{"id":8715,"date":"2024-08-14T19:22:24","date_gmt":"2024-08-14T19:22:24","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8715"},"modified":"2024-08-14T19:22:24","modified_gmt":"2024-08-14T19:22:24","slug":"bacterial-strains-for-the-preparation-of-forsythia-suspensa-from-forsythia-suspensa-glycosides-in-human-gut-microbiota","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/bakteriestammer-til-fremstilling-af-forsythia-suspensa-fra-forsythia-suspensa-glykosider-i-menneskets-tarmmikrobiota\/","title":{"rendered":"Screening og immobilisering af bakteriestammer til fremstilling af Forsythia suspensa fra Forsythia suspensa-glykosider i menneskets tarmmikrobiota"},"content":{"rendered":"<p>Screening og immobilisering af bakteriestammer til fremstilling af Forsythia suspensa fra Forsythia suspensa-glykosider i menneskets tarmmikrobiota<br \/>\nForsythia suspensa findes hovedsageligt i traditionelle kinesiske l\u00e6gemidler som Forsythia suspensa, Osmanthus fragrans, Chrysanthemum morifolium og granat\u00e6blefr\u00f8. I de senere \u00e5r har det vist sig, at forsythialipin har en r\u00e6kke farmakologiske aktiviteter, s\u00e5som antiinflammatorisk aktivitet, h\u00e6mning af spredning af humane lungekr\u00e6ftcellelinjer, h\u00e6mning af spredning og migration af kr\u00e6ftceller i bugspytkirtlen og regulering af det systoliske og diastoliske blodtryk hos spontant hypertensive rotter. Forsythia suspensa er et glykosid, der stammer fra deglykosylering af Forsythia suspensa (se figur 1). Quan, Mao et al. fandt, at Forsythia suspensa har bedre antiinflammatoriske og anticancereffekter end Forsythia suspensa. Desuden fandt Ye et al. ud af, at Forsythia suspensa har en h\u00f8jere biotilg\u00e6ngelighed end Forsythia suspensa. P\u00e5 nuv\u00e6rende tidspunkt er der to hovedmetoder til fremstilling af Forsythia suspensa: direkte udvinding fra planter og omdannelse gennem Forsythia suspensa-glykosider. Wang et al. fremstillede Forsythia suspensa-ekstrakt ved at fermentere Forsythia suspensa-blade. Mei et al. screenede en skimmelstamme fra jorden, som kan omdanne forsythin til forsythin, og fremstillede ogs\u00e5 forsythin ved hj\u00e6lp af cellulase eller syrehydrolyse af forsythin. Ovenst\u00e5ende metoder har dog alle nogle ulemper, s\u00e5som at tils\u00e6tning af enzymer let for\u00e5rsager emulgering, hvilket g\u00f8r det vanskeligt at adskille og forberede produkterne; syre og skimmel kan for\u00e5rsage ustabilitet af Forsythia suspensa og producere biprodukter. Baseret p\u00e5 ovenst\u00e5ende grunde er der i \u00f8jeblikket ingen enkel, gennemf\u00f8rlig, komplet og p\u00e5lidelig konverteringsmetode, der skal forbedres yderligere.<\/p>\n<p>Der er rapporter om, at saminkubation af Forsythia suspensa glycosid med humane tarmbakterier kan metabolisere og producere Forsythia suspensa. Desuden kan Forsythia suspensa metaboliseres yderligere til sm\u00e5 molekyl\u00e6re stoffer. Derfor har denne unders\u00f8gelse til form\u00e5l at screene bakterier fra menneskets tarmmikrobiota, der effektivt kan omdanne Forsythia suspensa-glykosider til Forsythia suspensa-lipider, for at kompensere for manglerne ved eksisterende metoder og l\u00e6gge grunden til den videre udvikling og udnyttelse af Forsythia suspensa-lipider.<\/p>\n<p>For det f\u00f8rste har vi i screeningsunders\u00f8gelsen p\u00e5 grund af den antibakterielle virkning af Forsythia suspensa glycosid tilsat en vis m\u00e6ngde Forsythia suspensa glycosid til b\u00e5de det flydende dyrkningsmedium, der blev brugt til den indledende screening, og det pladekulturmedium, der blev brugt til den sekund\u00e6re screening. Dette kan h\u00e6mme v\u00e6ksten af stammer, der ikke er venlige over for Forsythia suspensa glycosid, hvilket til en vis grad indskr\u00e6nker omfanget af screeningen. For det andet har tidligere unders\u00f8gelser vist, at Forsythia suspensa-glykosider, n\u00e5r de omdannes til Forsythia suspensa-lipider af tarmbakterier, fortsat bliver metaboliseret og producerer biprodukter. Den enkelte stamme, der blev screenet i denne unders\u00f8gelse, kan opretholde produktets stabilitet inden for 20 timer efter omdannelse af Forsythia suspensa-glykosid til Forsythia suspensa-glykosid uden yderligere metabolisme eller dannelse af biprodukter. Denne metode overvinder ulempen ved fortsat metabolisme af Forsythia suspensa i eksisterende mikrobielle transformationsmetoder og introducerer ikke overskydende funktionelle grupper. Igen er Escherichia coli en gramnegativ fakultativ anaerob bakterie, der er blevet genmanipuleret som en manipuleret bakterie p\u00e5 grund af dens fremragende v\u00e6kstaktivitet og evne til effektivt at udnytte billige kulstofkilder. De fakultative anaerobe egenskaber er af stor betydning for fermenteringsteknik, og den Escherichia coli, der blev screenet i denne unders\u00f8gelse, besidder begge disse egenskaber. Endelig brugte vi ogs\u00e5 metoden med at immobilisere mikroorganismer til at immobilisere stammen SXUXJ-1 og optimerede produktionsprocessen for i sidste ende at producere en meget praktisk bakteriekugle. Under optimale omdannelsesbetingelser kan Forsythia suspensa glycosid omdannes fuldst\u00e6ndigt p\u00e5 ca. 25 timer. Den immobiliserede bakteriekugletransformationsmetode er en enkel, effektiv og milj\u00f8venlig metode, og det transformerede produkt Forsythia suspensa er let at udvinde og adskille, derfor har det et meget godt anvendelsesperspektiv.<\/p>","protected":false},"excerpt":{"rendered":"<p>Screening and immobilization of bacterial strains for the preparation of Forsythia suspensa from Forsythia suspensa glycosides in human gut microbiota Forsythia suspensa is mainly found in traditional Chinese medicines such as Forsythia suspensa, Osmanthus fragrans, Chrysanthemum morifolium, and pomegranate seeds. In recent years, it has been found that forsythialipin has a variety of pharmacological activities, [&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>Screening and immobilization of bacterial strains for the preparation of Forsythia suspensa from Forsythia suspensa glycosides in human gut microbiota - 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\/bakteriestammer-til-fremstilling-af-forsythia-suspensa-fra-forsythia-suspensa-glykosider-i-menneskets-tarmmikrobiota\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Screening and immobilization of bacterial strains for the preparation of Forsythia suspensa from Forsythia suspensa glycosides in human gut microbiota - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Screening and immobilization of bacterial strains for the preparation of Forsythia suspensa from Forsythia suspensa glycosides in human gut microbiota Forsythia suspensa is mainly found in traditional Chinese medicines such as Forsythia suspensa, Osmanthus fragrans, Chrysanthemum morifolium, and pomegranate seeds. 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