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Influence of pH and time on the bactericidal effect of LipoLLA. The concentration bactericidal curve of LipoLLA to SS1 (A) and a multidrug resistant strain MDR2 (B) at different pH. Time sterilization curves of SS1 with different concentrations of LipoLLA (C). *P < 0.05; **P < 0.01, the number of viable bacterial colonies at pH=5 or pH=6 was significantly different from that at pH=7.
