Abstract

SANGRONIS, Elba; TORRES, Alexia  and  SANABRIA, Neida. Phytates and α-Galactosides in germinated seeds of Phaseolus vulgaris and Vigna sinensis. Agronomía Trop. [online]. 2006, vol.56, n.4, pp.523-529. ISSN 0002-192X.

Legumes contain nutrients, but also there are antinutritional factors present that in some cases limit their whole utilization. It is known that the germination of legumes improves the bioavailability of nutrients and decreases antinutritional factors such as protease inhibitors, among others. In this study, the effect of germination on the contents of raffinose, stachyose and verbascose and of inositol phosphates present in germinated seeds of Phaseolus vulgaris L. and of Vigna sinensis v. Tuy and v. Orituco was determined. Grains were germinated in the presence of light and were lyophilised prior to the preparation of flours which were analyzed to determine the content of α-galactosides and inositol phosphates, using HPLC techniques. It was observed that germination degrades α-galactosides and inositol phosphates, which suggests that germination may constitute a method for the elimination of such antinutritional factors.

Keywords : Inositol phosphates; -galactosides; black beans; phaseolus; vigna.