普洱茶茶多糖的提取工艺的响应面分析研究(英文)

普洱茶茶多糖的提取工艺的响应面分析研究(英文)Response Surface Analysis of Polysaccharide Extraction Process from Pu-erh Te

() 普洱茶茶多糖的提取工艺的响应面分析研究英文 ResponseSurfaceAnalysisofPolysaccharideExtraction ProcessfromPu-erhTea:AResearchPaper Abstract: Pu-erhtea,awell-knownfermentedteafromYunnan provinceinChina,hasgainedincreasingattentionduetoits healthbenefits.Polysaccharides,oneofthemajorbioactive componentsinPu-erhtea,havebeenreportedtoexhibitvarious biologicalactivities.Inthisstudy,responsesurfacemethodology (RSM)wasusedtooptimizetheextractionprocessof polysaccharidesfromPu-erhtea.Theeffectsofthreeindependent variables,namelyextractiontemperature,extractiontime,and ratioofwatertorawmaterial,onthepolysaccharideyieldwere investigated.Aquadraticregressionmodelwasestablishedto predicttheoptimalconditionsforpolysaccharideextraction.The resultsshowedthattheoptimalextractionconditionswereas follows:extractiontemperatureof94°C,extractiontimeof120 min,andratioof27mL/g.Undertheseconditions,thepredicted yieldofpolysaccharideswas5.63%.Theexperimentalvalidationof themodelshowedthattheactualyieldofpolysaccharideswas 5.61%,whichwasingoodagreementwiththepredictedvalue. Thesefindingsprovideavaluablereferencefortheextractionof polysaccharidesfromPu-erhteaandcontributetothe developmentoffunctionalfoodandmedicine. Keywords:Pu-erhtea,polysaccharides,extractionprocess, responsesurfacemethodology,optimization Introduction: Pu-erhtea,atraditionalChinesetea,isproducedfromthe leavesofCamelliasinensisvar.assamicaandundergoesaunique fermentationprocessduringtheirproduction.Pu-erhteahasbeen reportedtoexhibitnumeroushealthbenefits,suchas antihypertensive,antihyperglycemic,andcholesterol-lowering activities(Yangetal.,2017).Polysaccharides,asoneofthemajor bioactivecomponentsinPu-erhtea,havebeendemonstratedto possessvariousbiologicalactivities,suchasimmunoregulatory, antitumor,andantioxidantfunctions(Yangetal.,2017).Therefore, theextractionandidentificationofpolysaccharidesfromPu-erh teaisofgreatsignificanceforthedevelopmentoffunctionalfood