{"id":5675,"date":"2024-08-04T20:30:33","date_gmt":"2024-08-04T20:30:33","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=5675"},"modified":"2024-08-04T20:30:33","modified_gmt":"2024-08-04T20:30:33","slug":"fungi","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/fungi\/","title":{"rendered":"Udvinding af polyfenoler fra Camellia oleifera og dens h\u00e6mning af almindelige plantepatogene svampe"},"content":{"rendered":"

Udvinding af polyfenoler fra Camellia oleifera og dens h\u00e6mning af almindelige plantepatogene svampe
\nCamellia oleifera er en fler\u00e5rig stedsegr\u00f8n busk, der tilh\u00f8rer Theaceae Mirb-familien og Camellia L.-sl\u00e6gten. Oliethe indeholder en stor m\u00e6ngde aktive stoffer som f.eks. polyfenoler, squalen, flavonoider og sporstoffer. P\u00e5 nuv\u00e6rende tidspunkt fokuserer folks udvikling og udnyttelse af oliethe hovedsageligt p\u00e5 oliethefr\u00f8 og oliethefr\u00f8olie, mens bladene af oliethe er blevet til affald.<\/p>\n

Polyfenoler henviser til forbindelser med flere fenoliske hydroxylgrupper i deres molekyl\u00e6re struktur, som er vidt udbredt i planternes r\u00f8dder, st\u00e6ngler, blade og frugter. De vigtigste derivater af polyfenoler er catechiner, som ogs\u00e5 indeholder fenoliske syrer, flavanoler og andre stoffer. Polyfenoler, som er en type sekund\u00e6r metabolit i planter, er et af de vigtigste biokemiske stoffer, som planter kan bruge til at modst\u00e5 invasioner af patogener. P\u00e5 nuv\u00e6rende tidspunkt er der mange unders\u00f8gelser af te-polyfenolers antibakterielle aktivitet p\u00e5 animalske bakterier, og det er blevet bredt anerkendt. Men det meste af forskningen i polyphenoler i teolie fokuserer kun p\u00e5 udvinding og indholdsbestemmelse af polyphenoler i kameliafr\u00f8olie, og der er en relativ mangel p\u00e5 forskning i deres antibakterielle aktivitet. Derfor blev der i denne unders\u00f8gelse udvundet polyfenoler fra Camellia oleifera og unders\u00f8gt deres h\u00e6mmende aktivitet og mekanisme mod plantepatogene svampe, hvilket giver et grundlag for udvikling af plantebaserede pesticider og gr\u00f8n forebyggelse og bek\u00e6mpelse af sygdomme. Forskning er gavnlig for at udvide den omfattende udvikling og udnyttelse af oliete-ressourcer samt anvendelsen af polyfenoler inden for biopesticider.<\/p>\n

\"\"\"\"\"\"\"\"\"\"De eksperimentelle resultater af polyphenolekstraktion fra Camellia oleifera viste, at forholdet mellem materiale og v\u00e6ske, ethanolkoncentration og ultralydstid havde en betydelig indvirkning p\u00e5 ekstraktionen af polyphenoler. Anvendelsen af \u03b2-cyclodextrin kan forbedre ekstraktionshastigheden af polyfenoler. De optimale procesbetingelser for den assisterede ekstraktion af polyfenoler fra Camellia oleifera ved hj\u00e6lp af \u03b2-cyclodextrin er: et fast-v\u00e6ske-forhold p\u00e5 1:30, ethanolkoncentration p\u00e5 60%, ultralydstid p\u00e5 60 minutter og \u03b2-cyclodextrin tils\u00e6tning af 0,80 g. Under disse forhold er ekstraktionshastigheden for polyfenoler 22,92%. Dette forskningsresultat kan give et teoretisk grundlag og en reference for assisteret ekstraktion af polyfenoler fra Camellia oleifera ved hj\u00e6lp af \u03b2-cyclodextrin. Denne unders\u00f8gelse indikerer, at polyfenolekstrakter kan h\u00e6mme v\u00e6kst og sporedannelse og spiring af almindelige plantepatogene svampe, \u00e6ndre hyfemorfologi og kolonifarve og \u00e6ndre permeabiliteten af patogene svampecellemembraner. Dette giver en ny mulighed for udvikling af svampemidler og genetisk modificerede sygdomsresistente planter.<\/p>","protected":false},"excerpt":{"rendered":"

Extraction of Polyphenols from Camellia oleifera and Its Inhibition on Common Plant Pathogenic Fungi Camellia oleifera is a perennial evergreen shrub belonging to the Theaceae Mirb family and Camellia L. genus. Oil tea contains a large amount of active substances, such as polyphenols, squalene, flavonoids, and trace elements. At present, people’s development and utilization of […]<\/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":"\nExtraction of Polyphenols from Camellia oleifera and Its Inhibition on Common Plant Pathogenic Fungi - 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\/fungi\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Extraction of Polyphenols from Camellia oleifera and Its Inhibition on Common Plant Pathogenic Fungi - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Extraction of Polyphenols from Camellia oleifera and Its Inhibition on Common Plant Pathogenic Fungi Camellia oleifera is a perennial evergreen shrub belonging to the Theaceae Mirb family and Camellia L. genus. 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