Fig. 7
The effect of polyols on GBS-S19 hemolytic activity. Hemolytic activity of GBS-S19 was quantified by measuring the hemolysis of erythrocytes in the plasma of whole human blood treated with polyols minus the hemolysis of erythrocytes in the plasma from whole human blood treated with polyols without GBS-S19 addition. Hemolysis was expressed as percent hemolysis. 0.1% Triton X-100 was considered 100% hemolytic activity. 0% represents the hemolysis observed when GBS was grown in the absence of polyols or glucose. Bars represent the average A420 values obtained from two independent experiments compared with the value obtained from (0%) to determine statistical significance; an asterisk (*) indicates statistical significance (p < 0.05) and (**) indicates (p < 0.01)