遮阳网覆盖对径山抹茶原料生化成分的影响  

Effect of Shading Net Covering on Biochemical Components of Jingshan Matcha Raw Materials

作　　者：贾芬花 庞英华 朱建杰[3] 汪群 楼玲 李超 童兆民 JIA Fenhua;PANG Yinghua;ZHU Jianjie;WANG Qun;LOU Ling;LI Chao;TONG Zhaomin(Hangzhou Linping District Agricultural Technology Extension Center,Hangzhou Zhejiang 311100;Hangzhou Yuhang District Farmers′Quality Service Station,Hangzhou Zhejiang 311115;Hangzhou Yuhang District Agricultural Technology Extension Center,Hangzhou Zhejiang 311100;Hangzhou Yuhang District Agricultural Ecology and Plant Protection Management Station,Hangzhou Zhejiang 311100;Hangzhou Jinglin Tea Co.,Ltd.,Hangzhou Zhejiang 311100;Hangzhou Yuhang Chekengwu Tea Factory,Hangzhou Zhejiang 311100)

机构地区：[1]杭州市临平区农业技术推广中心,浙江杭州311100 [2]杭州市余杭区农民素质服务总站,浙江杭州311115 [3]杭州市余杭区农业技术推广中心,浙江杭州311100 [4]杭州市余杭区农业生态与植物保护管理总站,浙江杭州311100 [5]杭州径林茶叶有限公司,浙江杭州311100 [6]杭州余杭车坑坞茶厂,浙江杭州311100

出　　处：《现代农业科技》2022年第17期82-85,共4页Modern Agricultural Science and Technology

摘　　要：抹茶是一种以覆盖茶鲜叶加工而成的蒸青茶(碾茶)为原料,并用专用工具(石磨)碾磨出来的茶产品。原料的品质直接影响抹茶的品质。本试验以径山地区的主要品种鸠坑、迎霜为试材,研究覆盖遮阴对鲜叶性状及茶叶中多酚类、氨基酸类、叶绿素等生化成分含量的影响。结果表明,覆盖遮阴处理不仅能明显提高芽叶的鲜嫩度,而且能明显提高茶叶中叶绿素和游离氨基酸的含量,同时还能有效降低茶叶中多酚类物质的含量,使鲜叶原料的酚氨比大幅度降低。Matcha is a kind of tea product,which is made from steamed green tea(ground tea)processed by shading fresh tea leaves and milled with special tools(stone mill).The quality of raw materials directly affects the quality of matcha.In this experiment,the main varieties Jiukeng and Yingshuang in Jingshan area were used as test materials to study the effect of shading on the properties of fresh leaves and the contents of polyphenols,amino acids,chlorophyll and other biochemical components in tea.The results showed that shading treatment could not only significantly improve the freshness and tenderness of buds and leaves,but also significantly increase the contents of chlorophyll and free amino acids in tea.At the same time,it could effectively reduce the content of polyphenols in tea,and significantly reduce the phenol-ammonia ratio of fresh leaf raw materials.

关 键 词：抹茶 覆盖 叶绿素 氨基酸 茶多酚 酚氨比 

分 类 号：S571.1[农业科学—茶叶生产加工]