{"id":8159,"date":"2024-08-11T19:46:48","date_gmt":"2024-08-11T19:46:48","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8159"},"modified":"2024-08-11T19:46:48","modified_gmt":"2024-08-11T19:46:48","slug":"a-new-phenolic-acid-glycoside-in-the-xylem-of-gallbladder-wood","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/et-nyt-fenolisk-syreglykosid-i-xylemet-i-galdeblaeretrae\/","title":{"rendered":"Et nyt fenolisk syreglykosid i xylemet i galdebl\u00e6retr\u00e6"},"content":{"rendered":"<p>Nauclea officinalis (Pierre ex Pitard Merr. et Chun), ogs\u00e5 kendt som ibenholt, bj\u00f8rnegalle, bj\u00f8rnegaldetr\u00e6 osv., er en plante af Rubiaceae-familien i Nauclea L.-sl\u00e6gten. Den produceres hovedsageligt p\u00e5 Hainan og er sporadisk udbredt i Guangdong, Guangxi og andre steder. Det er den eneste indf\u00f8dte ibenholtplante i Kina. Danmu er en karakteristisk Li-medicin i Hainan-provinsen og er en af de vigtigste traditionelle Li-medicinske planter, der er unders\u00f8gt i Hainan-provinsen. Den har en bitter smag og en kold natur, og dens virkning er at fjerne varme, afgifte, reducere h\u00e6velser og lindre smerter. Li-folket bruger den i vid udstr\u00e6kning til fork\u00f8lelse og ekstern antibakteriel desinfektion. I dag bruges den ofte i klinisk praksis til behandling af sygdomme som fork\u00f8lelse og feber, akut halsbet\u00e6ndelse, pharyngitis, bronkitis og lungebet\u00e6ndelse. Hovedkomponenterne er alkaloider, fenoliske syrer, pentacykliske triterpenoider og flavonoider. Moderne farmakologiske eksperimenter har vist, at galdebl\u00e6retr\u00e6 har antiinflammatoriske, anti-celleproliferative og h\u00e6mmende virkninger p\u00e5 mavesyresekretionen. P\u00e5 nuv\u00e6rende tidspunkt fokuserer forskningen i galdebl\u00e6retr\u00e6 hovedsageligt p\u00e5 alkaloiddelen, mens der er mindre opm\u00e6rksomhed p\u00e5 den ikke-alkaloide del, is\u00e6r det h\u00f8je indhold af pol\u00e6re forbindelser (n-butanol-ekstrakter) og deres biologiske aktiviteter i kliniske pr\u00e6parater af galdebl\u00e6retr\u00e6. I denne unders\u00f8gelse blev der isoleret og identificeret forbindelser fra n-butanol-ekstraktet af galdebl\u00e6ren, hovedsageligt fenoliske syreforbindelser. Tidligere rapporter har vist, at disse forbindelser har gode antitumor- og hypoglyk\u00e6miske virkninger. For yderligere at unders\u00f8ge den kemiske sammens\u00e6tning og aktivitet af n-butanol-ekstrakt fra xylem af medicinske dele af galdebl\u00e6ren blev den kemiske sammens\u00e6tning derfor isoleret og strukturelt identificeret, og den \u03b1-glukosidaseh\u00e6mmende aktivitet og cytotoksiske aktivitet blev unders\u00f8gt. Form\u00e5let er at skabe et videnskabeligt grundlag for udvikling, anvendelse og opdagelse af nye anvendelsesmuligheder for denne plante.<\/p>\n<p>&nbsp;<\/p>\n<p>Den medicinske del af galdebl\u00e6retr\u00e6 er xylemet, og i den farmaceutiske proces bruges vandekstraktion hovedsageligt til at fremstille ekstrakt af galdebl\u00e6retr\u00e6 som den medicinske del. Tidligere unders\u00f8gelser har vist, at hovedkomponenten i galdebl\u00e6retr\u00e6 er alkaloider, men der er relativt lidt forskning i andre typer forbindelser. Derfor er de meget pol\u00e6re ikke-alkaloide komponenter ogs\u00e5 v\u00e6rd at unders\u00f8ge n\u00e6rmere. I denne unders\u00f8gelse blev 15 forbindelser isoleret ved at knuse xylemet i galdebl\u00e6retr\u00e6. Forbindelserne 1-4 og 9-14 var phenolforbindelser, forbindelserne 5-6 var cykliske etherterpener, forbindelsen 7 var en ligninforbindelse, forbindelsen 8 var en sesquiterpenforbindelse, og forbindelsen 15 var en phenylpropanoidforbindelse. Forbindelse 1 er en ny forbindelse, og forbindelserne 1-4 og 6-8 blev isoleret fra denne plantesl\u00e6gt for f\u00f8rste gang. Resultaterne af in vitro-aktivitetsscreeningen viste, at forbindelserne 3, 7, 8, 13 og 14 udviste svag alfa-glucosidaseh\u00e6mmende aktivitet, og alle forbindelserne havde ingen cytotoksisk aktivitet. Resultaterne af denne unders\u00f8gelse var de f\u00f8rste til at unders\u00f8ge \u03b1-glucosidaseh\u00e6mning og cytotoksisk aktivitet af store pol\u00e6re ikke-alkaloide kemiske komponenter i galdebl\u00e6retr\u00e6, hvilket beriger mangfoldigheden af kemiske komponenter i galdebl\u00e6retr\u00e6. Det viste sig, at de udviste svag \u03b1-glucosidaseh\u00e6mmende aktivitet, hvilket giver reference til udvikling og udnyttelse af galdebl\u00e6retr\u00e6, en karakteristisk Li-medicin i Hainan, og udvider dets nye anvendelsesmuligheder.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nauclea officinalis (Pierre ex Pitard Merr. et Chun), also known as ebony, mountain bear gall, bear gall wood, etc., is a plant of the Rubiaceae family in the Nauclea L. genus. It is mainly produced in Hainan and sporadically distributed in Guangdong, Guangxi and other places. It is the only native ebony plant in China. [&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>A new phenolic acid glycoside in the xylem of Gallbladder wood - 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\/et-nyt-fenolisk-syreglykosid-i-xylemet-i-galdeblaeretrae\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A new phenolic acid glycoside in the xylem of Gallbladder wood - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Nauclea officinalis (Pierre ex Pitard Merr. et Chun), also known as ebony, mountain bear gall, bear gall wood, etc., is a plant of the Rubiaceae family in the Nauclea L. genus. 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It is mainly produced in Hainan and sporadically distributed in Guangdong, Guangxi and other places. It is the only native ebony plant in China. 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