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. 2021 Dec 18;12(1):3062–3073. doi: 10.1080/21505594.2021.2010398

Figure 1.

Figure 1.

Effects of sub-inhibitory concentrations of PF on S. suis growth and biofilm formation. (a) Peony seeds. PF used in this study was extracted from peony seed cake. (b) Two-dimensional structure of PF. (c) Growth curve of S. suis HA9801 in the presence of PF. Growth was monitored by determination of CFU at the time points indicated. (d) Biofilm formation by S. suis HA9801 in the presence of sub-inhibitory concentrations of PF. Biofilm was quantified by crystal violet staining following bacterial growth. Data are shown as the mean ± SD of triplicate experiments. Statistical significance was assessed by unpaired Student’s two-sided t-test compared to the control group. ** p < 0.01, *** p < 0.001