{"id":6731,"date":"2024-08-06T14:16:18","date_gmt":"2024-08-06T14:16:18","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=6731"},"modified":"2024-08-06T14:16:18","modified_gmt":"2024-08-06T14:16:18","slug":"dwarf-lespedeza","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/dwarf-lespedeza\/","title":{"rendered":"Unders\u00f8gelse af den kemiske sammens\u00e6tning af Dwarf Lespedeza"},"content":{"rendered":"

Unders\u00f8gelse af den kemiske sammens\u00e6tning af Dwarf Lespedeza
\nDer findes omkring 60 arter af Lespedeza-planter (b\u00e6lgplanter), som hovedsageligt er udbredt i \u00d8stasien, det nord\u00f8stlige Australien og Nordamerika. Plantning af planter af Lespedeza-sl\u00e6gten kan normalt bruges til at forhindre jorderosion. Der findes 25 arter af Lespedeza-planter i Kina. Nogle typer bruges som traditionelle l\u00e6geurter, f.eks. den bladsk\u00e6rende jernkost (almindeligvis kendt som Lespedeza cuneta), som l\u00e6nge har v\u00e6ret brugt i traditionel kinesisk medicin til at behandle dysenteri og hepatitis og til at beskytte lever, nyrer og lunger. Der er fundet flere typer kemiske komponenter i planter af Lespedeza-sl\u00e6gten, hovedsageligt flavonoider, herunder dihydroflavoner, flavonoloxygenglykosider, flavonoidkulstofglykosider, isoflavoner, dihydroflavoner, pterocarpaner, coumestan, homoisoflavanon, 2-phenylbenzo-furaner, lignin og andre phenolforbindelser. Dv\u00e6rg Lespedeza (L. forrestii) er hovedsageligt udbredt i provinserne Yunnan og Sichuan i Kina. P\u00e5 nuv\u00e6rende tidspunkt er der ingen rapporter om den kemiske sammens\u00e6tning af denne plante. For yderligere at afsl\u00f8re den kemiske sammens\u00e6tning af planter i Lespedeza-sl\u00e6gten blev hele plantens kemiske sammens\u00e6tning af dv\u00e6rg Lespedeza unders\u00f8gt for f\u00f8rste gang. For at forts\u00e6tte med at s\u00f8ge efter forbindelser med h\u00f8j antiinflammatorisk aktivitet fra planter screenede denne unders\u00f8gelse de kemiske komponenter i dv\u00e6rg-Lespedeza for antiinflammatorisk aktivitet.<\/p>\n

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\nTi forbindelser blev isoleret og identificeret fra methanolekstraktet af hele planten af dv\u00e6rg Lespedeza, hvoraf forbindelserne 1-5 var flavonolglykosider, 6-8 var flavonoide kulstofglykosider, 9 var isoflavoner og 10 var dihydroisoflavoner, som alle f\u00f8rst blev opdaget i dv\u00e6rg Lespedeza. Forbindelserne 1-4 og 6-9 blev fundet i l\u00e6geplanten L. cuneta, hvilket tyder p\u00e5 et t\u00e6t genetisk forhold mellem dv\u00e6rg-Lespedeza og L. cuneta. Derudover blev forbindelserne 1-10 screenet for antiinflammatorisk aktivitet, hvoraf 8 og 10 henholdsvis kan h\u00e6mme mRNA-ekspressionen af de inflammatoriske faktorer IL-6 og IL-1 \u03b2, hvilket viser en vis antiinflammatorisk aktivitet. Flavonoider er en vigtig klasse af antiinflammatoriske forbindelser. Relaterede unders\u00f8gelser har vist, at forbindelserne 1-4 og 6-9 kan ud\u00f8ve antiinflammatoriske virkninger gennem forskellige signalveje. Denne artikel viser, at forbindelse 8 kan ud\u00f8ve en vis antiinflammatorisk aktivitet ved at h\u00e6mme mRNA-ekspressionen af den inflammatoriske faktor IL-6, mens forbindelserne 1-4, 6, 7 og 9 har svagere effekter p\u00e5 mRNA-ekspressionen af de inflammatoriske faktorer IL-1 \u03b2, IL-6 og TNF - \u03b1. De antiinflammatoriske aktiviteter af forbindelserne 5 og 10 er rapporteret for f\u00f8rste gang i denne artikel. Denne unders\u00f8gelse afsl\u00f8rer for f\u00f8rste gang den kemiske sammens\u00e6tning af dv\u00e6rg-Lespedeza i sl\u00e6gten Lespedeza, hvilket kan give reference til den kemiske identifikation og udvikling af denne plante.<\/p>","protected":false},"excerpt":{"rendered":"

Study on the Chemical Composition of Dwarf Lespedeza There are about 60 species of Lespedeza plants (leguminous), mainly distributed in East Asia, northeastern Australia, and North America. Planting plants of the Lespedeza genus can usually be used to prevent soil erosion. There are 25 species of Lespedeza plants in China. Some types are used as […]<\/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 of Dwarf Lespedeza - 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\/da\/dwarf-lespedeza\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on the Chemical Composition of Dwarf Lespedeza - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Chemical Composition of Dwarf Lespedeza There are about 60 species of Lespedeza plants (leguminous), mainly distributed in East Asia, northeastern Australia, and North America. 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