{"id":5123,"date":"2024-08-04T17:27:18","date_gmt":"2024-08-04T17:27:18","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=5123"},"modified":"2024-08-04T17:27:18","modified_gmt":"2024-08-04T17:27:18","slug":"different-varieties-produced-in-chongqing","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/differentes-varietes-produites-a-chongqing\/","title":{"rendered":"\u00c9tude sur la qualit\u00e9 des chrysanth\u00e8mes m\u00e9dicinaux de diff\u00e9rentes vari\u00e9t\u00e9s produits \u00e0 Chongqing"},"content":{"rendered":"<p>\u00c9tude sur la qualit\u00e9 des chrysanth\u00e8mes m\u00e9dicinaux de diff\u00e9rentes vari\u00e9t\u00e9s produits \u00e0 Chongqing<br \/>\nLe chrysanth\u00e8me est l'inflorescence en forme de t\u00eate s\u00e9ch\u00e9e de la plante Asteraceae Chrysanthemum morifolium Ramat. Il a un go\u00fbt doux et amer, l\u00e9g\u00e8rement froid, et appartient aux m\u00e9ridiens du poumon et du foie. Il a pour fonctions de disperser le vent et la chaleur, d'\u00e9claircir le foie et d'am\u00e9liorer la vision, d'\u00e9claircir la chaleur et de d\u00e9sintoxiquer, et de calmer le yang du foie. Les flavono\u00efdes et les ph\u00e9nylpropano\u00efdes des chrysanth\u00e8mes sont les principaux composants pharmacologiques des chrysanth\u00e8mes, qui ont un large \u00e9ventail d'activit\u00e9s pharmacologiques telles que la lutte contre les allergies, l'inhibition des tumeurs, la lutte contre la peroxydation lipidique cardiovasculaire, l'antibact\u00e9rien, l'antiviral et le pi\u00e9geage des radicaux libres. Actuellement, ils sont largement utilis\u00e9s dans la pratique clinique pour le traitement de maladies telles que le vent, la chaleur et le froid, les vertiges et les troubles de la vision.<\/p>\n<p>Le chrysanth\u00e8me, plante m\u00e9dicinale majeure, poss\u00e8de de nombreuses vari\u00e9t\u00e9s. La pharmacop\u00e9e de la R\u00e9publique populaire de Chine (\u00e9dition 2020) comprend cinq vari\u00e9t\u00e9s principales : \"Boju\", \"Chuju\", \"Gongju\", \"Hangju\" et \"Huaiju\". Il existe \u00e9galement des vari\u00e9t\u00e9s telles que Qiju, Chuanju et Jiju sur le march\u00e9. La recherche moderne a montr\u00e9 que la morphologie biologique des diff\u00e9rentes vari\u00e9t\u00e9s de chrysanth\u00e8mes varie et qu'il existe \u00e9galement des diff\u00e9rences significatives dans la teneur en divers acides organiques, flavono\u00efdes et autres composants. En g\u00e9n\u00e9ral, les travaux de s\u00e9lection traditionnels se concentrent sur les caract\u00e9ristiques botaniques des chrysanth\u00e8mes, telles que la taille de l'inflorescence, le diam\u00e8tre du disque, le nombre de p\u00e9tales, le parfum, la couleur, la ramification, la forme des feuilles et la hauteur de la plante. Parall\u00e8lement, l'accent est mis sur la culture et la fixation de leurs caract\u00e9ristiques significatives, mais les recherches sur les ingr\u00e9dients efficaces sont moins nombreuses. La qualit\u00e9 des chrysanth\u00e8mes n'est pas seulement li\u00e9e \u00e0 leurs caract\u00e9ristiques \u00e9cologiques, mais aussi \u00e0 des indicateurs tels que les oligo-\u00e9l\u00e9ments, les flavono\u00efdes, les ph\u00e9nols et les huiles volatiles.<\/p>\n<p>L'analyse quantitative de composants multiples par un seul fabricant (QAMS) est une m\u00e9thode de mesure quantitative qui utilise des \u00e9talons de r\u00e9f\u00e9rence de qualit\u00e9 stable et faciles \u00e0 obtenir, ainsi que des composants cliniquement efficaces comme \u00e9talons internes, calcule leur teneur et les facteurs de correction relatifs entre d'autres composants et ce composant, et utilise les relations fonctionnelles intrins\u00e8ques entre les composants du m\u00e9dicament pour parvenir \u00e0 une d\u00e9termination rapide de la teneur en composants chimiques multiples. La recherche a montr\u00e9 que la m\u00e9thode d'\u00e9valuation unique et multiple est efficace, pratique, pr\u00e9cise et r\u00e9alisable pour d\u00e9terminer la teneur en composants chimiques des chrysanth\u00e8mes. Ses r\u00e9sultats ne sont pas significativement diff\u00e9rents des m\u00e9thodes standard externes et peuvent d\u00e9terminer simultan\u00e9ment la teneur de plusieurs composants chimiques dans les chrysanth\u00e8mes.<\/p>\n<p>Cet article prend pour objet de recherche le chrysanth\u00e8me Hangbai, le chrysanth\u00e8me Xiaoyang, le chrysanth\u00e8me Huai, le chrysanth\u00e8me Xiaohuang et divers chrysanth\u00e8mes m\u00e9dicinaux pr\u00e9sentant des caract\u00e9ristiques morphologiques diff\u00e9rentes, ainsi que des souches locales de Yunyang. La teneur en flavono\u00efdes et en acides organiques des chrysanth\u00e8mes pr\u00e9sentant diff\u00e9rentes caract\u00e9ristiques morphologiques a \u00e9t\u00e9 d\u00e9termin\u00e9e, et la teneur en humidit\u00e9 et en cendres totales a \u00e9galement \u00e9t\u00e9 mesur\u00e9e afin d'\u00e9tudier de mani\u00e8re approfondie la relation interne entre les diff\u00e9rentes caract\u00e9ristiques morphologiques et les divers ingr\u00e9dients m\u00e9dicinaux des chrysanth\u00e8mes individuels. Cette \u00e9tude a utilis\u00e9 l'analyse en grappes et l'analyse en composantes principales pour d\u00e9velopper une m\u00e9thode d'\u00e9valuation compl\u00e8te de la qualit\u00e9 des chrysanth\u00e8mes. La qualit\u00e9 des chrysanth\u00e8mes a \u00e9t\u00e9 compar\u00e9e sur la base des vari\u00e9t\u00e9s qui peuvent \u00eatre produites normalement \u00e0 Chongqing, et des plantes individuelles de haute qualit\u00e9 ont finalement \u00e9t\u00e9 s\u00e9lectionn\u00e9es pour servir de base \u00e0 une propagation ult\u00e9rieure et \u00e0 des exp\u00e9riences r\u00e9gionales. L'objectif est de fournir des donn\u00e9es exp\u00e9rimentales pour la s\u00e9lection et l'\u00e9valuation des vari\u00e9t\u00e9s de chrysanth\u00e8mes m\u00e9dicinaux \u00e0 Chongqing.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5124\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-120.png\" alt=\"\" width=\"777\" height=\"432\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-120.png 777w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-120-768x427.png 768w\" sizes=\"(max-width: 777px) 100vw, 777px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5125\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-106.png\" alt=\"\" width=\"784\" height=\"464\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-106.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-106-768x455.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5126\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-100.png\" alt=\"\" width=\"374\" height=\"247\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5127\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-89.png\" alt=\"\" width=\"775\" height=\"512\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-89.png 775w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-89-768x507.png 768w\" sizes=\"(max-width: 775px) 100vw, 775px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5128\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-82.png\" alt=\"\" width=\"766\" height=\"289\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5129\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-74.png\" alt=\"\" width=\"776\" height=\"270\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-74.png 776w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-74-768x267.png 768w\" sizes=\"(max-width: 776px) 100vw, 776px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5130\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-67.png\" alt=\"\" width=\"782\" height=\"516\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-67.png 782w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-67-768x507.png 768w\" sizes=\"(max-width: 782px) 100vw, 782px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5131\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-62.png\" alt=\"\" width=\"783\" height=\"570\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-62.png 783w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-62-768x559.png 768w\" sizes=\"(max-width: 783px) 100vw, 783px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5132\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-56.png\" alt=\"\" width=\"777\" height=\"662\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-56.png 777w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-56-768x654.png 768w\" sizes=\"(max-width: 777px) 100vw, 777px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5133\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-46.png\" alt=\"\" width=\"779\" height=\"320\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-46.png 779w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-46-768x315.png 768w\" sizes=\"(max-width: 779px) 100vw, 779px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5134\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-41.png\" alt=\"\" width=\"782\" height=\"331\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-41.png 782w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-41-768x325.png 768w\" sizes=\"(max-width: 782px) 100vw, 782px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5135\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-35.png\" alt=\"\" width=\"783\" height=\"403\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-35.png 783w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-35-768x395.png 768w\" sizes=\"(max-width: 783px) 100vw, 783px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5136\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/13-30.png\" alt=\"\" width=\"781\" height=\"346\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/13-30.png 781w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/13-30-768x340.png 768w\" sizes=\"(max-width: 781px) 100vw, 781px\" \/><br \/>\nDans cette exp\u00e9rience, diff\u00e9rentes concentrations d'eau d'acide phosphorique et d'ac\u00e9tonitrile ont \u00e9t\u00e9 utilis\u00e9es comme phases mobiles pour comparer et analyser la forme des pics, le temps de r\u00e9tention, le degr\u00e9 de s\u00e9paration et la stabilit\u00e9 de la ligne de base de 10 composants chimiques du chrysanth\u00e8me. Le syst\u00e8me de phase mobile pr\u00e9sentant une meilleure sym\u00e9trie des pics, une ligne de base plus lisse et un meilleur effet de s\u00e9paration, \u00e0 savoir le syst\u00e8me de phase mobile hydrosoluble ac\u00e9tonitrile-0,4% d'acide phosphorique, a finalement \u00e9t\u00e9 s\u00e9lectionn\u00e9, ce qui \u00e9tait plus efficace que le syst\u00e8me de phase mobile hydrosoluble ac\u00e9tonitrile-0,1% d'acide phosphorique sp\u00e9cifi\u00e9 dans la pharmacop\u00e9e. Le balayage de la gamme de longueurs d'onde 200-400nm a permis de constater que les acides organiques ont une absorption UV forte et concentr\u00e9e entre 320-335nm, tandis que les flavono\u00efdes ont une absorption UV forte et concentr\u00e9e entre 330-360nm ; les longueurs d'onde d'absorption UV les plus fortes de l'acide chlorog\u00e9nique, de l'acide n\u00e9ochlorog\u00e9nique, de l'acide isochlorog\u00e9nique A, etc. sont proches de 328 nm, tandis que les longueurs d'onde d'absorption UV les plus fortes de la syringine, de la daidz\u00e9ine et de la lut\u00e9oline sont toutes proches de 348 nm, et il existe une diff\u00e9rence significative dans la surface des pics entre les deux types de substances \u00e0 ces deux longueurs d'onde. Par cons\u00e9quent, afin de garantir la pr\u00e9cision des r\u00e9sultats, cette exp\u00e9rience a s\u00e9lectionn\u00e9 des longueurs d'onde de 328 nm et 348 nm pour d\u00e9tecter les acides organiques et les flavono\u00efdes, respectivement, afin d'\u00e9viter les erreurs dues \u00e0 la d\u00e9tection des deux substances \u00e0 la m\u00eame longueur d'onde.<\/p>\n<p>L'exp\u00e9rience a s\u00e9lectionn\u00e9 des m\u00e9thodes d'extraction \u00e0 reflux et assist\u00e9es par ultrasons pour extraire les \u00e9chantillons. Du m\u00e9thanol 50%, du m\u00e9thanol 75% et du m\u00e9thanol pur ont \u00e9t\u00e9 utilis\u00e9s pour diff\u00e9rentes dur\u00e9es d'extraction. Enfin, les effets d'extraction, la difficult\u00e9 op\u00e9rationnelle et l'efficacit\u00e9 temporelle des diff\u00e9rentes m\u00e9thodes d'extraction ont \u00e9t\u00e9 compar\u00e9s de mani\u00e8re exhaustive. La m\u00e9thode de pr\u00e9traitement optimale a \u00e9t\u00e9 d\u00e9termin\u00e9e comme \u00e9tant l'utilisation d'une solution aqueuse de m\u00e9thanol 70% pour un traitement par ultrasons de 45 minutes \u00e0 60 \u2103. Cette m\u00e9thode a non seulement am\u00e9lior\u00e9 de mani\u00e8re significative l'efficacit\u00e9 et la pr\u00e9cision de l'extraction, mais a \u00e9galement r\u00e9duit le processus exp\u00e9rimental fastidieux.<\/p>\n<p>En r\u00e9sum\u00e9, cet article \u00e9tudie l'\u00e9tablissement d'une m\u00e9thode pour d\u00e9terminer simultan\u00e9ment la teneur de 10 composants chimiques dans le chrysanth\u00e8me en utilisant la CLHP avec des \u00e9valuations multiples. L'\u00e9tude a utilis\u00e9 l'acide chlorog\u00e9nique et le verbascoside comme r\u00e9f\u00e9rences standard internes pour d\u00e9terminer la teneur de 10 composants dans 61 plantes de chrysanth\u00e8me sur la base de facteurs de correction relatifs, et les r\u00e9sultats n'ont montr\u00e9 aucune diff\u00e9rence significative par rapport \u00e0 la m\u00e9thode standard externe. Les r\u00e9sultats indiquent que cette m\u00e9thode est efficace, pratique, pr\u00e9cise et r\u00e9alisable, et que ses r\u00e9sultats sont fondamentalement les m\u00eames que ceux de la d\u00e9termination traditionnelle de la teneur. En m\u00eame temps, l'analyse en grappes et l'analyse en composantes principales ont \u00e9t\u00e9 utilis\u00e9es pour d\u00e9velopper une m\u00e9thode d'\u00e9valuation compl\u00e8te de la qualit\u00e9 du chrysanth\u00e8me. Trois excellentes plantes individuelles pr\u00e9sentant la meilleure qualit\u00e9 et convenant \u00e0 la croissance \u00e0 Chongqing ont fait l'objet d'une s\u00e9lection pr\u00e9liminaire, \u00e0 savoir la souche Yangju (yj-2-4 yj-3-7\u3001yj-6-15)\u3002 Cela fournit des donn\u00e9es exp\u00e9rimentales pour l'\u00e9tape suivante de la s\u00e9lection de nouvelles vari\u00e9t\u00e9s, et fournit \u00e9galement une nouvelle m\u00e9thode pour le contr\u00f4le et l'\u00e9valuation complets de la qualit\u00e9 intrins\u00e8que des chrysanth\u00e8mes m\u00e9dicinaux produits \u00e0 Chongqing. Fournir une base scientifique pour la s\u00e9lection et l'\u00e9valuation de la qualit\u00e9 des vari\u00e9t\u00e9s de chrysanth\u00e8mes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Study on the Quality of Medicinal Chrysanthemums of Different Varieties Produced in Chongqing Chrysanthemum is the dried head shaped inflorescence of the Asteraceae plant Chrysanthemum morifolium Ramat. It has a sweet and bitter taste, slightly cold, and belongs to the lung and liver meridians. It has the functions of dispersing wind and heat, clearing the [&hellip;]<\/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":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Study on the Quality of Medicinal Chrysanthemums of Different Varieties Produced in Chongqing - 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\/differentes-varietes-produites-a-chongqing\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on the Quality of Medicinal Chrysanthemums of Different Varieties Produced in Chongqing - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Quality of Medicinal Chrysanthemums of Different Varieties Produced in Chongqing Chrysanthemum is the dried head shaped inflorescence of the Asteraceae plant Chrysanthemum morifolium Ramat. It has a sweet and bitter taste, slightly cold, and belongs to the lung and liver meridians. 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