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1、较大的改善;添加绿茶、红茶,比例分别为1:0.8、1:0.5,得到的速溶藤茶产品品质最好;添加红茶进行调配,整体协调性优于绿茶组。通过对四种速溶藤茶产品营养及理化成分测定得出:四个产品各项理化指标相差不大,冷冻干燥产品总体上稍高于喷雾干燥产品,且红茶组均稍高于绿茶组;对四种产品进行感官审评、色度测定可得:四种产品在外形与内质上均达到合格速溶茶的品质水平,茶粉色泽好,汤色明亮,香气与滋味均较协调,且红茶调配组综合评分高于绿茶组,真空冷冻干燥产品高于喷雾干燥产品。综合外形与内质,红茶组冷冻干燥产品品质最佳
2、,红茶喷雾干燥产品次之,绿茶组冷冻干燥产品第三,绿茶喷雾干燥产品品质相对最差。关键词:藤茶,保健,速溶茶,工艺参数,澄清剂,膜设备,调配IIAbstractAmpelopsisGrossedentataisakindofnaturalclassteaplants,withhigheffectsuchasliverprotectionanddealcohol.Atpresent,itsprocessingandusingremaininafoundationlevel.Inthisstudy,anewt
3、ypeofhealthdrink-instantteaofAmpelopsisGrossedentatawasproduced,usingAmpelopsisGrossedentataasrawmaterial.Basedontheprimaryinspectionandanalysisofthemainnutritionalandphysical,chemicalcomposition,theinstantteaprocessingtechnologywasinspected,thenwiththe
4、combinationofusingbygreentea,blacktea,andtheoptimizedprocessingparameters,fourkindsofinstantteaofAmpelopsisGrossedentataweremade,andthefourproductswereanalysedintheendofthestudy.Themainnutritionalandphysical,chemicalcompositioninAmpelopsisGrossedentataw
5、eredetermined,resultsshowedthattotalflavones,watersolublecarbohydrates,thetotalfreeaminoacids,andwaterextractionreachedat36.91%、4.09%、9.59%、48.04%,respectively.Thecomponentoffreeaminoacids,dihydromyricetin(DMY)andcaffeinewereanalysedbyHPLC,resultsshowed
6、thatthereweremanycompositionkindsoffreeaminoacidsinAmpelopsisGrossedentata,7kindsofwhichwereessentialaminoacids,withthetotalamountof4.19mg/g,also8kindsofwhichwerenon-essentialaminoacid,withthetotalamountof13.15mg/g;thecontentofDMYreachedat157.31mg/g;the
7、contentofcaffeinewasverylow,about0.105mg/g.ThevolatileoilsinAmpelopsisGrossedentataweretestedbyGC-MS,38kindswereinitiallyindicated,themajorcomponentswerePhytol,Geraniol,Myrtenol,Benihinal,Nonanal,α-Pinene,E-Citral,d-longifolene,γ-Terpinen,verbeneneetc.E
8、xtractingtechnology:differenteffectonextractingbywater,microwaveandultrasonicwereanalysedwiththemethodsofsinglefactordesign,orthogonaldesignortheresponsesurfaceexperimentaldesign,resultsshowedthatbestextractingtechnologywasextrac