{"id":3871,"date":"2024-08-03T08:28:09","date_gmt":"2024-08-03T08:28:09","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=3871"},"modified":"2024-08-03T08:28:09","modified_gmt":"2024-08-03T08:28:09","slug":"houttuynia-cordata-ethyl-acetate","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/houttuynia-cordata-ethyl-acetate\/","title":{"rendered":"\u00c9tude de la composition chimique et de l'activit\u00e9 anti-pathog\u00e8ne de l'extrait d'ac\u00e9tate d'\u00e9thyle de Houttuynia cordata"},"content":{"rendered":"

\u00c9tude de la composition chimique et de l'activit\u00e9 anti-pathog\u00e8ne de l'extrait d'ac\u00e9tate d'\u00e9thyle de Houttuynia cordata
\nHouttuynia cordata Thunb appartient \u00e0 la famille des Trifolium, et ses racines, ses tiges et ses feuilles peuvent toutes \u00eatre utilis\u00e9es comme m\u00e9dicaments. Elle a pour effet de dissiper la chaleur et de d\u00e9toxifier, et peut renforcer la fonction immunitaire de l'organisme. C'est une plante \u00e0 double usage, m\u00e9dical et alimentaire, dont les effets les plus significatifs sont l'allergie, le soulagement de l'asthme et de la toux. Elle est donc couramment utilis\u00e9e dans la pratique clinique pour traiter des maladies telles que les mucosit\u00e9s, la chaleur, la respiration sifflante et la toux. En 2003, le pays l'a s\u00e9lectionn\u00e9 comme l'un des huit m\u00e9dicaments pour traiter le syndrome respiratoire aigu (SRAS). Dans la pratique clinique, on utilise principalement le principe actif de son huile volatile, le d\u00e9canoyl-ac\u00e9tald\u00e9hyde, \u00e9galement connu sous le nom de houttuynia cordata. L'adduit de bisulfite de sodium de l'ac\u00e9tald\u00e9hyde de d\u00e9canoyle est commun\u00e9ment appel\u00e9 houttuynia cordata sodium. L'houttuyfonate sodique peut \u00eatre utilis\u00e9 pour traiter la bronchite chronique et d'autres maladies infectieuses des voies respiratoires sup\u00e9rieures, etc. Parall\u00e8lement, les flavono\u00efdes contenus dans l'houttuyfonate, tels que la querc\u00e9tine et la querc\u00e9tine, ont de bons effets bact\u00e9ricides, expectorants et antiprurigineux. Actuellement, un nouveau squelette structurel de flavono\u00efde a \u00e9t\u00e9 d\u00e9couvert dans Houttuynia cordata, qui appartient au nouveau squelette de flavono\u00efde compos\u00e9 de l'extrait de Houttuynia cordata et de flavono\u00efdes. Il poss\u00e8de une bonne activit\u00e9 contre le virus de l'herp\u00e8s simplex et peut \u00eatre utilis\u00e9 comme composant caract\u00e9ristique pour le contr\u00f4le de la qualit\u00e9 de l'Houttuynia cordata. Selon des revues de produits naturels faisant autorit\u00e9, les composants chimiques les plus abondants dans Houttuynia cordata sont les flavono\u00efdes, avec plus de 100 d'entre eux ; viennent ensuite les alcalo\u00efdes et les compos\u00e9s polyph\u00e9noliques ; il y a plus de 70 compos\u00e9s d'alcalo\u00efdes, qui pr\u00e9sentent principalement des activit\u00e9s biologiques telles que des effets antiviraux et anti-inflammatoires ; les ph\u00e9nylpropano\u00efdes, les coumarines, les triterp\u00e9no\u00efdes et les sesquiterp\u00e8nes sont moins signal\u00e9s. Les ingr\u00e9dients m\u00e9dicinaux isol\u00e9s et extraits de la plante naturelle Houttuynia cordata pr\u00e9sentent une faible toxicit\u00e9 pour le corps humain et de bons effets th\u00e9rapeutiques, et ont attir\u00e9 l'attention des chercheurs.
\nLes produits agricoles et les autres ressources deviennent de plus en plus rares dans le monde, et ils deviendront des armes importantes pour la concurrence et pour limiter l'ascension de la Chine parmi les grandes puissances. L'agriculture rev\u00eat une valeur politique et strat\u00e9gique importante pour la Chine. Cependant, les maladies et les ravageurs caus\u00e9s par les champignons phytopathog\u00e8nes sont l'une des principales causes de la baisse des rendements des cultures et des denr\u00e9es alimentaires dans le monde. \u00c0 l'heure actuelle, des recherches ont montr\u00e9 que les m\u00e9tabolites secondaires produits par les champignons endophytes dans les plantes de Houttuynia cordata ont une activit\u00e9 antibact\u00e9rienne. Liu Zhengqiong, de l'universit\u00e9 agricole du Sichuan, a \u00e9galement d\u00e9couvert que les champignons endophytes isol\u00e9s de Houttuynia cordata, tels que Pestalotiopsis microspora, Chaetomium globorum et Fusarium nemetophilum, ont des taux d'inhibition de plus de 40% contre les pathog\u00e8nes v\u00e9g\u00e9taux tels que la fusariose du bl\u00e9, la pyriculariose de la pomme de terre, la pyriculariose du poivron, le fl\u00e9trissement de la past\u00e8que et le champignon \u00e0 disque nucl\u00e9aire. Cependant, il existe peu de rapports sur l'activit\u00e9 fongique anti-pathog\u00e8ne des composants chimiques de Houttuynia cordata. Par cons\u00e9quent, cet article poursuit la recherche de compos\u00e9s m\u00e9dicamenteux structurellement diversifi\u00e9s avec des champignons phytopathog\u00e8nes de Houttuynia cordata, afin de fournir des compos\u00e9s alternatifs pour le d\u00e9veloppement et la cr\u00e9ation de nouveaux pesticides.<\/p>\n

\"\"\"\"
\nCet article a permis d'isoler et d'identifier 10 compos\u00e9s, dont 4 sesquiterp\u00e8nes r\u00e9ducteurs de carbone, 3 flavono\u00efdes et 3 polyph\u00e9nols, \u00e0 partir de l'extrait d'ac\u00e9tate d'\u00e9thyle de la partie s\u00e9ch\u00e9e 95% de Houttuynia cordata. Les compos\u00e9s 1 \u00e0 4 sont les premiers sesquiterp\u00e8nes r\u00e9ducteurs de carbone isol\u00e9s \u00e0 partir de Houttuynia cordata dans les montagnes Qinling. Aucun rapport n'a fait \u00e9tat de sesquiterp\u00e8nes r\u00e9ducteurs de carbone dans les m\u00e9tabolites secondaires de Houttuynia cordata. Cet article rapporte pour la premi\u00e8re fois les sesquiterp\u00e8nes r\u00e9ducteurs de carbone de Houttuynia cordata, augmentant ainsi le nombre de composants chimiques de Houttuynia cordata et enrichissant les types structurels de ses compos\u00e9s. Les compos\u00e9s 1-4 des sesquiterp\u00e8nes r\u00e9ducteurs de carbone ont une faible activit\u00e9 antibact\u00e9rienne contre Fusarium graminearum, Fusarium oxysporum, Botrytis cinerea, Fusarium oxysporum et Fusarium oxysporum ; les flavono\u00efdes 5-7 ont une activit\u00e9 antibact\u00e9rienne mod\u00e9r\u00e9e contre Fusarium graminearum, Fusarium oxysporum, Botrytis cinerea, Fusarium oxysporum et Fusarium oxysporum ; Les compos\u00e9s polyph\u00e9noliques 8-10 ont une faible activit\u00e9 antibact\u00e9rienne contre les cinq pathog\u00e8nes v\u00e9g\u00e9taux mentionn\u00e9s ci-dessus, ce qui constitue une base de recherche pour l'\u00e9tude ult\u00e9rieure de la composition chimique et des effets pharmacologiques de Houttuynia cordata.<\/p>","protected":false},"excerpt":{"rendered":"

Study on the Chemical Composition and Anti Plant Pathogen Activity of Ethyl Acetate Extract from Houttuynia cordata Houttuynia cordata Thunb belongs to the family Trifolium, and its roots, stems, and leaves can all be used as medicine. It has the effects of clearing heat and detoxifying, and can enhance the body’s immune function. It is […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"\nStudy on the Chemical Composition and Anti Plant Pathogen Activity of Ethyl Acetate Extract from Houttuynia cordata - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/fr\/houttuynia-cordata-ethyl-acetate\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on the Chemical Composition and Anti Plant Pathogen Activity of Ethyl Acetate Extract from Houttuynia cordata - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Chemical Composition and Anti Plant Pathogen Activity of Ethyl Acetate Extract from Houttuynia cordata Houttuynia cordata Thunb belongs to the family Trifolium, and its roots, stems, and leaves can all be used as medicine. It has the effects of clearing heat and detoxifying, and can enhance the body’s immune function. 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