Figure 4: Inhibitory effects by the two white cloud bean trypsin inhibitors on trypsin. = circa 0.6 M. for soybean trypsin inhibitor = 1.5 M. Results are presented as mean ± SD (). Results are presented as mean ± SD ().  M. Different letters (a, b, c, d) next to the data points indicate statistically significant difference () when the data are analyzed by analysis of variance followed by Duncan’s multiple range test.