SUMMARY
Characterization of protejn from Canavalja
The purpose of this work was the isolation and characterization of grain protein from five Venezuelans Genotypcs (U-02. Yaracuy. Valle De La Pascua, Originaly Tovar) of Jack Bean (Canavalia ensifonnis). 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 antinutritional factors (canavanine and hemagglutination title) found in protein fractions were respectively: Albumins 1.96 %. + 4; globulins 0.17%. + 5 and AIG 0,22%, + l. 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%).

Key words: Jack Bean, protein isolation, protein digestibility, antinutritional factors.



Recibido: 11/12/1998
Aceptado: 30/09/1999

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PRIVACIDAD | ACCESIBILIDAD ALAN-VE ISSN 0004-0622 - Depósito Legal: pp 199602DF83 Sociedad Latinoamericana de Nutrición Producción editorial en Venezuela: Capítulo Venezolano - RIF: J-30843129-0 Urbanización Santa María, primera transversal, No. 417-214, Planta Alta Tele-Fax: (+58-212) 283.8618 E-mail info@alanrevista.org Código Postal: 1070 Caracas - Venezuela