2023年第36卷第8期茶多酚壳聚糖微胶囊的制备工艺研究柏双艳'，杨雨帆"，邹浩"，王一博"，袁传勋”，金日生²（1.合肥工业大学食品与生物工程学院，安徽宣城242000；2.合肥工业大学农产品生物化工教育部工程研究中心，安徽合肥230601)摘要：以茶多酚为芯材、壳聚糖为壁材，通过乳化交联法制备茶多酚壳聚糖微胶囊（GTP/CS-MC）。以包封率为指标,在单因素试验的基础上通过正交试验优化制备工艺，并研究微胶囊的粒径分布。结果表明：GTP/CS-MC的最佳制备工艺为反应时间2.0h、反应温度50℃、茶多酚质量浓度4.8mg/mL，在此条件下茶多酚的包封率达到80.91%±2.96%，GTP/CS-MC平均粒径为（8.721±0.16）μm，多分散系数为0.218±0.008,分散性良好。关键词：茶多酚；壳聚糖；微胶囊；乳化交联法teapolyphenolchitosanmicrocapsulesBAIShuang-yan',YANGYu-fan',ZOUHao',WANGYi-bo',YUANChuan-xun’,JINRi-sheng"(1.SchoolofFoodandBioengineering,HefeiUniversityofTechnology,Xuancheng242000,Anhui,China;2.EngineeringResearchCenterofMinistryofEducationforAgriculturalProductsBiochemistry,HefeiUniversityofTechnology,Hefei230601,Anhui,China)Abstract:Teapolyphenolchitosanmicrocapsules(GTP/CS-MC)werepreparedbyemulsion-crosslink-ingmethodusingteapolyphenolsasthecorematerialandchitosanasthewallmaterial.Usingencapsula-tionefficiencyasanindicator,thepreparationprocesswasoptimizedbyorthogonalexperimentsbasedonsinglefactorexperiments,andtheparticlesizedistributionofthemicrocapsuleswasstudied.TheresultsshowedthattheoptimalpreparationprocessforGTP/CS-MCwasreactiontime2.0h,reactiontempera-ture50℃C,andteapolyphenolmassconcentration4.8mg/mL.Undertheseconditions,theencapsula-tionefficiencyofteapolyphenolsreached80.91%±2.96%,andtheaverageparticlesizeofGTP/CS-MCwas(8.721±0.16)μm.Thepolydispersitycoefficientwas0.218±0.008,indicatinggooddispers-ibility.Keywords:teapolyphenol;chitosan;microcapsule;emulsion-crosslinkingmethod中图分类号：TS201.1茶多酚是1类存在于茶叶中的多羟基酚类化合物，包括儿茶素、黄酮类、花色苷类等，具有很强的抗氧化活性["]，同时具有降血脂、抗肿瘤、抗菌、提高机体免疫力、预防心血管疾病、延缓衰老等功能[2-3]。但茶多酚易被氧化、在碱性条件下不稳定、粮...
