Characterization of protein from Canavalia.

The purpose of this work was the isolation and characterization of grain pr otein from five Venezuelans Genotypes (U-02, Yaracuy. Valle De La Pascua, O riginal y Tovar) of Jack Bean (Canavalia ensiformis). The average protein c ontent from these genotypes was 31.37%, it ranged between 28.44% and 33.05% . The protein isolation was performed by solubility extraction procedures, showed: 84.57% of albumins, globulins and non proteic nitrogen and 15.43% o f alcohol insoluble reduced glutelin (AIG). The content of antinutritional factors (canavanine and hemagglutination title) found in protein fractions were respectively: Albumins 1.96%, +4; globulins 0.17%. + 5 and AIG 0,22%, + 1. It was observed that protein fractions of genotype Tovar had the lowes t canavanine values (0,79%, 0,02% and 0,00% respectively). The globulins ga ve the highest in vitro protein digestibility (65.20%) followed by Albumins (58.90%) and AIG (37.28%).