Inhibitory properties of Chinese Herbal Formula SanHuang decoction on biofilm formation by antibiotic-resistant Staphylococcal strains.

5 ) showed that the OD value of biofilm had an increasing trend in the control and 1/8MIC SH groups with the increase of incubation time, suggesting the strains adhered to the titanium surface and gradually formed biofilm; from 6 to 24 h, we observed significant differences of the OD values between any two time-points ( P < 0.01), while no statistical difference of OD value was found for S. epidermidis ATCC 35984 (Fig. 5 a) or MRSE 287 (Fig. 5 c) ( P > 0.05) and statistical difference was found for S. aureus ATCC 43300 (Fig. 5 b) ( P < 0.01) between 24 and 48 h.

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