{"id":5410,"date":"2024-08-04T18:48:24","date_gmt":"2024-08-04T18:48:24","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=5410"},"modified":"2024-08-04T18:48:24","modified_gmt":"2024-08-04T18:48:24","slug":"study-on-secondary-metabolites-of-marine-fungus-aspergillus-terreus","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/etude-sur-les-metabolites-secondaires-du-champignon-marin-aspergillus-terreus\/","title":{"rendered":"\u00c9tude des m\u00e9tabolites secondaires du champignon marin Aspergillus terreus"},"content":{"rendered":"<p>\u00c9tude des m\u00e9tabolites secondaires du champignon marin Aspergillus terreus<br \/>\nCes derni\u00e8res ann\u00e9es, les produits naturels marins ont attir\u00e9 l'attention des chimistes et des biologistes du monde entier. Plus de 16 000 produits naturels marins ont \u00e9t\u00e9 isol\u00e9s et identifi\u00e9s \u00e0 partir d'organismes marins, et les micro-organismes marins sont consid\u00e9r\u00e9s comme une source pr\u00e9cieuse pour la production de nouveaux antibiotiques, de m\u00e9dicaments antitumoraux et anti-inflammatoires. Les champignons marins, en particulier ceux li\u00e9s aux algues marines, aux \u00e9ponges, aux invert\u00e9br\u00e9s et aux s\u00e9diments, sont des producteurs efficaces de m\u00e9tabolites secondaires bioactifs. En raison de leurs caract\u00e9ristiques en mati\u00e8re de temp\u00e9rature, de nutriments, de concurrence et de salinit\u00e9, ils forment des voies m\u00e9taboliques secondaires sp\u00e9cifiques par rapport aux champignons terrestres et peuvent produire en abondance de nouveaux produits naturels actifs. Ces nouveaux m\u00e9tabolites secondaires structurels jouent un r\u00f4le important dans la d\u00e9couverte de m\u00e9dicaments.<\/p>\n<p>Les champignons Aspergillus constituent l'un des groupes de champignons les plus r\u00e9pandus sur Terre, comprenant plus de 300 \u00e0 350 esp\u00e8ces de champignons. \u00c0 l'heure actuelle, divers types structurels de m\u00e9tabolites secondaires ont \u00e9t\u00e9 d\u00e9couverts dans les champignons Aspergillus, tels que les alcalo\u00efdes, les terp\u00e8nes, la lignine, les st\u00e9ro\u00efdes, les polyc\u00e9tones, les peptides cycliques, etc., et ils ont diverses activit\u00e9s biologiques telles que l'anti-tumorale, l'antibact\u00e9rienne, l'anti-inflammatoire, l'antivirale, etc. Aspergillus terreus est largement pr\u00e9sent dans la nature et est souvent isol\u00e9 de la rhizosph\u00e8re du sol, de la mati\u00e8re organique en d\u00e9composition et des environnements marins. Outre la production de la lovastatine, un m\u00e9dicament hypolipid\u00e9miant, et de ses interm\u00e9diaires, Aspergillus terreus peut \u00e9galement produire divers m\u00e9tabolites secondaires importants sur le plan \u00e9conomique. La m\u00eame bact\u00e9rie produit des m\u00e9tabolites diff\u00e9rents en fonction de la source et de l'environnement. Dans cette \u00e9tude, une souche d'Aspergillus terreus isol\u00e9e de la boue marine des \u00eeles Nansha a \u00e9t\u00e9 choisie comme objet de recherche, et le milieu solide du riz a \u00e9t\u00e9 utilis\u00e9 pour la fermentation \u00e0 grande \u00e9chelle. Ses m\u00e9tabolites secondaires ont \u00e9t\u00e9 isol\u00e9s, purifi\u00e9s et identifi\u00e9s, et l'activit\u00e9 neuroprotectrice in vitro des cellules PC12 bless\u00e9es par hypoxie\/r\u00e9oxyg\u00e9nation a \u00e9t\u00e9 \u00e9valu\u00e9e, afin de trouver des m\u00e9tabolites avec une structure nouvelle et une bonne activit\u00e9, et d'enrichir davantage les m\u00e9tabolites secondaires des champignons Aspergillus.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5411\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-143.png\" alt=\"\" width=\"779\" height=\"354\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-143.png 779w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-143-768x349.png 768w\" sizes=\"(max-width: 779px) 100vw, 779px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5412\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-130.png\" alt=\"\" width=\"775\" height=\"279\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-130.png 775w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-130-768x276.png 768w\" sizes=\"(max-width: 775px) 100vw, 775px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5413\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-123.png\" alt=\"\" width=\"775\" height=\"263\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-123.png 775w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-123-768x261.png 768w\" sizes=\"(max-width: 775px) 100vw, 775px\" \/>Dans cette \u00e9tude, les m\u00e9tabolites secondaires de la source marine Aspergillus terreus ont \u00e9t\u00e9 s\u00e9par\u00e9s et purifi\u00e9s par r\u00e9sine d'adsorption macroporeuse, gel de silice, chromatographie sur colonne de gel et m\u00e9thodes liquides semi-pr\u00e9paratives. Treize compos\u00e9s ont \u00e9t\u00e9 isol\u00e9s et identifi\u00e9s, parmi lesquels les compos\u00e9s 1 \u00e0 3 \u00e9taient des d\u00e9riv\u00e9s de la \u03b3-butyrolactone, le compos\u00e9 4 \u00e9tait une classe de d\u00e9riv\u00e9s mal\u00e9imides (2,5-pyrrolidone) d'alcalo\u00efdes naturels marins, le compos\u00e9 5 \u00e9tait la lovastatine, un m\u00e9dicament de la classe des statines, le compos\u00e9 6 \u00e9tait un compos\u00e9 terp\u00e9nique et le compos\u00e9 7 \u00e9tait un compos\u00e9 de benzoate de m\u00e9thyle. Ses donn\u00e9es RMN ont \u00e9t\u00e9 rapport\u00e9es pour la premi\u00e8re fois. Les compos\u00e9s 8 \u00e0 12 sont cinq dic\u00e9topip\u00e9razines, dont les compos\u00e9s 8 et 9 sont des thiodic\u00e9topip\u00e9razines, et le compos\u00e9 13 est un compos\u00e9 benzopyranone. Des tests pr\u00e9liminaires d'activit\u00e9 neuroprotectrice in vitro ont montr\u00e9 que les compos\u00e9s 1, 3, 5, 6 et 7 peuvent r\u00e9duire de mani\u00e8re significative les dommages cellulaires caus\u00e9s par le stress oxydatif. Cette \u00e9tude a examin\u00e9 l'activit\u00e9 neuroprotectrice des m\u00e9tabolites secondaires et des compos\u00e9s individuels dans les produits de fermentation du riz d'Aspergillus oryzae, fournissant une r\u00e9f\u00e9rence scientifique pour une exploration plus approfondie de la diversit\u00e9 chimique des m\u00e9tabolites secondaires d'Aspergillus oryzae \u00e0 l'avenir.<\/p>","protected":false},"excerpt":{"rendered":"<p>Study on secondary metabolites of marine fungus Aspergillus terreus In recent years, marine natural products have attracted the attention of chemists and biologists around the world. More than 16000 marine natural products have been isolated and identified from marine organisms, and marine microorganisms are considered a valuable source for producing new antibiotics, anti-tumor and anti-inflammatory [&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 secondary metabolites of marine fungus Aspergillus terreus - 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\/etude-sur-les-metabolites-secondaires-du-champignon-marin-aspergillus-terreus\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on secondary metabolites of marine fungus Aspergillus terreus - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on secondary metabolites of marine fungus Aspergillus terreus In recent years, marine natural products have attracted the attention of chemists and biologists around the world. 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