Classes of secondary metabolites identified in three legume species

Abstract

The objective of this study was to identify secondary metabolite classes of tropical kudzu, perennial soybean and archer legumes through identificationby phytochemical screening and confirmationbyinfrared (IR), 1H and carbon-13 NMR spectroscopy of fractions obtained by organic solvents partition of crude extracts. These analyses allowed for proposing the presence of the following metabolite classes: reducing sugars, saccharides, saponins, cardiac glucosides, terpenes, coumarins, tannins, alkaloids and flavonoids. The tannins, saponins, alkaloids, organic acids and flavonoidshadspecial consideration because they are toxic compounds and can affect the animal metabolism. © 2013 Sociedade Brasileira de Zootecnia.