|Table of Contents|

Differential Analysis of γ-Aminobutyric Acid (GABA) Enrichment in Different Tea Varieties

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年21
Page:
70-75
Research Field:
Publishing date:

Info

Title:
Differential Analysis of γ-Aminobutyric Acid (GABA) Enrichment in Different Tea Varieties
Author(s):
ZHANG Xiaoqin1LIANG Sihui1LUO Jinlong1LI Yan1ZHU Xujun2SHEN Qiang1
(1.Guizhou Tea Research Institute,Guiyang,Guizhou 550006;2.College of Horticulture,Nanjing Agricultural University,Nanjing,Jiangsu 210095)
Keywords:
γ-aminobutyric acidanaerobic enrichment treatmenttotal amount of free amino acidglutamate decarboxylase
PACS:
S 571.1
DOI:
10.11937/bfyy.20241529
Abstract:
Taking fresh tea leaves with one bud and two leaves as the test materials,anaerobic/aerobic intermittent enrichment technology was adopted to enrich fresh tea leaves.The differences of glutamic acid (Glu),glutamic acid decarboxylase (GAD) activity,γ-aminobutyric acid (GABA),total free amino acid (FAA),color and aroma of tea before and after enrichment were analyzed,in order to provide reference for the screening of tea cultivars with high GABA enrichment potential.The results showed that the intermittent anaerobic/aerobic enrichment treatment for 8 hours significantly increased the GABA content and the total FAA in fresh tea leaves.The highest GABA enrichment potential,total FAA before and after enrichment,GAD activity and Glu content in fresh leaves before enrichment were found in ‘Baiye 1’,followed by ‘Fuding dabaicha’.The total amount of FAA,Glu content and GAD activity in fresh tea leaves could be used as reference indexes for screening tea cultivars with high GABA enrichment potential.

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Last Update: 2024-11-21