Figure 4From: Antimicrobial and antibiofilm potential of biosurfactants isolated from lactobacilli against multi-drug-resistant pathogens Toxicity testing of BS in mammalian cells. A549 lung epithelial cells were treated as indicated and viability was measured with LDH assay at 24 hours by following manufacturer’s direction. X-axis indicates the BS, positive (triton) and negative (PBS) controls.Back to article page