湄潭茶叶多酚提取工艺研究(英文)

湄潭茶叶多酚提取工艺研究(英文)Research on the Extraction Process of Polyphenols in Meitan TeaAbstract: Tea is one

() 湄潭茶叶多酚提取工艺研究英文 ResearchontheExtractionProcessofPolyphenolsinMeitan Tea Abstract: Teaisoneofthemostcommonlyconsumedbeveragesinthe worldduetoitscharacteristicaromaandtaste,aswellasitshealth benefits.Teacontainsarangeofbioactivecompounds,among whichpolyphenolsarethemostabundantandimportant.This studyaimedtoinvestigatetheoptimalextractionprocessof polyphenolsfromMeitantealeaves. Resultsshowedthatthehighestyieldofpolyphenols(23.54%) wasachievedwiththeextractiontemperatureof80℃,extraction timeof120minutes,andethanol/water(80/20)astheextraction solvent.Theantioxidantactivityofthepolyphenolextractwas determinedusingtheDPPHradicalscavengingassay,andthe resultsshowedahighlevelofantioxidantactivity.Thesefindings suggestthattheextractionprocessofpolyphenolsfromMeitan tealeavescouldbeaneffectivemethodforobtainingbioactive compoundswithantioxidantproperties. Introduction: Tea,apopularandwidelyconsumedbeverageworldwide,is madefromtheleavesoftheCamelliasinensisplant.Itcontains variousbioactivecompounds,includingpolyphenols,whichare knowntopossesshealth-promotingproperties.Polyphenolsintea arelargelyresponsibleforitscharacteristictaste,aromaand medicinalvalues.Theyhavebeenwidelystudiedbecauseoftheir antioxidative,anti-inflammatory,andanticanceractivities.In recentyears,therehasbeengrowinginterestindevelopingan efficientandsustainablemethodofextractingpolyphenolsfrom teas.Therefore,thisstudyaimedtoinvestigatetheoptimal extractionprocessofpolyphenolsfromMeitantealeaves. MaterialsandMethods: Meitantealeaveswerepurchasedfromateaplantationin MeitanCounty,GuizhouProvince,China.Theleaveswere air-dried,groundintopowderusingagrinderandthensieved througha100-meshsieve.Theextractionprocesswascarriedout usingethanol/waterasasolvent,witharatioof60:40,70:30,80:20