[1]张晶晶,汤一,杨梦璇.茶渣吸附性能在茶汤保鲜中的应用[J].江苏农业学报,2016,(05):1162-1170.[doi:10.3969/j.issn.1000-4440.2016.05.033]
 ZHANG Jing-jing,TANG Yi,YANG Meng-xuan.Preservation of tea infusion by tea waste adsorption[J].,2016,(05):1162-1170.[doi:10.3969/j.issn.1000-4440.2016.05.033]
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茶渣吸附性能在茶汤保鲜中的应用()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年05期
页码:
1162-1170
栏目:
加工贮藏·质量安全
出版日期:
2016-11-22

文章信息/Info

Title:
Preservation of tea infusion by tea waste adsorption
作者:
张晶晶汤一杨梦璇
浙江大学农业与生物技术学院,浙江杭州310058
Author(s):
ZHANG Jing-jingTANG YiYANG Meng-xuan
College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
关键词:
茶渣吸附茶汤保鲜
Keywords:
tea waste adsorption preservation
分类号:
TS275.2
DOI:
10.3969/j.issn.1000-4440.2016.05.033
文献标志码:
A
摘要:
为探究茶渣吸附处理对茶汤的保鲜作用,检测和分析了吸附后茶汤的儿茶素含量、咖啡因含量、氨基酸含量、色度值和透光率,并与交联聚乙烯吡咯烷酮(PVPP)和木质纤维素吸附处理进行对比。结果表明:贮藏15 d后3种吸附剂处理及对照之间茶汤表没食子儿茶素(EGC)、儿茶素(C)、表儿茶素(EC)、表没食子儿茶素没食子酸酯(EGCG)、儿茶素总量(T-C)含量均存在极显著差异(P<0.01),总儿茶素含量对照(477.99 mg/L)>木质纤维素处理(324.71 mg/L)>茶渣处理(155.08 mg/L)>PVPP处理(47.52 mg/L)。对茶汤色泽的改善效果PVPP处理>茶渣处理>木质纤维素处理,茶渣处理的氨基酸含量高于其他处理,而3种处理之间透光度无显著差异。使用茶渣吸附60 min保鲜效果最好,可以在尽量保留茶汤中儿茶素的前提下,有效改善茶汤的外观品质。
Abstract:
In order to explore the fresh-keeping effect of tea waste adsorption on tea infusion, the catechins and caffeine contents, chromatic value, light transmittance and amino acid content were measured and compared with those by PVPP adsorption and lignocellulose adsorption. PVPP-,lignocellulose-,and tea waster-treated tea infusion and CK differed significantly in epigallocatechin (EGC), catechine(C), epicatechin (EC), epigallocatechingallate (EGCG) and total catechins(T-C) contents after 15 d of storage. Total catechins content follwed the order of CK (477.99 mg/L)> lignocellulose treatment (324.71 mg/L)>tea waste treatment(155.08 mg/L)>PVPP treatment(47.52 mg/L).PVPP showed the best improving effect on the color of tea infusion, followed by tea waste and lignocellulose.The amino acid content in tea infusion by tea waste treatment was higher than those by other treatments, and the transmittances were close in three treatments. Sixty-minute adsorption by tea waste achieved the best preservation effect, keeping the catechins in tea infusion as much as possible to improve the quality of tea appearance.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-01-22 基金项目:国家茶叶产业技术体系项目(CARS-23) 作者简介:张晶晶(1992-),女,安徽芜湖人,硕士研究生,从事茶叶资源利用研究。(E-mail)21316073@zju.edu.cn 通讯作者:汤一,(E-mail)ytang@zju.edu.cn
更新日期/Last Update: 2016-11-22