Removal of antinutritional factors from bean (Phaseolus vulgaris L.) seeds

Abstract

Phytohemagglutinin and the lectin-related proteins present in bean seeds are toxic to monogastric animals and lower the nutritional value of beans. Since these antimetabolites are present in substantial amounts, a breeding program aimed to the removal ofphytohemagglutinin was developed. The character ""absence of phytohemagglutinin"" was transferred into a bean cultivar by backcrossing. The lines obtained maintained the agronomic performance of the recurrent parent. Preliminary results show that removal of phytohemagglutinin results in a higher true protein digestibility. Further modification in the composition of the lectin-related protein family is now under way.

Keywords

• kidney-beans
• phaseolus-vulgaris
• antinutritional-factors
• lectins
• nutritive-value
• protein-quality
• antimetabolites
• leguminosae
• nutritive-value
• papilionoideae
• peptides
• phaseolus
• plant-products
• quality
• vegetables