{"id":7923,"date":"2024-08-11T09:44:28","date_gmt":"2024-08-11T09:44:28","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=7923"},"modified":"2024-08-11T09:44:28","modified_gmt":"2024-08-11T09:44:28","slug":"changguan-hongshan-tea","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/changguan-hongshan-tea\/","title":{"rendered":"Unders\u00f8gelse af den kemiske sammens\u00e6tning af Changguan Hongshan te-skiver"},"content":{"rendered":"

Unders\u00f8gelse af den kemiske sammens\u00e6tning af Changguan Hongshan te-skiver
\nCamellia longituba Chang er et fler\u00e5rigt lille tr\u00e6 i Camellia-sl\u00e6gten i Theaceae-familien. Den blev f\u00f8rste gang rapporteret af professor Zhang Hongda fra Sun Yat sen University i 1990, og typeeksemplaret blev indsamlet fra Enshi i Hubei-provinsen. If\u00f8lge Volume 49, Volume 3 of the Flora of China er der ca. 36 sl\u00e6gter og 700 plantearter i Theaceae-familien. Theaceae-sl\u00e6gten er den st\u00f8rste i Theaceae-familien, og der er 238 arter af Theaceae-planter i Kina, hovedsageligt fordelt i sydvest til syd\u00f8st, med det h\u00f8jeste antal i Yunnan, Guangxi, Guangdong og Sichuan. De kemiske komponenter i Camellia-planter omfatter hovedsageligt flavonoider, saponiner, polyfenoler, plantesteroler, fedtsyrer og alkaloider. Blandt dem er flavonoider hovedsageligt flavonoler, hvor quercetin, kaempferol og catechiner er de mest almindelige; De vigtigste saponinkomponenter er pentacykliske triterpenoid-saponiner af oleanan-typen. Den biologiske aktivitet manifesterer sig i forskellige aspekter som antibakteriel, antimutation, anticancer, maves\u00e5r, antioxidant og lipids\u00e6nkende.
\nUreatransport\u00f8rfamilien (UT) er en type kanalproteinmolekyle, der transporterer urinstof (urea). I \u00f8jeblikket er to familier, UT-A (UT-A1, UT-A2, UT-A3, UT-A4, UT-A5 og UT-A6) og UT-B, blevet karakteriseret. UT'er spiller en vigtig rolle i nyrernes urinstofcyklus, idet de etablerer en gradient for urinstofkoncentrationen i nyremarvv\u00e6vet og deltager i mekanismen for urinkoncentration. Urinstofkoncentrationen og det osmotiske tryk i nyremarvsv\u00e6vet hos UT-B knockout-modelmus blev reduceret, og den nedsatte urinkoncentrationsevne p\u00e5virkede ikke andre nyrefunktioner og clearancehastigheden for andre vigtige opl\u00f8ste stoffer (Na+, K+, Cl -) i kroppen. Derfor kan den h\u00e6mmende effekt af UT-B \u00f8ge urinproduktionen uden at for\u00e5rsage kaliumtab eller p\u00e5virke v\u00e6ske-elektrolytbalancen. Denne unders\u00f8gelse screenede UT-B-h\u00e6mmere gennem en model for lysis af r\u00f8de blodlegemer.<\/p>\n

\"\"
\nSom et nyt medlem af Camellia-sl\u00e6gten har den kemiske sammens\u00e6tning af Changguan Camellia tidligere v\u00e6ret uoplyst. For yderligere at udforske de grundl\u00e6ggende medicinske stoffer i Camellia sinensis unders\u00f8gte denne unders\u00f8gelse dens kemiske sammens\u00e6tning og opn\u00e5ede 15 monomere forbindelser, herunder 9 flavonoider, 3 fenoliske syrer, 2 kromogener og deres derivater samt 1 kumarinforbindelse. Deres kemiske strukturer blev belyst ved hj\u00e6lp af teknikker som massespektrometri og kernemagnetisk resonansspektroskopi. Alle 15 forbindelser blev isoleret for f\u00f8rste gang fra Camellia sinensis-planter, og forbindelserne 1, 6, 7, 8, 9, 10 og 11 blev isoleret for f\u00f8rste gang fra Camellia-sl\u00e6gten. Ud fra typerne af isolerede forbindelser kan man se, at de vigtigste forbindelser i Camellia sinensis er flavonoider og fenolsyrer, som stort set er i overensstemmelse med typerne af forbindelser i Camellia-sl\u00e6gten. Forbindelsernes UT-B-h\u00e6mmende aktivitet blev screenet, og resultaterne viste, at gallussyre (14) og myricetin (15) havde betydelig vanddrivende aktivitet. Derfor b\u00f8r der i det efterf\u00f8lgende arbejde udf\u00f8res dybdeg\u00e5ende forskning i virkningsmekanismen for s\u00e5danne forbindelser. Denne artikel giver et materielt grundlag for den farmakologiske forskning i Changguan Hongshan-te og giver ogs\u00e5 en reference til udvikling og anvendelse af Changguan Hongshan-te.<\/p>","protected":false},"excerpt":{"rendered":"

Study on the Chemical Composition of Changguan Hongshan Tea Slices Camellia longituba Chang is a perennial small tree in the Camellia genus of the Theaceae family. It was first reported by Professor Zhang Hongda of Sun Yat sen University in 1990, and the type specimen was collected from Enshi, Hubei Province. According to Volume 49, […]<\/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 Changguan Hongshan Tea Slices - 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\/changguan-hongshan-tea\/\" \/>\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 Changguan Hongshan Tea Slices - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Chemical Composition of Changguan Hongshan Tea Slices Camellia longituba Chang is a perennial small tree in the Camellia genus of the Theaceae family. It was first reported by Professor Zhang Hongda of Sun Yat sen University in 1990, and the type specimen was collected from Enshi, Hubei Province. 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