{"id":50924,"date":"2025-08-29T13:09:48","date_gmt":"2025-08-29T11:09:48","guid":{"rendered":"https:\/\/interreg-sudoe.eu\/noticia-proyecto\/sabias-que-el-momento-de-la-vendimia-no-se-elige-al-azar\/"},"modified":"2026-02-16T16:06:07","modified_gmt":"2026-02-16T15:06:07","slug":"sabias-que-el-momento-de-la-vendimia-no-se-elige-al-azar","status":"publish","type":"noticia-proyecto","link":"https:\/\/interreg-sudoe.eu\/fr\/noticia-proyecto\/sabias-que-el-momento-de-la-vendimia-no-se-elige-al-azar\/","title":{"rendered":"Saviez-vous que le moment des vendanges n&rsquo;est pas choisi au hasard ?"},"content":{"rendered":"<p>Le moment des vendanges est d\u00e9termin\u00e9 une fois que la veraison (transition entre la croissance du raisin et le d\u00e9but du processus de maturation, qui implique un changement de couleur du fruit) a eu lieu. Des contr\u00f4les p\u00e9riodiques sont effectu\u00e9s pour conna\u00eetre l&rsquo;\u00e9volution des diff\u00e9rents param\u00e8tres impliqu\u00e9s dans la qualit\u00e9, qui d\u00e9termineront le moment optimal des vendanges.<\/p>\n<p>Pour cela, 100 baies sont pr\u00e9lev\u00e9es au hasard et repr\u00e9sentatives de l&rsquo;ensemble de la parcelle, selon un sch\u00e9ma en zigzag, dans des zones ensoleill\u00e9es et ombrag\u00e9es et \u00e0 diff\u00e9rents endroits de chaque grappe. Les analyses comprennent la mesure du degr\u00e9 d&rsquo;alcool probable (\u00baBrix, avec un r\u00e9fractom\u00e8tre), du pH, de l&rsquo;acide malique, de l&rsquo;acide tartrique, de l&rsquo;acidit\u00e9 totale, des polyph\u00e9nols totaux et de l&rsquo;\u00e9tat sanitaire du raisin (\u00e9valu\u00e9 \u00e0 l&rsquo;aide de l&rsquo;acide gluconique) avec un analyseur \u0153nologique Biosystems SPICA.<\/p>\n<p><a href=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio-.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-50919 size-large\" src=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio--1024x768.jpg\" alt=\"\" width=\"800\" height=\"600\" srcset=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio--1024x768.jpg 1024w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio--300x225.jpg 300w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio--768x576.jpg 768w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio--1536x1152.jpg 1536w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/Filtracion-con-lana-de-vidrio-.jpg 1980w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Lorsque le raisin atteint un \u00e9quilibre optimal entre sucre, acidit\u00e9 et richesse en polyph\u00e9nols (IPT), le moment est consid\u00e9r\u00e9 comme propice pour fixer la date des vendanges.<\/p>\n<p>Dans le vignoble pilote de l&rsquo;Institut des sciences de la vigne et du vin (ICVV), au moment des vendanges, toutes les grappes de chaque plante s\u00e9lectionn\u00e9e parmi les traitements \u00e0 l&rsquo;eau r\u00e9g\u00e9n\u00e9r\u00e9e et \u00e0 l&rsquo;eau conventionnelle seront r\u00e9colt\u00e9es. Ensuite, les composants de la production seront analys\u00e9s : nombre de grappes par plante, poids de la production de 10 plantes, poids de 100 baies et nombre de baies par grappe.<\/p>\n<p>\u00c0 partir du mo\u00fbt extrait des \u00e9chantillons, une analyse compl\u00e8te des param\u00e8tres qui d\u00e9terminent la qualit\u00e9 du raisin sera effectu\u00e9e : pH, acide malique, acide tartrique, acidit\u00e9 totale, polyph\u00e9nols totaux et compos\u00e9s volatils responsables de l&rsquo;ar\u00f4me.<\/p>\n<p><span class=\"LineBreakBlob BlobObject DragDrop SCXW262831642 BCX0\"><span class=\"SCXW262831642 BCX0\"><a href=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-50920 size-large\" src=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3-1024x768.jpg\" alt=\"Procesado de mostos en cartuchos\" width=\"800\" height=\"600\" srcset=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3-1024x768.jpg 1024w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3-300x225.jpg 300w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3-768x576.jpg 768w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3-1536x1152.jpg 1536w, https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2025\/08\/procesado-de-mostos-en-cartuchos-3.jpg 1980w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le moment des vendanges est d\u00e9termin\u00e9 une fois que la veraison (transition entre la croissance du raisin et le d\u00e9but du processus de maturation, qui implique un changement de couleur du fruit)<\/p>\n","protected":false},"author":4973,"featured_media":50918,"parent":0,"template":"","meta":{"_acf_changed":false,"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"class_list":["post-50924","noticia-proyecto","type-noticia-proyecto","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Saviez-vous que le moment des vendanges n&#039;est pas choisi au hasard ? 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