The antibacterial (against E. coli and S. aureus) and antioxidant
activities (DPPH) of peppermint oil were reported by
Rasooli et al. (2008), whereas the antibacterial activity of different
extracts against the same bacterial strains was reported
by Priya et al. (2007). The differences in antibacterial and antioxidant
activities with the reported one may be attributed to
different procedures followed or a different geographical environment,
cultivar type, seasonality, physiological age of the
plant, and the method of oil isolation.
4. Conclusion