云南大叶种茶树不同品种生化成分季节变化特征分析
DOI:
作者:
作者单位:

1.滇西应用技术大学普洱茶学院;2.云南省农业科学院茶叶研究所

作者简介:

通讯作者:

基金项目:


Seasonal Variation of Biochemical Components Content of Different Cultivars of Camellia sinensis var.assamica in Yunnan
Author:
Affiliation:

1.lifen;2.College of Tea(Pu’er), West Yunnan University of Applied Sciences;3.Tea Research Institute,Yunnan Academy of Agricultural Science;4.(1. College of Tea(Pu’er), West Yunnan University of Applied Sciences

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    探索云南大叶种茶树不同品种生化成分季节变化特征,探讨品种及季节对茶树生化成分的影响,为茶树种植品种的选择及茶叶加工采摘季节的选择提供一定的理论依据。本文以云南大叶种云抗10、云抗14、雪芽100、佛香2号和紫娟共5个品种为供试材料,在春、夏和秋三季,分别取其新梢的一芽二叶,进行蒸青固样,分析不同季节5个品种茶树主要生化成分(含水量、水浸出物、茶多酚、氨基酸、咖啡碱)及儿茶素组分((+)C、EC、EGC、ECG和EGCG)季节变化特征,并进行不同茶树品种之间这些生化成分的比较分析。结果表明:①紫娟品种的儿茶素总量较其它品种高,其组分EGC和EGCG含量显著高于其它品种;②云抗10号的主要生化成分水浸出物、氨基酸含量及儿茶素品质指数显著高于其它品种;③春茶氨基酸含量最高,其含量高于制作名优绿茶的阈值;④夏茶的主要生化成分含水量、咖啡碱和儿茶素组分(+)C、儿茶素总量显著高于其它季节;⑤秋茶茶多酚含量最高,氨基酸和儿茶素总量显著低于其它季节。茶叶中主要生化成分及儿茶素组分在不同品种及不同季节间存在显著性差异,可根据其生化成分的差异性并结合实践进行茶叶适制性研究。

    Abstract:

    The objective of this study is to explore the seasonal variation of biochemical components content of different cultivars of Camellia sinensis var.assamica in Yunnan,and the influence of on cultivars and season on the biochemical components of tea, which is informing for the selection of cultivars and picking season of tea. 5 cultivars of Camellia sinensis var.assamica cv.Yunkang10, Camellia sinensis var.assamica cv.Yunkang 14, Camellia sinensis var.assamica cv.Xueya100, Camellia sinensis var.assamica cv.Foxiang2 and Camellia sinensis var.assamica cv.Zijuan were chosen as the research object. One bud and two leaves of the new shoot were sampled and steamed in spring, summer and autumn, respectively. To examine the seasonal variation of main biochemical components content of tea, and compare the biochemical components content of these 5 cultivars, water content, water extract, tea polyphenols, amino acids, caffeine and catechin components of (+)C、EC、EGC、ECG and EGCG of samples were measured. The results showed that: ①The content of total catechin of Camellia sinensis var.assamica cv.Zijuan was significantly higher than other cultivars, which was contributed by its EGC and EGCG contents. ② The highest content of water extract, amino acid and catechin quality index were in Camellia sinensis var.assamica cv.Yunkang10. ③ The tea sampled spring had the highest content of amino acid, which was even higher than the threshold value of famous green tea;④ The tea sampled in summer had significantly higher content of water、caffeine、(+)C and the total of catechin than in other seasons;⑤ The tea sampled in autumn had the highest content of tea polyphenols, while the lowest contents of the total of catechin and amino acid. Therefore, we concluded that the biochemical components of tea showed significant differences among different cultivars and different seasons, It was indicted that the differences of biochemical components and practices should be combined to study the suitability of tea.

    参考文献
    相似文献
    引证文献
引用本文
分享 0
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:2020-12-01
  • 最后修改日期:2021-03-19
  • 录用日期:2021-04-01
  • 在线发布日期:

版权所有:《食品与生物技术学报》编辑部

地址:江苏省无锡市蠡湖大道1800号  邮政编码:214122

电话:0510-85913526  电子邮件:xbbjb@jiangnan.edu.cn

技术支持:北京勤云科技发展有限公司

微信公众号二维码

手机版网站二维码