Metabolomic Analyses Reveal Distinct Change of Metabolites and Quality of Green Tea during the Short Duration of a Single Spring Season
文献类型: 外文期刊
第一作者: Liu, Jianwei
作者: Liu, Jianwei;Liu, Jianwei;Zhang, Qunfeng;Liu, Meiya;Ma, Lifeng;Shi, Yuanzhi;Ruan, Jianyun;Liu, Jianwei;Zhang, Qunfeng;Liu, Meiya;Ma, Lifeng;Shi, Yuanzhi;Ruan, Jianyun
作者机构:
关键词: green tea;spring season;quality;plucking period;UPLC-Q-TOF/MS;GCxGC-TOF/MS;metabolomics
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The sensory quality of green tea changes greatly within a single spring season, but the mechanism is not clearly elucidated. Young shoots of the early, middle, and late spring season were subjected to metabolite profiling using gas chromatography time-of-flight mass spectrometry (TOF/MS) and ultraperformance liquid chromatography-quadrupole-TOF/MS. Multivariate analyses revealed largely different metabolite phenotypes in young shoots among different periods. The contents of amino adds decreased, whereas carbohydrates, flavonoids and their glycosides, tricarboxylic acid cycle, and photorespiration pathways were strongly reinforced in the late spring season, which were well reflected in the sensory quality of made teas. Metabolomic analyses further demonstrated distinct variations of metabolite phenotypes in mature leaves. The results suggested that the fluctuation of green tea quality in the spring season was caused by changes of metabolite phenotypes in young shoots, which was likely related to the remobilization of carbon and nitrogen reserves from mature leaves.
分类号: R15`S
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