Antibacterial Activity of the Leaf Extracts of Terminalia Bellerica, Terminalia Chebula, Emblica Officinalis and Their Formulation Triphala

In current era, natural products are measured to be the symbols of safety in comparison to the synthetic products that are regarded to be hazardous to human life and environment. Although herbs had been priced for their therapeutic importance, their phytochemical and pharmacological activities are conducted on different parts. With this, an attempt has been made to investigate the antibacterial activity of leaf extracts of Terminalia bellerica (TB), Terminalia chebula (TC) and Emblica officinalis (EO) and their formulation Triphala. The antimicrobial activity was evaluated using agar well diffusion method against the both gram (+) (Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis, Bacillus cereus) and gram (-) (Pseudomonas aeruginosa, Klebsiella pneumoniae, Salmonella, Escherichia coli and Azotobacter) bacterial isolates using ethanol, methanol, acetone, chloroform and aqueous leaf extracts of TB, TC, EO and Triphala. It was observed that ethanolic extract exhibited good activity against the tested bacterial isolates, compared with methanol, acetone, chloroform and aqueous extract, respectively. From this study, it can be concluded that Triphala and its constituents reveal antibacterial activity against various human pathogenic bacteria.