This study concluded that the antimicrobial activity was due to the presence of bakuchiol which, among other effects, inhibited the cell growth of S. mutans in a concentration dependent-manner and completely prevented growth at 20 µg/mL of bakuchiol.63 Similarly, an in vitro screening of crude methanolic seed extract of P. corylifolia showed significant antimycobacterial activity against Mycobacterium aurum and M. smegmatis at a MIC of 62.5 µg/mL.64 Recently, a new source of bakuchiol was found by bioassay-guided isolation from dried leaves of Aerva sangulnolenta Blume and shown to have good antibacterial activity against S. mutans, A. viscosus, S. sanguis, and moderate antifungal activity against Malassezia furfur.