The potential of enzyme treatments
to improve the antioxidant activity of the extract were assessed
by three in vitro assays based upon different reaction mechanisms.
The antioxidant tests were also carried out on three
subfractions from Umamizyme extract, namely crude polyphenol,
crude polysaccharide and an LMW aqueous fraction to estimate
their relative contribution to the overall antioxidant capacity of
the hydrolysate.