Antimicrobial activity of Nigella sativa and Zingber officinal

ABSTRACT

Aqueous and ethanolic extracts of Zingber officinale had antimicrobial activity against large number of pathogenic bacteria and fungi. Aqueous extract of Nigella sativa possessed antibacterial activity in higher concentration. In addition, all fractions of both Zingber officinale and Nigella sativa exhibited antimicrobial activities against various microorganisms. Saponin and oil fractions of the test plants increased the antibacterial activity of ampicillin against pyogenic microorganisms, while resin fraction decreased that activity