{"id":8564,"date":"2024-08-14T16:36:31","date_gmt":"2024-08-14T16:36:31","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8564"},"modified":"2024-08-14T16:36:31","modified_gmt":"2024-08-14T16:36:31","slug":"guizhou-tianming-jing","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/guizhou-tianming-jing\/","title":{"rendered":"Forskning i de kemiske komponenter og den antibakterielle aktivitet af Guizhou Tianming Jing"},"content":{"rendered":"<p>Forskning i de kemiske komponenter og den antibakterielle aktivitet af Guizhou Tianming Jing<br \/>\nSl\u00e6gten Carpesium i Asteraceae-familien er en fler\u00e5rig urt med ca. 21 arter p\u00e5 verdensplan, hvoraf nogle f\u00e5 arter er fordelt i Eurasien og de fleste i det centrale Asien. Is\u00e6r i den sydvestlige del af Kina er der rigelige planteressourcer. Blandt dem er Carpesium, tobaksr\u00f8rgr\u00e6s og guld\u00f8re blevet opf\u00f8rt som lovligt anerkendte l\u00e6geplanter i Kina. Carpesium faberi i Guizhou har l\u00e6nge v\u00e6ret brugt som folkemedicin p\u00e5 grund af sine h\u00e6mostatiske, antiparasit\u00e6re, antiinflammatoriske og afgiftende egenskaber. If\u00f8lge litteraturen er der blevet isoleret mindst 277 forbindelser fra planter af Tianming Jing-sl\u00e6gten, herunder terpener, flavonoider, fenoler, steroider osv. Blandt dem blev 37 forbindelser isoleret fra Guizhou Tianming Jing, hvor sesquiterpener er den vigtigste aktive ingrediens. Farmakologiske unders\u00f8gelser har vist, at sesquiterpener har forskellige biologiske aktiviteter s\u00e5som antitumor-, antimalaria-, antiinflammatoriske og antibakterielle virkninger. I de senere \u00e5r har aktivitetsrapporterne for Guizhou Tianming Jing prim\u00e6rt fokuseret p\u00e5 antitumor- og antiinflammatoriske aktiviteter, og dens antibakterielle aktivitet er endnu ikke blevet rapporteret. For at fremme den omfattende udvikling og udnyttelse af Tianming Jing-planteressourcer udf\u00f8rte denne unders\u00f8gelse kemisk sammens\u00e6tningsforskning p\u00e5 hele planten af Tianming Jing indsamlet fra Kaili, Guizhou, og testede den antibakterielle aktivitet af de opn\u00e5ede forbindelser.<\/p>\n<p>Ved hj\u00e6lp af forskellige kromatografiske metoder blev 14 forbindelser isoleret og identificeret fra den Guizhou-producerede Tianming Jing, som vist i figur 1, herunder sesquiterpener, diterpener, steroider og andre komponenter. Forbindelserne 2 og 7-14 blev opn\u00e5et fra denne plante for f\u00f8rste gang. Screening for antibakteriel aktivitet af isolerede forbindelser. Ved hj\u00e6lp af dobbeltfortyndingsmetoden blev den antibakterielle aktivitet af forbindelsen mod Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Bacillus subtilis og Candida albicans bestemt. Stammen i logaritmisk v\u00e6kstfase blev brugt, og alle pr\u00f8ver blev opl\u00f8st i DMSO for at fremstille en l\u00e6gemiddelopl\u00f8sning p\u00e5 15,36 mg\/ml. Aktivitetstestresultaterne viste, at forbindelse 1 havde svag antibakteriel aktivitet mod Bacillus subtilis med en MIC-v\u00e6rdi p\u00e5 256 \u00b5 g\/mL. Forbindelse 10 og 6 viste svag aktivitet mod Candida albicans med en MIC-v\u00e6rdi p\u00e5 128 \u00b5 g\/mL for forbindelse 10 og 128 \u00b5 g\/mL for forbindelse 6. De resterende forbindelser viste ikke antibakteriel aktivitet. Denne forskning har beriget den kemiske sammens\u00e6tning og biologiske aktivitet af Guizhou Tianming Jing og givet referencematerialer til den videre forskning og udvikling.<\/p>","protected":false},"excerpt":{"rendered":"<p>Research on the Chemical Components and Antibacterial Activity of Guizhou Tianming Jing The genus Carpesium in the Asteraceae family is a perennial herb with approximately 21 species worldwide, with a few species distributed in Eurasia and the majority in central Asia. Especially in the southwestern region of China, there are abundant plant resources. Among them, [&hellip;]<\/p>\n","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>Research on the Chemical Components and Antibacterial Activity of Guizhou Tianming Jing - 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\/guizhou-tianming-jing\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research on the Chemical Components and Antibacterial Activity of Guizhou Tianming Jing - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Research on the Chemical Components and Antibacterial Activity of Guizhou Tianming Jing The genus Carpesium in the Asteraceae family is a perennial herb with approximately 21 species worldwide, with a few species distributed in Eurasia and the majority in central Asia. 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