Fig. 5

Cytotoxicity of L. sakei extract to RAW 264.7 cells. A The cytotoxicity of L. sakei extract at various concentrations in a macrophage cell line were evaluated by a WST cell viability assay. Cell viability in untreated group (control) was considered to be 100%. B Cell viability was checked by methylene blue staining. Scale bar = 20 μm. Experiments were performed in triplicate. Values are expressed as mean values and standard deviations. All data are presented as mean ± SD