{"id":6777,"date":"2024-08-06T14:36:55","date_gmt":"2024-08-06T14:36:55","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=6777"},"modified":"2024-08-06T14:36:55","modified_gmt":"2024-08-06T14:36:55","slug":"fungus-aspergillus-oryzae","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/fungus-aspergillus-oryzae\/","title":{"rendered":"En ny fenolisk glykosidforbindelse i svampen Aspergillus oryzae"},"content":{"rendered":"<p>En ny fenolisk glykosidforbindelse i svampen Aureobasidium pullulans (De Bary) Arnaud er en g\u00e6rlignende svamp, der findes i forskellige milj\u00f8er, s\u00e5som frugtoverflader eller tr\u00e6agtigt v\u00e6v og blade fra tidlig udvikling til modenhed. If\u00f8lge Index Fungorum h\u00f8rer denne svamp til Ascomycota, Pezizomycotina, Dothideomycetes, Dothideomycetidae og Dothideales. Biokontrolaktiviteten af dens svampe mod patogene bakterier i frugt, gr\u00f8ntsager og markopbevaring er blevet bredt rapporteret, s\u00e5som Botrytis cinerea og Penicillium expansum p\u00e5 \u00e6bler og Aspergillus niger p\u00e5 spiselige druer gennem A Pullulans blev kontrolleret betydeligt. Og den kan producere forskellige metabolitter, s\u00e5som pullulan-polysaccharid, melanin, encellet protein, mannitololie, poly(\u00e6blesyre), 2-propylakrylsyre, 8,9-dihydroxy-2-methyl-4H, 5H-pyranochron-4-on, 2-methylbernsteinsyre, hexol-1,2,3,4,5,6-hexol osv. Det er en naturlig biologisk kontrolressource med udviklings- og anvendelsesv\u00e6rdi. If\u00f8lge litteraturgennemgangen er det i \u00f8jeblikket kendt, at A Forskningen i pullulans' kemiske sammens\u00e6tning fokuserer hovedsageligt p\u00e5 udvinding af store molekyl\u00e6re stoffer, mens der er relativt f\u00e5 rapporter om sekund\u00e6re metabolitter. Derfor sigter denne artikel mod yderligere at unders\u00f8ge A Pullulans sekund\u00e6re metabolitter og deres antibakterielle aktivitet mod A Kemisk sammens\u00e6tningsanalyse blev udf\u00f8rt p\u00e5 ethylacetatfraktionen af pullulans faste fermenteringsprodukter, og det r\u00e5 ethylacetatekstrakt blev screenet for aktivitet for at give et teoretisk grundlag for efterf\u00f8lgende udvikling og udnyttelse.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6778\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-255.png\" alt=\"\" width=\"332\" height=\"447\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6779\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-213.png\" alt=\"\" width=\"331\" height=\"166\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6780\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-200.png\" alt=\"\" width=\"666\" height=\"167\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6781\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-178.png\" alt=\"\" width=\"662\" height=\"303\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6782\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-162.png\" alt=\"\" width=\"662\" height=\"583\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6783\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-148.png\" alt=\"\" width=\"337\" height=\"284\" \/>Svamp A Pullulans fast fermenteret ethylacetatekstrakt har antibakteriel aktivitet mod patogener af ginsengrod, ginsengrost, ginsengrod, majsst\u00e6ngelr\u00e5d, majsbladplet, tomatgr\u00e5skimmel og risst\u00e6ngelr\u00e5d. Blandt dem har det den bedste h\u00e6mmende effekt p\u00e5 patogenet ginsengrost og -r\u00e5ddenskab med en mindste h\u00e6mmende koncentration p\u00e5 1,88 mg\/ml. Fire forbindelser blev isoleret og identificeret fra ekstraktet, herunder en ny phenolisk glycosidforbindelse (1) og tre gibberellinforbindelser (2-4). Griseomycin er en neutral forbindelse og et aromatisk derivatantibiotikum. Mekanismen for dets antibakterielle virkning er at konkurrere med syntesen af svampecellers DNA og derved h\u00e6mme dens v\u00e6kst. P\u00e5 nuv\u00e6rende tidspunkt bruges det hovedsageligt til behandling af hudsygdomme og svampeinfektioner i stratum corneum, og dets antibakterielle aktivitet er ogs\u00e5 blevet unders\u00f8gt i forbindelse med landbrugssygdomme. Su Mingxing et al. og Liu Yun et al. fandt f.eks. ud af, at oxytetracyklin har en betydelig h\u00e6mmende effekt p\u00e5 v\u00e6ksten af Fusarium. If\u00f8lge litteraturrapporter har forbindelserne 2 og 3 en vis h\u00e6mmende effekt p\u00e5 Microsporum gypseum, mens forbindelse 4 har en svagere antibakteriel aktivitet mod Escherichia coli, Pseudomonas aeruginosa, Pseudomonas fluorescens og Staphylococcus epidermidis. Derfor spekuleres der i, at A Pullulans er forbindelser, der ud\u00f8ver antibakterielle effekter i biokontrolaktiviteten af landbrugssygdomme. I fremtiden vil der blive udf\u00f8rt aktivitetsscreening p\u00e5 de isolerede monomere forbindelser for at give A Pullulans et teoretisk grundlag for udvikling og udnyttelse af medicinsk teori og biologisk aktivitet.<\/p>","protected":false},"excerpt":{"rendered":"<p>A new phenolic glycoside compound in the fungus Aureobasidium pullulans (De Bary) Arnaud is a yeast like fungus that exists in different environments, such as fruit surfaces or woody tissues and leaves from early development to maturity. According to Index Fungorum, this fungus belongs to Ascomycota, Pezizomycotina, Dothideomycetes, Dothideomycetidae, and Dothideales. The biocontrol activity of [&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 novel phenolic glycoside compound in the fungus Aspergillus oryzae - 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\/fungus-aspergillus-oryzae\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A novel phenolic glycoside compound in the fungus Aspergillus oryzae - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"A new phenolic glycoside compound in the fungus Aureobasidium pullulans (De Bary) Arnaud is a yeast like fungus that exists in different environments, such as fruit surfaces or woody tissues and leaves from early development to maturity. According to Index Fungorum, this fungus belongs to Ascomycota, Pezizomycotina, Dothideomycetes, Dothideomycetidae, and Dothideales. 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