On in vitro antimicrobial assays, Helicobacter pylori and Propionibacterium
acnes were highly susceptible to white rose petal extract (WRPE)-EtOH and WRPE-BuOH,
leading to minimal inhibitory concentrations of 100 and 10 mg/mL for H. pylori and 400 and 40 mg/mL
for P. acnes, respectively