Inhibition of a-amylase Activity by Natural Dietary Substances from Ya'an Tibet tea

摘要

The method of high-throughput screening was used in the paper to investigate the fractions inhibiting the activity of a-amylase. The fractions were effectively extracted and separated. The Ya'an Tibet tea extraction showed a significant inhibiting effect on the activity of a-amylase, and-more tea extraction inhibits stronger. The fractions extracted were used to investigate the inhibiting activity on a-amylase. The results showed that the TFs, TRsⅡ and catechin fractions can significantly inhibit the activity of a-amylase, while the effect of the other fractions was complicated.