Abstract:
The inhibitory properties of α-amylase inhibitor (α-AI) from white kidney beans were analyzed by the effect of starch concentration, preincubation time, α-amylase activity and starch breed on the inhibition of α-AI.The results showed that the inhibition of α-AI on α-amylase was non-competitive and the variation of starch did not affect the inhibition. With the extension of preincuation time, the inhibition significantly increased (p < 0.05) .While with α-amylase activity exceeded 1.125 U, the inhibition significantly decreased (p < 0.05) .