Production of gallic acid in membrane reactor

Tannase (tannin acyl hydrolase) catalyses the hydrolysis of ester bonds in hydrolysable gallotannins releasing glucose and gallic acid. The product in hibits the enzymatic reaction. A membrane reactor with immobilized enzyme w as studied. A spiral membrane module represents the separation part. A math ematical model describing the process was developed. The productivity of pr ocess was determined.