Nutritional and antinutritional significance of four unconventional legumes of the genus Canavalia – A comparative study

Developing countries are under the clutch of malnutrition due to a lack of protein rich food. Protein supply can be broadened by exploration and exploitation of alternative legume sources. Even though many wild legume landraces have been identified, their utilization is limited due to insufficient attention. Canavalia gladiata, Canavalia ensiformis, Canavalia maritima and Canavalia cathartica are the common under-exploited legume species having the potential to be a rich protein source. This review envisages a comparative account of nutritional, antinutritional and functional properties and emphasizes the various methods employed in seed processing of Canavalia spp. The current study helps in understanding the nutritional and antinutritional versatility/potential of four Canavalia spp., thereby developing future strategies for optimum utilization.