不同脱涩方法对拐枣汁的脱涩效果研究  

Deastringency Effects of Different Deastringency Methods on Hovenia dulcis Juice

作　　者：姜继南 宋昊 任翔 赵粼[1] 王秋爽 李芷汀 徐伊甸 辛雪琦 王梦涵 JIANG Jinan;SONG Hao;REN Xiang;ZHAO Lin;WANG Qiushuang;LI Zhiting;XU Yidian;XIN Xueqi;WANG Menghan(Zhejiang Economic&Trade Polytechnic,Hangzhou Zhejiang 310018)

机构地区：[1]浙江经贸职业技术学院,浙江杭州310018

出　　处：《现代农业科技》2023年第12期197-199,共3页Modern Agricultural Science and Technology

基　　金：浙江经贸职业技术学院2022年校级大学生创新项目(2022017);浙江经贸职业技术学院省属高校基本科研业务费项目(21QNJJ18)。

摘　　要：拐枣营养丰富,具有较高的营养和保健价值。但是,拐枣中的单宁含量较高,导致其原汁涩味很重,严重影响拐枣深加工。探索有效的单宁去除方法,对促进拐枣资源化利用具有重要意义。本文以新鲜拐枣汁为主要原料,建立了单宁标准曲线,研究了β-环糊精、氯化钙和乙醇对拐枣汁的脱涩效果。结果表明,β-环糊精、氯化钙和乙醇对拐枣汁均有一定的脱涩效果,其中以β-环糊精的脱涩效果最好,当β-环糊精添加量为0.5%时,拐枣汁脱涩率最高,达到36.29%。Hovenia dulcis is rich in nutrients and has high nutritional and health value.However,the high content of tannins in Hovenia dulcis results in a strong astringency in its original juice,which seriously affects the deep proces-sing of Hovenia dulcis.Exploring effective tannin removal methods is of great significance for promoting the resource utilization of Hovenia dulcis.This paper took fresh juice of Hovenia dulcis as the main raw material,established a tannin standard curve,and studied the deastringency effects ofβ-cyclodextrin,calcium chloride and ethanol on the juice of Hovenia dulcis.The results showed thatβ-cyclodextrin,calcium chloride and ethanol had certain deastringency effects on the juice of Hovenia dulcis.β-cyclodextrin had the best deastringency effect,and when the addition ofβ-cyclodextrin was 0.50%,the deastringency rate of Hovenia dulcis was the highest(36.29%).

关 键 词：拐枣 单宁 脱涩率 Β-环糊精 

分 类 号：TS255.44[轻工技术与工程—农产品加工及贮藏工程]