{"id":7109,"date":"2024-08-06T18:34:59","date_gmt":"2024-08-06T18:34:59","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=7109"},"modified":"2024-08-06T18:34:59","modified_gmt":"2024-08-06T18:34:59","slug":"grass-fruit-essential-oil","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/grass-fruit-essential-oil\/","title":{"rendered":"Optimering af ekstraktionsprocessen og komponentanalyse af \u00e6terisk olie fra gr\u00e6sfrugter"},"content":{"rendered":"<p>Optimering af ekstraktionsprocessen og komponentanalyse af \u00e6terisk olie fra gr\u00e6sfrugter<br \/>\nAmomum tsao ko er en fler\u00e5rig urteagtig plante af ingef\u00e6rfamilien og kardemommesl\u00e6gten. Det er en traditionel medicinsk og spiselig plante i Kina, hovedsageligt udbredt i Yunnan, Guizhou, Sichuan og det vestlige Guangxi. Duften af gr\u00e6s og frugt er gentagne gange blevet brugt i recepter til forebyggelse af epidemier i de senere \u00e5r, da den hj\u00e6lper med at rense kroppen, fordrive fugt og styrke milten. I TCM-behandlingsplanen for diagnose- og behandlingsplan for ny coronavirus-lungebet\u00e6ndelse har de lette, almindelige og tunge recepter alle anvendelse af Caoguo. Den indledende kliniske receptanvendelse n\u00e5ede 46,43%, og den kliniske receptanvendelse p\u00e5 mellemlang sigt n\u00e5ede 24,00%, hvilket g\u00f8r det til et af l\u00e6gemidlerne med h\u00f8j brugsfrekvens. Gr\u00e6sfrugter er rige p\u00e5 forskellige kemiske komponenter med farmakologiske virkninger, hovedsageligt flygtige olier samt fenoler, steroider osv. Den flygtige \u00e6teriske olie af gr\u00e6sfrugt, som er det vigtigste aktive stof i gr\u00e6sfrugt, omfatter hovedsageligt forbindelser som phenylpropanoider, sesquiterpener, monoterpener og fedtsyrer, som har farmakologiske virkninger som antioxidant, antibakteriel, antitumor, antiviral, antiastmatisk og sliml\u00f8sende.<\/p>\n<p>Almindelige metoder til udvinding af \u00e6terisk olie fra gr\u00e6sfrugter omfatter mikrob\u00f8lgeassisteret ekstraktion, superkritisk kuldioxidekstraktion, organisk opl\u00f8sningsmiddelekstraktion, ultralydsassisteret ekstraktion, dampdestillation osv. Den mest repr\u00e6sentative mikrob\u00f8lgeassisterede ekstraktionsmetode er den mikrob\u00f8lgeopl\u00f8sningsmiddelfrie ekstraktionsmetode, som optimerer ekstraktionsprocessen af \u00e6terisk olie fra gr\u00e6sfrugter ved at unders\u00f8ge forhold som mikrob\u00f8lgeeffekt, mikrob\u00f8lgestr\u00e5lingstid og ekstraktionstemperatur. Selvom denne metode har fordelene ved kort ekstraktionstid og lavt energiforbrug, har den ogs\u00e5 problemet med vanskeligheder med at opn\u00e5 industrialisering. Superkritisk CO2-ekstraktion kr\u00e6ver normalt overvejelse af faktorer som ekstraktionstryk, ekstraktionstemperatur, ekstraktionstid, CO2-str\u00f8mningshastighed osv. og har h\u00f8je krav til udstyr. Dampdestillationsmetoden er den mest anvendte metode til udvinding af \u00e6terisk olie fra gr\u00e6sfrugter, som er enkel, sikker og velegnet til udvinding af flygtige komponenter med h\u00f8je kogepunkter, der er uopl\u00f8selige eller letopl\u00f8selige i vand. Ultralydassisteret metode kombineres normalt med organisk opl\u00f8sningsmiddelekstraktionsmetode, kendt som ultralyd (assisteret) organisk opl\u00f8sningsmiddelekstraktionsmetode. De optimale procesparametre screenes ved at unders\u00f8ge typen af ekstraktionsopl\u00f8sningsmiddel, ultralydseffekt, ekstraktionstid og ekstraktionstemperatur. For at bestemme de optimale ekstraktionsbetingelser bruges forskellige metoder ofte til optimering i forskning. I de senere \u00e5r har RSM-modellen (Response Surface Methodology) v\u00e6ret den mest anvendte, og der er opn\u00e5et en stor m\u00e6ngde data gennem eksperimentelt design og praktisk drift. De optimale betingelser bestemmes ved at tilpasse funktionen og etablere modellen gennem flere kvadratiske line\u00e6re regressionsligninger. Med udviklingen af algoritmer er BP-ANN-modeller (backpropagation artificial neural network) blevet st\u00e6rke v\u00e6rkt\u00f8jer til optimering af udvindingsprocesser p\u00e5 grund af deres fremragende tilpasning, n\u00f8jagtighed og forudsigelsesevne. Denne model kan h\u00e5ndtere st\u00f8jende og manglende data godt og kan l\u00e6re af eksperimentelle data. BP-ANN-modellen har h\u00f8j n\u00f8jagtighed i forudsigelsen af udvindingshastigheder og st\u00e6rk optimeringsevne i tilpasningen af eksperimentelle data; den har uovertrufne fordele i forhold til RSM-modeller i optimeringseksperimenter med flere faktorer og flere niveauer. Ved at kombinere genetisk algoritme (GA) kan der opn\u00e5s global optimering for at opn\u00e5 de optimale procesbetingelser. Tidligere unders\u00f8gelser har sj\u00e6ldent brugt BP-ANN-metoden til at optimere udvindingsprocessen af \u00e6terisk olie fra gr\u00e6sfrugter. Denne optimeringsmetode kan give teoretisk reference til efterf\u00f8lgende relateret arbejde.<\/p>\n<p>I denne unders\u00f8gelse blev der anvendt dampdestillation og ultralydsmetode med organisk opl\u00f8sningsmiddel til at udvinde \u00e6teriske olier fra gr\u00e6sfrugter. I dette eksperiment blev den \u00e6teriske olieekstraktor, der blev brugt til at udvinde \u00e6teriske olier fra gr\u00e6sfrugter ved dampdestillation, forbedret for at s\u00e6nke temperaturen i den kondenserende del under udvindingsprocessen. Ved at udf\u00f8re enkeltfaktoreksperimenter, optimere udvindingsbetingelserne ved hj\u00e6lp af RSM og BP-ANN og sammenligne de optimerede modeller blev de optimale procesparametre opn\u00e5et for at give datast\u00f8tte til effektiv udvinding og pr\u00e6cis anvendelse af \u00e6terisk olie fra gr\u00e6sfrugter; Ved at analysere sammens\u00e6tningen af \u00e6terisk olie i Caoguo ved hj\u00e6lp af gaskromatografi-massespektrometri (GC-MS), udforske dens farmakologiske stofgrundlag og fremme den moderne anvendelse af traditionel kinesisk medicin Caoguo.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7110\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-280.png\" alt=\"\" width=\"789\" height=\"166\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-280.png 789w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-280-768x162.png 768w\" sizes=\"(max-width: 789px) 100vw, 789px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7111\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-231.png\" alt=\"\" width=\"788\" height=\"270\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-231.png 788w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-231-768x263.png 768w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7112\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-218.png\" alt=\"\" width=\"784\" height=\"251\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-218.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-218-768x246.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7113\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-197.png\" alt=\"\" width=\"784\" height=\"402\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-197.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-197-768x394.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7114\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-179.png\" alt=\"\" width=\"789\" height=\"333\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-179.png 789w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-179-768x324.png 768w\" sizes=\"(max-width: 789px) 100vw, 789px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7115\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-163.png\" alt=\"\" width=\"788\" height=\"250\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-163.png 788w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-163-768x244.png 768w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7116\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-148.png\" alt=\"\" width=\"786\" height=\"429\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-148.png 786w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-148-768x419.png 768w\" sizes=\"(max-width: 786px) 100vw, 786px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7117\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-134.png\" alt=\"\" width=\"788\" height=\"354\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-134.png 788w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-134-768x345.png 768w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7118\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-126.png\" alt=\"\" width=\"784\" height=\"261\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-126.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-126-768x256.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7119\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-99.png\" alt=\"\" width=\"784\" height=\"260\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-99.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-99-768x255.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7120\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-93.png\" alt=\"\" width=\"786\" height=\"717\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-93.png 786w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-93-768x701.png 768w\" sizes=\"(max-width: 786px) 100vw, 786px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7121\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-77.png\" alt=\"\" width=\"784\" height=\"205\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-77.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-77-768x201.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7122\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/13-65.png\" alt=\"\" width=\"784\" height=\"477\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/13-65.png 784w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/13-65-768x467.png 768w\" sizes=\"(max-width: 784px) 100vw, 784px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7123\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/14-51.png\" alt=\"\" width=\"787\" height=\"692\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/14-51.png 787w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/14-51-768x675.png 768w\" sizes=\"(max-width: 787px) 100vw, 787px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7124\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/15-38.png\" alt=\"\" width=\"788\" height=\"93\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/15-38.png 788w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/15-38-768x91.png 768w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7125\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/16-27.png\" alt=\"\" width=\"787\" height=\"709\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/16-27.png 787w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/16-27-768x692.png 768w\" sizes=\"(max-width: 787px) 100vw, 787px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7126\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/17-22.png\" alt=\"\" width=\"787\" height=\"303\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/17-22.png 787w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/17-22-768x296.png 768w\" sizes=\"(max-width: 787px) 100vw, 787px\" \/><\/p>\n<p>Dampdestillationsmetoden og ultralydsmetoden med organisk opl\u00f8sningsmiddel blev brugt og sammenlignet til at udvinde \u00e6terisk olie af gr\u00e6sfrugter. Ekstraktionsbetingelserne for \u00e6terisk olie af gr\u00e6sfrugt blev optimeret af enkeltfaktor, RSM og BP-ANN. De optimale procesparametre for dampdestillation og ultralyd organisk opl\u00f8sningsmiddel metode var ibl\u00f8ds\u00e6tning tid p\u00e5 53,00min, destillation tid p\u00e5 72,00min, v\u00e6ske-faststof-forhold p\u00e5 11,00mL\/g, ultralyd effekt p\u00e5 150W, ultralyd tid p\u00e5 27min, v\u00e6ske-faststof-forhold p\u00e5 6,3mL\/g. Under disse betingelser var ekstraktionshastighederne for \u00e6terisk olie af gr\u00e6sfrugt henholdsvis 1,59% og 3,70%. De eksperimentelle resultater viser, at sammenlignet med RSM-modellen har BP-ANN-modellen en bedre ydeevne i b\u00e5de optimeringsevne og forudsigelsesn\u00f8jagtighed og kan forbedre forudsigelsesevnen og stabiliteten betydeligt. Den har h\u00f8j gennemf\u00f8rlighed og \u00e5benlyse fordele ved h\u00e5ndtering af multifaktorproblemer.<br \/>\nKomponenterne i \u00e6terisk olie af gr\u00e6sfrugter udvundet ved dampdestillation og ultralydsmetode med organisk opl\u00f8sningsmiddel blev identificeret og sammenlignet med GC-MS med henholdsvis 34 og 43 typer. Blandt dem viste det sig, at 1,8-eukalyptol havde et h\u00f8jere indhold, s\u00e5vel som \u03b1-carvacen, 4-propylbenzaldehyd, transcitral, trans-2-decenal, \u03b1-terpineol, cis-citral, \u03b2-pinen, transgeraniol, cis-geraniol, acetatgeraniol, (-) -4-terpineol osv. Hovedkomponenten, 1,8-eucalyptol, kan v\u00e6re et vigtigt grundlag for dets farmakologiske virkninger som f.eks. antibakterielle, antitumorale og antivirale virkninger. Den har et h\u00f8jt indhold af \u00e6terisk olie fra gr\u00e6sfrugter og har et stort udviklingspotentiale. Forskning har vist, at \u00e6terisk olie fra gr\u00e6sfrugter kan interagere med SARS-CoV-2 spike-protein RBD i aerosoler, blokere interaktionen mellem RBD og hACE2, h\u00e6mme deres binding til receptorer, afsk\u00e6re transmissionsveje og have et stort potentiale i at blokere virus-aerosoltransmission. Denne unders\u00f8gelse kan give nye ideer til den videre udvikling og udnyttelse af \u00e6terisk olie fra gr\u00e6sfrugter, fremme dens anvendelsesinnovation og udvide dens vej mod modernisering af traditionel kinesisk medicin.<\/p>","protected":false},"excerpt":{"rendered":"<p>Optimization of Extraction Process and Component Analysis of Grass Fruit Essential Oil Amomum tsao ko is a perennial herbaceous plant of the ginger family and the cardamom genus. It is a traditional medicinal and edible plant in China, mainly distributed in Yunnan, Guizhou, Sichuan, and western Guangxi. The fragrance of grass and fruit has been [&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>Optimization of Extraction Process and Component Analysis of Grass Fruit Essential Oil - 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\/grass-fruit-essential-oil\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Optimization of Extraction Process and Component Analysis of Grass Fruit Essential Oil - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Optimization of Extraction Process and Component Analysis of Grass Fruit Essential Oil Amomum tsao ko is a perennial herbaceous plant of the ginger family and the cardamom genus. It is a traditional medicinal and edible plant in China, mainly distributed in Yunnan, Guizhou, Sichuan, and western Guangxi. 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It is a traditional medicinal and edible plant in China, mainly distributed in Yunnan, Guizhou, Sichuan, and western Guangxi. 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