Fig. 4From: Antibacterial activity of Bacillus species-derived surfactin on Brachyspira hyodysenteriae and Clostridium perfringensScanning electron microscope images of B. hyodysenteriae illustrating the antibacterial activity of different concentrations (10, 50, 100, 250 μg/ml) of the commercial surfactin after incubating for 1 h. Three experiments were conducted, and one representative result is presentedBack to article page