Relative content of gallic acid over 5-galloylquinic acid as an index for the baking intensity of oolong teas

Phenolic compounds in a series of old oolong teas prepared by baking annually were monitored and compared. The results showed that the relative content of gallic acid over 5-galloylquinic acid was subsequently elevated during this preparatory process. To reveal the effect was mainly resulted from ba...

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Bibliographic Details
Main Authors: Miki Mei-Chi Wang, Yun Yeh, Yu-En Shih, Jason Tze-Cheng Tzen
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Journal of Food and Drug Analysis
Online Access:http://www.sciencedirect.com/science/article/pii/S1021949817301527