Shin’iseihaito (Xinyiqingfeitang) Suppresses the Biofilm Formation of Streptococcus pneumoniae In Vitro

Figure 2

SSHT inhibits the biofilm formation of S. pneumoniae in dose-dependent manners. S. pneumoniae was treated with SSHT (0, 5, 50, and 500 µg/mL) for 2 days, and its antibiofilm activity was quantified by crystal violet adsorption by measuring absorbance at 570 nm. Data shown represent the mean ± SD (). ; . SSHT: Shin’iseihaito extract.