Evaluation of the polyphenol content, antioxidant activity, and tyrosinase inhibitory activity of ethanol/water extracts of rhizomes of Vietnamese Zingiber officinale, Curcuma longa, Alpinia officinarum, and Boesenbergia pandurata

Abstract

This study was conducted to determine the total polyphenol content and antioxidant activity of ethanol/water extracts from rhizomes of Vietnamese Zingiber officinale, Curcuma longa, Alpinia officinarum Hance, and Boesenbergia pandurata...