Nigella sativa. Known by the common name "black cumin" is a medicinal plant from the Ranunculaceae family. Widely used in traditional medicine and as a food condiment in the Arab world. Basing on the seeds of this plant.
The Nigella Sativa extract prevented bacterial growth; yet their efficiency remains different. The effect of Nigella sativa extract, on Streptococcus faecalis, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa by the method of aromatogramme, shows that these bacteria are inhibited.
The extract of Nigella generated a zone of inhibition of 30, 25, 20, and 10mm respectively, Streptococcus faecalis, Pseudomonas aeruginosa, Staphylococcus aureus and Escherichia coli.
Evaluation of antioxidant power, which was conducted using the method of trapping the free radical DPPH (1,1-diphenyl-2-picrylhydrazyl), said the methanol extract showed an antioxidant activity (IC50 = 12 256 mg / ml), higher than that recorded in the ascorbic acid (IC50 = 0.097 mg / ml).