Isolation and identification of phenolic compounds from the leaf extract of Cassia alata L.

In our study, the methanol leaf extract of C. alata showed a significant antibacterial activity against human pathogenic bacteria strains Staphylococcus aureus and Bacillus cereus. The organic layers such as n-hexane, ethyl acetate, and aqueous layers, were prepared by partitioning the methanol extract with n-hexane and ethyl acetate successively. We successfully isolated and identified the structures of five compounds from C. alata leaves.