Figure 3. Disk diffusion tests and inhibition zone diameters for the tested compounds and LZD against MSSA, MRSA, Figure 3. Disk diffusion tests and inhibition zone diameters for the tested compounds and LZD against MSSA, MRSA, and VRSA. ( A ) S. aureus ATCC 6538 (MSSA), ( B ) S. aureus ATCC 33591 (MRSA), ( C ) S. aureus CCARM 3795 (MRSA), and VRSA. ( A ) S. aureus ATCC 6538 (MSSA), ( B ) S. aureus ATCC 33591 (MRSA), ( C ) S. aureus CCARM 3795 (MRSA), and and ( D ) VRSA48. The concentration of LZD was 30 µ g/disk. N.D. means that an inhibition zone was not detected. ( D ) VRSA48. The concentration of LZD was 30 µg/disk. N.D. means that an inhibition zone was not detected. The diame- The diameters of the inhibition zones for GSE and LZD are illustrated by the bar graphs as means ± SD ( n = 3). GSE and ters of the inhibition zones for GSE and LZD are illustrated by the bar graphs as means ± SD ( n = 3) . GSE and LZD showed LZD showed antibacterial effects, as shown in Figure 1, but 76% G and pH 76% G did not show any inhibition zones. antibacterial effects, as shown in Figure 1, but 76% G and pH 76% G did not show any inhibition zones. This indicates that This indicates that glycerol and the pH of GSE have little influence on the antibacterial effect of GSE. p values were calculated glycerol and the pH of GSE have little influence on the antibacterial effect of GSE. p values were calculated using one-way using one-way ANOVA with Dunnett’s multiple comparisons test in this figure. **** p < ANOVA with Dunnett’s multiple comparisons test in this figure. **** p < 0.0001.