Cross‐linked tannase‐carbon nanotubes composite in elevating antioxidative potential of green tea extract

Abstract

Tannase (EC 3.1.1.20, Tannin acyl hydrolase) is an extracellular enzyme that hydrolyzes the ester bond of hydrolyzable tannin (e.g., tannic acid) or esters of gallic acid (e.g., epigallocatechin-3-gallate, [EGCG]) into galloyl ester, gallic acid, and glucose as products (Lekshmi et al., 2021). Therefore, EGCG can be biotransformed into epigallocatechin (EGC) and gallic acid (GA) using tannase (Kim et al., 2020). Tannase has found a wide range of industrial applications, including the preparation of black