{"id":7966,"date":"2024-08-11T09:57:23","date_gmt":"2024-08-11T09:57:23","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=7966"},"modified":"2024-08-11T09:57:23","modified_gmt":"2024-08-11T09:57:23","slug":"gougu-leaves","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/feuilles-de-gougu\/","title":{"rendered":"Caract\u00e9risation des composants actifs inhibiteurs de la lipase dans les feuilles de gougu par la m\u00e9thode de chromatographie sur couche mince Bioautographie MSn"},"content":{"rendered":"<p>Caract\u00e9risation des composants actifs inhibiteurs de la lipase dans les feuilles de gougu par la m\u00e9thode de chromatographie sur couche mince Bioautographie MSn<br \/>\nIlex cornuta Lindl Ex Paxt est une plante du genre Ilex de la famille des Ilex, largement r\u00e9pandue en Chine. Les feuilles s\u00e9ch\u00e9es de Gougu, un rem\u00e8de traditionnel chinois, ont \u00e9t\u00e9 incluses dans de nombreuses monographies de plantes depuis la dynastie Tang et ont une histoire m\u00e9dicinale de plus de mille ans. Selon la pharmacop\u00e9e de la R\u00e9publique populaire de Chine (\u00e9dition 2020, volume 1), les feuilles de Ligusticum barbarum ont un go\u00fbt amer et frais. Il appartient aux m\u00e9ridiens du foie et des reins et a pour fonctions d'\u00e9liminer la chaleur et de nourrir le yin, d'\u00eatre b\u00e9n\u00e9fique aux reins et de calmer le foie. Elle est utilis\u00e9e dans les cas d'h\u00e9moptysie due \u00e0 la tuberculose, de vapeur osseuse et de bouff\u00e9es de chaleur, d'\u00e9tourdissements et de vertiges, etc. Dans la culture populaire, les feuilles tendres de Gougu sont infus\u00e9es et consomm\u00e9es sous forme de th\u00e9 Kuding, en raison de leur effet de dissipation de la chaleur. La recherche moderne a montr\u00e9 que les feuilles de Cornus officinalis sont riches en triterp\u00e9no\u00efdes et en saponines, qui sont ses principaux ingr\u00e9dients actifs. En outre, il existe divers composants tels que les flavono\u00efdes, les polyph\u00e9nols, les st\u00e9rols, etc., qui ont diverses activit\u00e9s telles que la r\u00e9duction des lipides sanguins, la lutte contre l'isch\u00e9mie myocardique, l'antioxydation, l'immunosuppression et la lutte contre la fertilit\u00e9. En raison de l'efficacit\u00e9 insignifiante et des effets secondaires importants de la plupart des m\u00e9dicaments amaigrissants, l'activit\u00e9 hypolipid\u00e9miante des feuilles de Ligusticum barbarum a progressivement attir\u00e9 l'attention du public. Les chercheurs nationaux et \u00e9trangers ont men\u00e9 des recherches approfondies sur les composants chimiques des feuilles de Ligusticum barbarum, mais les m\u00e9thodes traditionnelles de s\u00e9paration chimique ont \u00e9t\u00e9 utilis\u00e9es pour rechercher les ingr\u00e9dients actifs hypolipid\u00e9miants, ce qui pr\u00e9sente des inconv\u00e9nients tels que le temps n\u00e9cessaire, la complexit\u00e9 de l'op\u00e9ration et la perte d'ingr\u00e9dients actifs.<br \/>\nLa bioluminescence par chromatographie sur couche mince est une technique de d\u00e9pistage des m\u00e9dicaments qui int\u00e8gre l'identification, la s\u00e9paration et la d\u00e9termination de l'activit\u00e9. Au cours des 20 derni\u00e8res ann\u00e9es, elle a \u00e9t\u00e9 largement utilis\u00e9e pour le d\u00e9pistage rapide des antioxydants, des inhibiteurs de la cholinest\u00e9rase et des inhibiteurs de la lipase. En outre, cette m\u00e9thode se caract\u00e9rise par sa simplicit\u00e9 d'utilisation et son faible co\u00fbt exp\u00e9rimental. La technologie d'ionisation directe fait r\u00e9f\u00e9rence \u00e0 une nouvelle technique d'ionisation utilis\u00e9e pour l'analyse rapide par spectrom\u00e9trie de masse d'\u00e9chantillons \u00e0 matrice complexe sans pr\u00e9traitement \u00e0 la pression atmosph\u00e9rique. La chromatographie sur couche mince coupl\u00e9e \u00e0 la spectrom\u00e9trie de masse \u00e0 plusieurs niveaux par ionisation par pulv\u00e9risation induite par un champ \u00e9lectrostatique (TLC-EFISI-MSn) peut r\u00e9aliser la caract\u00e9risation structurelle in situ des composants actifs dans l'autoradiographie sur couche mince des feuilles de Lycium barbarum. Cette technologie d'ionisation directe peut extraire des compos\u00e9s sur des plaques de chromatographie en couche mince par extraction de microgouttelettes sans gaz ni dispositifs de chauffage suppl\u00e9mentaires, et les ioniser directement sous l'action d'un champ \u00e9lectrostatique avant de les introduire dans le spectrom\u00e8tre de masse pour analyse ; il s'agit d'une m\u00e9thode d'ionisation facile \u00e0 d\u00e9monter, \u00e0 utiliser et \u00e0 d\u00e9tecter rapidement. Par cons\u00e9quent, cet article adopte la m\u00e9thode de la chromatographie sur couche mince et de la spectrom\u00e9trie de masse par autoradiographie biologique pour identifier rapidement les composants ayant une activit\u00e9 hypolipid\u00e9miante dans les feuilles de Ligustrum lucidum, ce qui permet de clarifier la base de la substance de l'effet hypolipid\u00e9miant des feuilles de Ligustrum lucidum.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7967\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-341.png\" alt=\"\" width=\"331\" height=\"210\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7968\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-286.png\" alt=\"\" width=\"680\" height=\"275\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7969\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-267.png\" alt=\"\" width=\"708\" height=\"773\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-267.png 708w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-267-659x720.png 659w\" sizes=\"(max-width: 708px) 100vw, 708px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7970\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-247.png\" alt=\"\" width=\"708\" height=\"470\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-247.png 708w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-247-325x217.png 325w\" sizes=\"(max-width: 708px) 100vw, 708px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7971\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-220.png\" alt=\"\" width=\"694\" height=\"497\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7972\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-20.jpg\" alt=\"\" width=\"652\" height=\"330\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-20.jpg 652w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-20-650x330.jpg 650w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><br \/>\nCet article a d'abord d\u00e9velopp\u00e9 l'\u00e9chantillon de test des feuilles de Ligustrum lucidum dans deux syst\u00e8mes : chloroforme, ac\u00e9tate d'\u00e9thyle, m\u00e9thanol et eau (1:3:1:0,3, V\/V\/V\/V) et ac\u00e9tate d'\u00e9thyle, m\u00e9thanol et eau (6:2:1, V\/V\/V) afin d'obtenir davantage de taches. Gr\u00e2ce \u00e0 la chromatographie sur couche mince, \u00e0 l'inhibition de la lipase et \u00e0 l'examen par bioluminescence, 10 taches pr\u00e9sentant une activit\u00e9 d'inhibition de la lipase dans les feuilles de Ligustrum lucidum ont \u00e9t\u00e9 s\u00e9lectionn\u00e9es, puis la technologie TLC EFISI MSn a \u00e9t\u00e9 utilis\u00e9e pour l'analyse structurelle rapide des taches susmentionn\u00e9es. Sur la base des donn\u00e9es de spectrom\u00e9trie de masse \u00e0 plusieurs \u00e9tapes combin\u00e9es \u00e0 des rapports de la litt\u00e9rature, des voies de fragmentation possibles de diff\u00e9rents compos\u00e9s ont \u00e9t\u00e9 sp\u00e9cul\u00e9es, et 15 structures possibles ont \u00e9t\u00e9 caract\u00e9ris\u00e9es de mani\u00e8re pr\u00e9liminaire, toutes \u00e9tant des saponines triterp\u00e9no\u00efdes, dont 9 triterp\u00e9no\u00efdes d'arbutine, 1 triterp\u00e9no\u00efde d'ol\u00e9anane et 5 triterp\u00e9no\u00efdes \u00e0 18,19 anneaux. Apr\u00e8s comparaison avec la substance de r\u00e9f\u00e9rence, 12 compos\u00e9s ont \u00e9t\u00e9 valid\u00e9s. Cette m\u00e9thode permet de cribler et de caract\u00e9riser rapidement les composants ayant une activit\u00e9 inhibitrice sur la lipase des feuilles de Cornus officinalis, fournissant ainsi une base pour clarifier la substance \u00e0 l'origine de l'efficacit\u00e9 hypolipid\u00e9miante des feuilles de Cornus officinalis.<\/p>","protected":false},"excerpt":{"rendered":"<p>Characterization of Lipase Inhibiting Active Components in Gougu Leaves by Thin Layer Chromatography Bioautography MSn Method Ilex cornuta Lindl Ex Paxt is a plant of the genus Ilex in the family Ilex, widely distributed in China. The dried leaves of Gougu, a traditional Chinese medicine, have been included in many herbal monographs since the Tang [&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>Characterization of Lipase Inhibiting Active Components in Gougu Leaves by Thin Layer Chromatography Bioautography MSn Method - 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\/feuilles-de-gougu\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Characterization of Lipase Inhibiting Active Components in Gougu Leaves by Thin Layer Chromatography Bioautography MSn Method - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Characterization of Lipase Inhibiting Active Components in Gougu Leaves by Thin Layer Chromatography Bioautography MSn Method Ilex cornuta Lindl Ex Paxt is a plant of the genus Ilex in the family Ilex, widely distributed in China. 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The dried leaves of Gougu, a traditional Chinese medicine, have been included in many herbal monographs since the Tang [&hellip;]","og_url":"https:\/\/longchangextracts.com\/fr\/feuilles-de-gougu\/","og_site_name":"China Chemical Manufacturer","article_published_time":"2024-08-11T09:57:23+00:00","og_image":[{"url":"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-341.png"}],"author":"longcha9","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"longcha9","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/longchangextracts.com\/gougu-leaves\/","url":"https:\/\/longchangextracts.com\/gougu-leaves\/","name":"Caract\u00e9risation des composants actifs inhibiteurs de la lipase dans les feuilles de gougu par la m\u00e9thode de chromatographie en couche mince Bioautographie MSn - China Chemical Manufacturer","isPartOf":{"@id":"https:\/\/longchangextracts.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/longchangextracts.com\/gougu-leaves\/#primaryimage"},"image":{"@id":"https:\/\/longchangextracts.com\/gougu-leaves\/#primaryimage"},"thumbnailUrl":"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-341.png","datePublished":"2024-08-11T09:57:23+00:00","dateModified":"2024-08-11T09:57:23+00:00","author":{"@id":"https:\/\/longchangextracts.com\/#\/schema\/person\/80933ac6926ad63fea74ec33f8d04869"},"breadcrumb":{"@id":"https:\/\/longchangextracts.com\/gougu-leaves\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/longchangextracts.com\/gougu-leaves\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/longchangextracts.com\/gougu-leaves\/#primaryimage","url":"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-341.png","contentUrl":"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-341.png"},{"@type":"BreadcrumbList","@id":"https:\/\/longchangextracts.com\/gougu-leaves\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/longchangextracts.com\/"},{"@type":"ListItem","position":2,"name":"Characterization of Lipase Inhibiting Active Components in Gougu Leaves by Thin Layer Chromatography Bioautography MSn Method"}]},{"@type":"WebSite","@id":"https:\/\/longchangextracts.com\/#website","url":"https:\/\/longchangextracts.com\/","name":"Fabricant chinois de produits chimiques","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/longchangextracts.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/longchangextracts.com\/#\/schema\/person\/80933ac6926ad63fea74ec33f8d04869","name":"longcha9","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/longchangextracts.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/c1e84ee0759373263198c58e8f338f80?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c1e84ee0759373263198c58e8f338f80?s=96&d=mm&r=g","caption":"longcha9"}}]}},"_links":{"self":[{"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/posts\/7966"}],"collection":[{"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/comments?post=7966"}],"version-history":[{"count":1,"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/posts\/7966\/revisions"}],"predecessor-version":[{"id":7973,"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/posts\/7966\/revisions\/7973"}],"wp:attachment":[{"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/media?parent=7966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/categories?post=7966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/longchangextracts.com\/fr\/wp-json\/wp\/v2\/tags?post=7966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}