... rats.Antioxidant Due to its high content of vitamin C and polyphenols, amla extract is a potent antioxidant. ... W, Srichairatanakool S, Lerttrakarnnon P, Lailerd N, Suttajit M, Jaikang C, Chaiyasut C. Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang ... total tannin assays. The presence of predominantly polyphenolic analytes, e.g. ellagic and gallic acids and corilagin, was confirmed ...