Welcome to Journal of Tea Science,Today is

Journal of Tea Science ›› 2004, Vol. 24 ›› Issue (3): 201-206.doi: 10.13305/j.cnki.jts.2004.03.010

Previous Articles     Next Articles

Effect of Different Tea Infusions on NO- 2 Eliminating in Vitro Experiment

ZHOU Cai-qiong, ZHOU Zhang-zhang, FAN Yong, ZHANG Ying, YANG Chang-min   

  1. Food Science College, Southwest Agricultural University, Chongqing 400716, China
  • Online:2004-09-25 Published:2019-09-16

Abstract: The green tea、Oolong tea and other six teas were used as the test samples, and the NO- 2-eliminating rate of different concentration of tea infusions was tested under the pH conditions in stomach. The results showed that all teas can remove NO- 2 efficiently, And when the concentration is lower than1:50, the scavenging capability rised with the increasing of the tea concentration. Polyphenols is the main active component, but many factors may influence the NO- 2-scavenging rate. Xiaguan tuocha, Oolong tea and Green tea showed the best effect in removeing NO- 2 among all samples, and the concentration of tea ranged from 1:50 to 1:100 is regarded as the good ratio for drinking.

Key words: Tea, Active component, Nitrate, in vitro, Experiment

CLC Number: