Microbiological Screening of Indian Medicinal Plants with Special Reference to Enteropathogens

Author(s): ANANTHAN, S.

Abstract: The World Health Organisation (WHO) has recommended that all member states actively promote native medicines in their country. Ten Indian medicinal plants were screened for antibacterial activity specific to enteropathogens. Diffusion and dilution methods were used to measure the antibacterial activity. Allium sativum, Camellia sinensis, and Chamaesyce hirta showed higher activity when compared to the rest. They had a minimum bactericidal concentration (MBC) of <100 µg/ml and gave inhibition zones of more than 2 cm. Among the pathogens studied, Vibrio cholerae and Shigella flexneri were found to be highly susceptible to the plant extracts.

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