In vitro evaluation of antibacterial potentiality of Linum usitatissimum L. (seed) against four important species of bacteria

Abstract

In vitro evaluation of antibacterial activity of aqueous seed extract of Linum usitatissimum L. were tested against four bacterial species viz., Escherichia coli, Proteus vulgaris, Bacillus subtilis and Staphylococcus aureus at 10 to 100% concentration. Maximum inhibition was observed in S. aureus and recorded 34.0 mm inhibition at 100% concentration, followed by P. vulgaris and recorded 32.0 mm inhibition at 100% concentration. B. subtilis recorded 28.0 mm inhibition at 100% concentration and minimum inhibition was observed in E. coli and recorded 23.0 mm inhibition at 60.0% concentration. Compare to control tetracyclin and chloramphenicol at a recommended concentration of 25mg, E. coli recorded 30.0 mm, P. vulgaris recorded 18.0mm, S. aureus recorded 26.0mm and B. subtilis recorded 23.0 mm inhibition respectively. In chloramphenicol, maximum inhibition was observed in P. vulgaris (31.0 mm) followed by E. coli (30.0 mm) and S. aureus and B. subtilis recorded 28.0 mm inhibition respectively.