{"id":23589,"date":"2015-02-03T10:46:14","date_gmt":"2015-02-03T10:46:14","guid":{"rendered":"https:\/\/www.bioanalyt.com\/stories\/arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a\/"},"modified":"2026-03-30T09:22:31","modified_gmt":"2026-03-30T09:22:31","slug":"arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a","status":"publish","type":"stories","link":"https:\/\/www.bioanalyt.com\/fr\/stories\/arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a\/","title":{"rendered":"Arbuste le plus jaune : manioc biofortifi\u00e9 \u00e0 la provitamine A"},"content":{"rendered":"
<\/div>

Le d\u00e9fi<\/h3>\n

La vision de HarvestPlus<\/a> est de r\u00e9duire la malnutrition infantile de 30 % en Afrique d’ici 2020. Le manioc est un arbuste riche en amidon dont les racines riches en hydrates de carbone constituent un aliment de base en Afrique de l’Ouest. Le projet HarvestPlus de l’Institut international d’agriculture tropicale (IITA)<\/a> utilise la s\u00e9lection de masse pour augmenter la provitamine A (b\u00eata-carot\u00e8ne) dans les racines de manioc afin de lutter contre la malnutrition, mais le processus implique la s\u00e9lection de milliers de semis. Une fois qu’une racine est arrach\u00e9e du champ, elle doit \u00eatre analys\u00e9e dans les heures qui suivent pour qu’une d\u00e9cision soit prise quant \u00e0 la s\u00e9lection de la tige \u00e0 planter, faute de quoi la tige se dess\u00e8che au bout de quelques jours et ne survivra pas \u00e0 la replantation. Avec un laboratoire qui ne pouvait fournir des r\u00e9sultats qu’en quelques jours et pour des centaines d’\u00e9chantillons, l’objectif de HarvestPlus semblait lointain. <\/p>\n

La solution<\/strong><\/h3>\n

Le Dr. Maroya du Centre International de la Pomme de Terre a rencontr\u00e9 BioAnalyt en 2011 et une solution a commenc\u00e9 \u00e0 se mat\u00e9rialiser. Suite \u00e0 sa publication sur la mesure des carot\u00e9no\u00efdes dans le manioc, le Dr Peter Kulakow et Elizabeth Parkes se sont associ\u00e9s \u00e0 BioAnalyt en 2012 pour mettre en \u0153uvre iCheck Carotene<\/a>, une m\u00e9thode d’analyse rapide et adapt\u00e9e au terrain pour la d\u00e9termination du b\u00eata-carot\u00e8ne dans le manioc frais et transform\u00e9. Parall\u00e8lement au d\u00e9veloppement d’iCheck, BioAnalyt contribue \u00e9galement \u00e0 la formation, au conseil technique, au d\u00e9veloppement de protocoles et de mat\u00e9riaux de r\u00e9f\u00e9rence pour le programme HarvestPlus. <\/p>\n

\u00ab\u00a0Il est tr\u00e8s important de s’assurer que nous disposons de donn\u00e9es de qualit\u00e9, car c’est sur la base de ces mesures que nous d\u00e9cidons de la s\u00e9lection de la descendance et des techniques de s\u00e9lection \u00e0 mettre en \u0153uvre\u00a0\u00bb
\nElizabeth Parkes, s\u00e9lectionneuse de manioc, HarvestPlus<\/p><\/blockquote>\n

Le r\u00e9sultat<\/h3>\n

iCheck Carotene permet une d\u00e9tection plus rapide et plus rentable du b\u00eatacarot\u00e8ne dans le manioc. En identifiant les prog\u00e9nitures ou clones de manioc les plus riches en vitamine A, BioAnalyt aide HarvestPlus \u00e0 int\u00e9grer le plus grand nombre possible de micronutriments dans le r\u00e9gime alimentaire de la population, tout en permettant aux agriculteurs locaux d’acc\u00e9der plus facilement \u00e0 des vari\u00e9t\u00e9s \u00e0 haut rendement et riches en vitamine A. <\/p>\n

Pour en savoir plus sur la mani\u00e8re de mesurer les nutriments dans une plante de manioc enti\u00e8re, cliquez ici.<\/a>
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iCheck Carot\u00e8ne<\/strong><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Mesure les carot\u00e9no\u00efdes totaux dans les aliments, les boissons et les fluides biologiques.<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tRegarder \u00e0 l'int\u00e9rieur<\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

HarvestPlus s’est associ\u00e9 \u00e0 BioAnalyt pour surmonter le goulot d’\u00e9tranglement que constitue la lenteur des tests de laboratoire dans la s\u00e9lection du manioc. Gr\u00e2ce \u00e0 iCheck Carotene, les chercheurs ont rapidement identifi\u00e9 les vari\u00e9t\u00e9s de manioc riches en vitamine A sur le terrain, ce qui a permis d’acc\u00e9l\u00e9rer les d\u00e9cisions de s\u00e9lection et d’offrir des cultures plus nutritives aux agriculteurs et aux communaut\u00e9s dans toute l’Afrique. <\/p>\n","protected":false},"author":3,"featured_media":23438,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[990,1062],"tags":[1009,1035,996,1152,1039,993,1268],"class_list":["post-23589","stories","type-stories","status-publish","has-post-thumbnail","hentry","category-fortification-des-aliments","category-pleins-feux-sur-les-partenaires","tag-applications-fr","tag-beta-carotene-fr","tag-bioanalyt-fr","tag-biofortification-fr","tag-icheck-carotene-fr","tag-lenrichissement-des-aliments","tag-manioc"],"acf":[],"yoast_head":"\nArbuste le plus jaune : manioc biofortifi\u00e9 \u00e0 la provitamine A - Bioanalyt<\/title>\n<meta name=\"description\" content=\"Comment HarvestPlus et BioAnalyt ont utilis\u00e9 le test rapide du b\u00eata-carot\u00e8ne pour acc\u00e9l\u00e9rer la s\u00e9lection de manioc riche en vitamine A et lutter contre la malnutrition infantile en Afrique.\" \/>\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\/arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arbuste le plus jaune : manioc biofortifi\u00e9 \u00e0 la provitamine A - Bioanalyt\" \/>\n<meta property=\"og:description\" content=\"Comment HarvestPlus et BioAnalyt ont utilis\u00e9 le test rapide du b\u00eata-carot\u00e8ne pour acc\u00e9l\u00e9rer la s\u00e9lection de manioc riche en vitamine A et lutter contre la malnutrition infantile en Afrique.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bioanalyt.com\/fr\/stories\/arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a\/\" \/>\n<meta property=\"og:site_name\" content=\"Bioanalyt\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-30T09:22:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.bioanalyt.com\/wp-content\/uploads\/2026\/02\/IMG_1072_1-2048x1536-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1536\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.bioanalyt.com\/fr\/stories\/arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a\/\",\"url\":\"https:\/\/www.bioanalyt.com\/fr\/stories\/arbuste-le-plus-jaune-manioc-biofortifie-a-la-provitamine-a\/\",\"name\":\"Arbuste le plus jaune : manioc biofortifi\u00e9 \u00e0 la provitamine A - 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