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茶叶科学 ›› 2006, Vol. 26 ›› Issue (4): 237-242.doi: 10.13305/j.cnki.jts.2006.04.001

• •    下一篇

叶面喷施氨基酸对茶叶中γ-氨基丁酸含量的影响

张定1, 汤茶琴1, 2, 陈暄1, 徐德良2, 肖润林3, *, 黎星辉1, *   

  1. 1. 南京农业大学茶叶研究所,江苏 南京 210095;
    2. 无锡市茶叶品种研究所,江苏 无锡 214063;
    3. 中国科学院亚热带农业生态研究所,湖南 长沙 410125
  • 收稿日期:2006-04-03 修回日期:2006-08-24 出版日期:2006-12-25 发布日期:2019-09-11
  • 通讯作者: * 肖润林,黎星辉, E-mail:lxhhqw@126.com
  • 作者简介:张定(1952- ),女,研究员,研究方向:茶叶加工与审评。
  • 基金资助:
    中国科学院农业重点课题(NK十五-D-15)、江苏省科技攻关招标项目(BG2003301)、江苏省自然科学基金(BK2004101)

Influence of Amino Acid Foliar Application on the Amount of γ-Aminobutyric Acid in Tea Leaf

ZHANG Ding1, TANG Cha-Qin1, CHEN Xuan1, XU De-liang2, XIAO Run-lin3, *, LI Xing-hui1, *   

  1. 1. Tea Research Institute, Nanjing Agriculture University, Nanjing 210095, China;
    2. Tea Variety Research Institute, Wuxi 214063, China;
    3. Subtropic Agricultural Ecology Research Institute, Chinese Academy of Science, Changsha 410125, China
  • Received:2006-04-03 Revised:2006-08-24 Online:2006-12-25 Published:2019-09-11

摘要: 用不同种类、不同浓度氨基酸喷施茶树,采摘鲜叶并进行真空厌氧处理。比较分析不同处理对茶叶中γ-氨基丁酸(GABA)生物合成量、厌氧处理对茶样中各氨基酸含量以及施肥时间对GABA合成的影响。结果表明,茶树喷施氨基酸后,经真空厌氧处理茶鲜叶中γ-氨基丁酸含量明显上升,6种氨基酸对GABA合成的影响作用由高到低为谷氨酸、天冬氨酸、谷氨酰胺、苯丙氨酸、甘氨酸、丙氨酸。茶鲜叶中氨基酸含量尤其是谷氨酸、天冬氨酸及茶氨酸含量高低可以作为评价GABA合成作用的指标;叶面喷施谷氨酸5βd时,茶鲜叶中氨基酸总量以及谷氨酸、天冬氨酸和茶氨酸增加总量最高。综合分析确定施0.5%谷氨酸叶面肥5βd后,采摘一芽二、三叶鲜叶,常温下厌氧处理8βh,是生产γ-氨基丁酸茶的理想方法。

关键词: 茶, γ-氨基丁酸;, 氨基酸叶面肥, 谷氨酸

Abstract: Vacuum and anaerobic treated fresh tea leaves which sprayed by different kind or concentration of amino acid were investigation. The influence on theγ-aminobutyric acid (GABA) biosynthesis by different treatments were analyzed. The result showed that the content ofγ-aminobutyric acid was enhanced obviously after foliage-sprayed and vacuum treatment. The influence of six types of amino acid on the ability ofγ-aminobutyric acid biosynthesis was Glutamic Acid>Asparticacid>Glutamine>Phenylalanine>Glycine>Alanine. The content of Glutamic acid, Aspartic acid and Thenine in tea fresh leaves may be the criterion of synthesizing ability forγ-aminobutyric acid. The total content of Glutamic acid, Aspartic acid and theanine has reached the peak on the fifth day in tea fresh leaves. 0.5% Glutamic acid sprayed on tea leaves for 5 days is the best method.

Key words: tea, γ-Aminobutyric acid;, amino acid foliage spray, glutamic acid

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