| Abstract
| - The effect of various processing methods on antinutrients and invitro protein and starch digestibilityof Phaseolus angularis and Phaseoluscalcaratus seeds was studied. The processes, whichincludedsoaking (12 and 18 h), cooking, autoclaving, and germination (24 and 48h), significantly reduced(p< 0.05) the levels of antinutrients including phytates,tannins, trypsin inhibitors, and amylaseinhibitors and significantly improved (p< 0.05) thedigestibility of protein and starch as well. Sincea significant negative correlation (ranging from −0.80 to −1.00)was found between theseantinutrients and the digestibility of both protein and starch, thereduction in the levels of theseantinutrients might partly account for the improved digestibility.Cooking as well as autoclavingbrought about a more significant (p< 0.05) improvement inthe digestibility of both protein andstarch as compared with soaking and germination. In this study,all processing methods were moreeffective in improving the starch digestibility than the proteindigestibility. Keywords: Phaseolus angularis; Phaseolus calcaratus; processing;antinutrients; protein; starch;digestibility
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