effect of nacl concentration on the activities of crude enzyme extracts.
the effects of sodium chloride concentration from soy sauce koji are shown in table 3 the concentration of sodium chloride affected protease activity very significantly.
when the reaction mixture contained 5% sodium chloride the proteolytic activity was repressed to 60% when the concentration of sodium chloride increased to 18% the protease activity was reduced to 3% under the same conditions the effect of nacl contamination of sodium chloride was 18% there was still 70% of amylase activity left