Silymarin and its flavonolignan isomers, silybin, isosilybin, dehydrosilybin, silychristin, silydianin, and a few flavonoids mainly taxifolin, have been subjected to a variety of antimicrobial investigations due to extensive traditional uses and low side effects. Antimicrobial activities for silymarin and active seed extracts of Silybum marianum against different bacteria, fungi, viruses and pa...