{"id":6458,"date":"2024-08-06T12:14:47","date_gmt":"2024-08-06T12:14:47","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=6458"},"modified":"2024-08-06T12:14:47","modified_gmt":"2024-08-06T12:14:47","slug":"volatile-oil-components","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/volatile-oil-components\/","title":{"rendered":"Diff\u00e9rences et similitudes des composants de l'huile volatile de Plantago asiatica d'apr\u00e8s l'analyse GC-MS"},"content":{"rendered":"

Diff\u00e9rences et similitudes des composants de l'huile volatile de Plantago asiatica d'apr\u00e8s l'analyse GC-MS
\nLes mati\u00e8res m\u00e9dicinales originales Duoji sont une composante importante des mati\u00e8res m\u00e9dicinales chinoises r\u00e9pertori\u00e9es dans la pharmacop\u00e9e chinoise. L'expression \"une plante aux origines multiples\" fait r\u00e9f\u00e9rence \u00e0 une m\u00eame plante m\u00e9dicinale chinoise dont les sources sont constitu\u00e9es de deux esp\u00e8ces ou plus. Un m\u00e9dicament unique aux origines multiples a un effet positif sur l'\u00e9largissement de la source de la m\u00e9decine traditionnelle chinoise et sur la satisfaction de la demande de m\u00e9dicaments cliniques, mais il peut y avoir certaines diff\u00e9rences dans la base mat\u00e9rielle des diff\u00e9rentes origines, ce qui entra\u00eene certaines difficult\u00e9s pour l'application clinique. M. Xie Zongwan estime que les fonctions et les indications des diff\u00e9rentes vari\u00e9t\u00e9s d'une m\u00eame plante devraient \u00eatre extr\u00eamement similaires. Le degr\u00e9 \u00e9lev\u00e9 de coh\u00e9rence entre les fonctions et les indications des diff\u00e9rentes vari\u00e9t\u00e9s doit \u00eatre attribu\u00e9 \u00e0 la grande similitude de leur substance pharmacologique de base. Il est donc n\u00e9cessaire de mener des recherches comparatives sur la base mat\u00e9rielle de diff\u00e9rentes vari\u00e9t\u00e9s de mati\u00e8res m\u00e9dicinales originales \u00e0 base multiple.<\/p>\n

Plantago asiatica L., \u00e9galement connu sous le nom de Plantago asiatica L. ou Plantago depression Willd. est une plante enti\u00e8re s\u00e9ch\u00e9e d\u00e9riv\u00e9e de Plantago asiatica L. ou Plantago depression Willd. Plantago asiatica a pour effet d'\u00e9vacuer la chaleur, de favoriser la diur\u00e8se, d'\u00e9liminer les mucosit\u00e9s, de refroidir le sang et de d\u00e9sintoxiquer. Il peut \u00eatre utilis\u00e9 pour traiter des sympt\u00f4mes tels que la douleur due \u00e0 la chaleur, l'\u0153d\u00e8me, l'oligurie, la diarrh\u00e9e caus\u00e9e par la chaleur et l'humidit\u00e9, la toux due \u00e0 la chaleur des mucosit\u00e9s, les vomissements de sang et les h\u00e9morragies, ainsi que les abc\u00e8s et les plaies. La recherche pharmacologique moderne a montr\u00e9 que Plantago asiatica a des effets pharmacologiques tels que la r\u00e9duction des lipides sanguins, l'antivieillissement, l'antibact\u00e9rien et l'anti-inflammatoire, l'antioxydant et l'antitumoral. L'huile volatile est une substance m\u00e9dicinale importante de Plantago asiatica, mais il n'existe actuellement aucun rapport comparant les composants de l'huile volatile de deux types diff\u00e9rents de Plantago asiatica. Cette \u00e9tude est la premi\u00e8re \u00e0 utiliser la technologie de la chromatographie en phase gazeuse et de la spectrom\u00e9trie de masse combin\u00e9e \u00e0 la reconnaissance des formes chimiques pour comparer et analyser les composants de l'huile volatile dans le plantain entier s\u00e9ch\u00e9 et le plantain plat, afin de fournir une base scientifique \u00e0 l'utilisation clinique rationnelle du plantain.<\/p>\n

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\nCes derni\u00e8res ann\u00e9es, la technologie de la chromatographie en phase gazeuse et de la spectrom\u00e9trie de masse (GC-MS) a \u00e9t\u00e9 largement utilis\u00e9e pour l'identification des composants volatils dans la m\u00e9decine traditionnelle chinoise, permettant l'int\u00e9gration de la s\u00e9paration et de la d\u00e9tection de certains composants volatils complexes de l'huile. Toutefois, en raison de la taille importante de l'ensemble des donn\u00e9es mesur\u00e9es et de ses caract\u00e9ristiques complexes, telles qu'une latitude \u00e9lev\u00e9e, un bruit important, une forte corr\u00e9lation entre les variables et une grande variabilit\u00e9, la combinaison de la st\u0153chiom\u00e9trie chimique pour explorer les similitudes et les diff\u00e9rences entre les diff\u00e9rents \u00e9chantillons de l'ensemble de donn\u00e9es fastidieux est un outil populaire pour l'analyse ult\u00e9rieure des donn\u00e9es. \u00c0 l'heure actuelle, la GC-MS combin\u00e9e \u00e0 des m\u00e9thodes chimiom\u00e9triques a \u00e9t\u00e9 largement utilis\u00e9e pour l'identification de vari\u00e9t\u00e9s similaires de m\u00e9dicaments traditionnels chinois.<\/p>\n

Les r\u00e9sultats de cette \u00e9tude ont montr\u00e9 qu'un total de 62 composants chimiques ont \u00e9t\u00e9 identifi\u00e9s dans 7 lots de Plantago asiatica et 7 lots d'huile volatile avant le transport \u00e0 plat, principalement constitu\u00e9s d'alcanes et d'acides. Plantago asiatica a 10 composants, tandis que Platycodon grandiflorus en a 12. Parmi eux, les composants chimiques ayant une teneur relative moyenne relativement \u00e9lev\u00e9e dans Plantago asiatica et Platycodon grandiflorus sont principalement l'acide palmitique, l'acide linol\u00e9ique et l'acide alpha-linol\u00e9nique, repr\u00e9sentant respectivement 46,4%, 15,38%, 19,11%, et 35,93%, 9,69%, et 15,48%. Cette conclusion est similaire aux r\u00e9sultats d'Al Mazroa et al. selon lesquels l'huile volatile de Plantago asiatica contient principalement de l'acide palmitique. Hui et al. ont constat\u00e9 que les composants de l'huile volatile de Plantago asiatica avaient la teneur la plus \u00e9lev\u00e9e en 2,6-di-tert-butyl-p-cr\u00e9sol, ce qui sugg\u00e8re que les diff\u00e9rences entre les recherches peuvent \u00eatre li\u00e9es \u00e0 des m\u00e9thodes d'extraction incoh\u00e9rentes de Plantago asiatica.<\/p>\n

L'\u00e9quivalence des m\u00e9dicaments traditionnels chinois d'origines multiples est un aspect important de l'\u00e9valuation de la qualit\u00e9 de la m\u00e9decine chinoise. Notre groupe de recherche a d\u00e9j\u00e0 utilis\u00e9 la technologie GC-MS combin\u00e9e \u00e0 la chimiom\u00e9trie pour comparer et \u00e9tudier les composants volatils du grain de sable de Yangchun, du grain de sable \u00e0 coquille verte, du Sichuan Gaoben et du Liao Gaoben. Sur la base des r\u00e9sultats des analyses HCA et PCA, le grain de sable de Yangchun et le grain de sable \u00e0 coquille verte, ainsi que le Chuangaoben et le Liaogaoben, peuvent \u00eatre compl\u00e8tement s\u00e9par\u00e9s. Cependant, cette \u00e9tude a montr\u00e9 qu'il y avait 9 composants communs entre les 7 lots de Plantago asiatica et les 7 lots de Platycodon grandiflorus, avec des pourcentages relatifs repr\u00e9sentant plus de 80%, et la teneur \u00e9tait plus \u00e9lev\u00e9e en acide palmitique, en acide linol\u00e9ique et en acide alpha-linol\u00e9nique ; D'apr\u00e8s les r\u00e9sultats de l'analyse de similarit\u00e9, la similarit\u00e9 de tous les lots est sup\u00e9rieure \u00e0 0.967, ce qui indique une similarit\u00e9 globale \u00e9lev\u00e9e ; D'apr\u00e8s les r\u00e9sultats de la classification HCA et 3D PCA, on peut voir que les 14 lots de Plantago asiatica ne peuvent pas \u00eatre compl\u00e8tement distingu\u00e9s par la vari\u00e9t\u00e9. En utilisant le mod\u00e8le OPLS-DA avec des valeurs VIP sup\u00e9rieures \u00e0 1, les composants qui contribuent de mani\u00e8re significative \u00e0 la classification ci-dessus ont \u00e9t\u00e9 identifi\u00e9s comme \u00e9tant l'acide palmitique, l'acide linol\u00e9ique et l'acide alpha-linol\u00e9nique. En r\u00e9sum\u00e9, les composants de l'huile volatile \u00e0 l'avant de la voiture et de la plate-forme sont tr\u00e8s similaires, de sorte qu'il existe une certaine base scientifique pour que les deux soient utilis\u00e9s comme la m\u00eame plante m\u00e9dicinale. Il convient d'\u00e9tudier plus avant si leurs composants non volatils pr\u00e9sentent les m\u00eames caract\u00e9ristiques.<\/p>\n

En r\u00e9sum\u00e9, cette \u00e9tude est la premi\u00e8re \u00e0 utiliser la technologie GC-MS combin\u00e9e \u00e0 des mod\u00e8les chimiques pour comparer les composants de l'huile volatile de Plantago asiatica et de Plantago asiatica, et \u00e0 constater que les composants de l'huile volatile de ces deux plantes sont tr\u00e8s similaires. Elle jette les bases d'une \u00e9lucidation de la connotation scientifique de la plante m\u00e9dicinale chinoise Plantago asiatica, \u00e0 savoir \"un m\u00e9dicament, des sources multiples\".<\/p>","protected":false},"excerpt":{"rendered":"

Differences and Similarities of Volatile Oil Components in Plantago asiatica Based on GC-MS Analysis Duoji original medicinal materials are an important component of Chinese medicinal materials listed in the Chinese Pharmacopoeia. ‘One herb with multiple origins’ refers to the same Chinese medicinal herb having two or more species sources. 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