The values obtained for the inhibition zone diameters has demonstrated that the extracts obtained on fermented red rice presented a low antibacterial activity, but different as function of tested strain type. The two strains of Gram (+) bacteria belonging to Bacillus genus has been more sensitive to the action of the extracts containing Monascus pigments whereas the Pseudomonas Gram (-) strains has been less influenced by the extraction presence. Despite the inhibition zone has been minimal, around the disc impregnated with pigment extract, the culture formed smaller colonia, with a slightly transparent aspect. Also, it has been demonstrated that the n-hexane extract presented an increased antibacterial activity, comparing with the alcoholic extract.