According to the sense evaluation and proteolytic activity of a Bacillus subtilis protease on 1g of fermented soybean meal （FSM）, the effect of fermentation conditions on the proteolytic activity of Bacillus Subtilis protease on FSM by solid-state fermentation was studied in this paper. The results showed that the highest proteolytic activity of the enzyme on fermented soybean meal were achieved （630 U per gram FSM） under the following optimal conditions： temperature 30 ℃, time 72 h, ratio of material to water 1：1 （m/V）, the in...
