Tannin and fiber contents of rapeseed and canola hulls

Abstract

Hulls from rapeseed and canola seed were analyzed for tannins, and the ability of these tannins to inhibit a-amylase in vitro was determined. Extractable tannin content ranged from 0.02 to O.22Vc. The a-amylase inhibition test showed zero values for rapeseed and canola hulls indicating the absence of tannins capable of inhibiting this enzyme.