Journal
JOURNAL OF FOOD AND DRUG ANALYSIS
Volume 23, Issue 1, Pages 116-123Publisher
FOOD & DRUG ADMINSTRATION
DOI: 10.1016/j.jfda.2014.07.007
Keywords
antiviral activity; ellagic acid; gallic acid; Pu'er tea; strictinin
Categories
Funding
- NSC [100-3114-B-005-001]
- [NCHU-102S0503]
Ask authors/readers for more resources
Compared with abundant catechins, strictinin is a minor constituent in teas and has been demonstrated to possess inhibitory potency on influenza virus. In this study, strictinin was found as the major phenolic compound in Pu'er teas produced from leaves and buds of wild trees. Due to its thermal instability, strictinin, in tea infusion or in an isolated form, was completely decomposed to ellagic acid and gallic acid after being autoclaved for 7 minutes. A plaque reduction assay was employed to compare the relative inhibitory potency between strictinin and its thermally degraded products against human influenza virus A/Puerto Rico/8/34. The results showed that the antiviral activity of ellagic acid regardless of the presence or absence of gallic acid was significantly higher than that of strictinin. Thermal degradation of strictinin to ellagic acid and gallic acid seems to be beneficial for the preparation of Pu'er teas in terms of enhancing antiviral activity. Copyright (C) 2014, Food and Drug Administration, Taiwan. Published by Elsevier Taiwan LLC. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available