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酵母菌株ZZ-46利用木质纤维素水解液产油脂的研究.docx

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酵母菌株ZZ-46利用木质纤维素水解液产油脂的研究 Title:StudyontheOilProductionfromLignocellulosicHydrolysateusingYeaststrainZZ-46 Abstract: Theutilizationoflignocellulosicbiomassforbiofuelproductionhasgainedconsiderableattentionduetoitsabundantavailabilityandpotentialasarenewableenergysource.ThisstudyaimstoinvestigatethepotentialoftheyeaststrainZZ-46inproducingoilfromlignocellulosichydrolysate.ThehydrolysateobtainedfromlignocellulosicbiomasswasutilizedasasubstrateforoilproductionbytheyeaststrainZZ-46.VariousprocessparameterssuchaspH,temperature,andcarbon-to-nitrogenratiowereoptimizedtoenhancetheoilproduction.TheresultsobtainedunderscorethepotentialoftheyeaststrainZZ-46inconvertinglignocellulosicbiomassintovaluableoil,thushighlightingitssignificanceinthedevelopmentofsustainablebiofuels. Introduction: Thedepletionoffossilfuelsandtheincreasingconcernsregardingenvironmentalpollutionhavestimulatedthesearchforalternativeandsustainableenergysources.Theconversionoflignocellulosicbiomassintobiofuelshasemergedasapromisingsolutionduetoitsinherentadvantagessuchasabundantavailability,lowcarbonemission,andrenewablenature. Lignocellulosicbiomass,derivedfromplantcellwalls,primarilyconsistsofcellulose,hemicellulose,andlignin.Celluloseandhemicellulosearecomplexpolysaccharidesthatcanbeenzymaticallyhydrolyzedintosimplesugars.Thesesugarscanthenbemetabolizedbymicroorganismstoproducevariousvaluableproducts,includingoil. Yeastisatypeofmicroorganismthathasbeenextensivelystudiedforitsabilitytoconvertsugarsintooilthroughtheprocessofmicrobiallipidaccumulation(MLA).Theutilizationofyeaststrainsforlipidproductionfromlignocellulosicbiomassholdstremendouspotentialduetoitshighoilyield,lowfeedstockcost,andcompatibilitywithexistingbiorefineryinfrastructure. MaterialsandMethods: 1.SelectionandcharacterizationofyeaststrainZZ-46: TheyeaststrainZZ-46wasisolatedandcharacterizedfromenvironmentalsamples.Itwasidentifiedandscreenedforitsabilitytotoleratelignocellulosichydrolysateandaccumulateoilefficiently. 2.Productionoflignocellul