Effects of Variety, Season, and Region on Theaflavins Content of Fermented Chinese Congou Black Tea
Joint Authors
Ma, Haile
Jiang, Yongwen
Hua, Jinjie
Wang, Bei
Yuan, Haibo
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-25
Country of Publication
Egypt
No. of Pages
9
Abstract EN
The effects of variety, region, and season on the theaflavins content of fermented Congou black tea were determined.
Fresh tea leaves from 5 varieties, 3 tea-growing regions, and 3 harvesting seasons were treated by withering, rolling, fermenting, and drying.
Contents of theaflavins, polyphenol oxidase (PPO), peroxidase (POD), and individual catechins in each treatment process were determined.
The results showed that the varieties of Yinghong 9 and Hongyan 12 produced high concentrations of theaflavin, as much as 0.5% and 0.6%, respectively.
The production capacity of theaflavin in different regions had the trend of Yingde > Changsha > Hangzhou.
Fresh leaves plucked in spring season produced the strongest theaflavins.
In tea leaves, high ratio of PPO to POD activity and high contents of certain individual catechins lead to high yield of theaflavin production during the whole process.
American Psychological Association (APA)
Jiang, Yongwen& Hua, Jinjie& Wang, Bei& Yuan, Haibo& Ma, Haile. 2018. Effects of Variety, Season, and Region on Theaflavins Content of Fermented Chinese Congou Black Tea. Journal of Food Quality،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1185299
Modern Language Association (MLA)
Jiang, Yongwen…[et al.]. Effects of Variety, Season, and Region on Theaflavins Content of Fermented Chinese Congou Black Tea. Journal of Food Quality No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1185299
American Medical Association (AMA)
Jiang, Yongwen& Hua, Jinjie& Wang, Bei& Yuan, Haibo& Ma, Haile. Effects of Variety, Season, and Region on Theaflavins Content of Fermented Chinese Congou Black Tea. Journal of Food Quality. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1185299
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185299