Vitamin-A-1-768x528.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: left;\">*<em>Laillou A, Renaud C, Berger J, Moench-Pfanner R, Fontan L, Avallone S : Evaluation d&rsquo;un appareil portable pour quantifier la vitamine A dans les aliments enrichis (farine, sucre et lait) pour le contr\u00f4le de qualit\u00e9. Food Nutr Bull.  35(4):449-57, 2014.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gr\u00e2ce \u00e0 la m\u00e9thode portable innovante iCheck Fluoro, l&rsquo;analyse des vitamines est devenue plus accessible et n&rsquo;est plus li\u00e9e \u00e0 un laboratoire.<\/p>\n","protected":false},"author":10,"featured_media":19103,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1241,1013,990,1001],"tags":[1242,1015,992],"class_list":["post-22994","stories","type-stories","status-publish","has-post-thumbnail","hentry","category-analyse-de-la-vitamine-a","category-blog-fr","category-fortification-des-aliments","category-general-fr","tag-lait","tag-tests-alimentaires","tag-vitamine-a"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Lait : les tests de vitamines ne doivent pas prendre une \u00e9ternit\u00e9 - Bioanalyt<\/title>\n<meta name=\"description\" content=\"Gr\u00e2ce \u00e0 la m\u00e9thode portable innovante iCheck Fluoro, l&#039;analyse des vitamines est devenue plus accessible et n&#039;est plus li\u00e9e \u00e0 un laboratoire.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bioanalyt.com\/fr\/stories\/lait-les-tests-de-vitamines-ne-doivent-pas-prendre-une-eternite\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lait : les tests de vitamines ne doivent pas prendre une \u00e9ternit\u00e9 - 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