Fig. 1

The IPEC-J2 was used to choose the cytotoxicity of EPS from the concentration of 25 mg/mL to 400 mg/mL with the CKK8 method. Comparing with different concentrations, a significant difference was observed in the optimal concentration for our research in the A. The ROS was measured with the method for the quantitative detection of extracellular reactive oxygen species with the fluorescent dye of DCFH-DA from the (B–C). The activities of macrophage were analyzed with the F4/80 antibody and DAPI in the D–E. The results are represented as the mean ± SEM of three independent experiments. Data with * denote p < 0.05, ** denote p < 0.01