[Characteristics of Canavalia proteins].
The purpose of this work was the isolation and characterization of grain protein from five Venezuelan Genotypes (U-02, Yaracuy, Valle De La Pascua, Originally Tovar) of Jack Bean (Canavalia ensiformis). The average protein content 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% of alcohol insoluble reduced glutelin (AIG). The content of anti-nutritional 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 lowest canavanine values (0.79%, 0.02% and 0.00% respectively). The globulins gave the highest in vitro protein digestibility (65.20%) followed by Albumins (58.90%) and AIG (37.28%).
Ramírez
M
M
Facultad de Agronomía, Universidad Central de Venezuela.
Alejandra
O
O
Ortiz de Bertorelli
L
L
D000418:Albumins / Q000032:analysis; D002523:Edible Grain / Q000737:chemistry; D007887:Fabaceae / Q000737:chemistry* / Q000235:genetics; D005838:Genotype; D005916:Globulins / Q000032:analysis; D014674:Plant Proteins, Dietary / Q000032:analysis* / Q000302:isolation & purification; D010946:Plants, Medicinal; D014687:Venezuela
D000418:Albumins; D005916:Globulins; D014674:Plant Proteins, Dietary