Abstract
Background : White turmeric (Curcuma zedoaria), a plant used traditionally for medicine, is easily obtained at a relatively cheap price in Indonesia. White tumeric contains alkaloids, phenols, saponins, glycosides, steroids, terpenoids, and other compounds; and these compounds have shown antimicrobials, antifungal, anticancer, antiallergic, antioxidant, and analgesic effects. The aim of this study was to determine the antibacterial effect of white turmeric (Curcuma zedoaria) r hizome extract on the growth of Bacillus cereus and Staphylococcus epidermidis bacteria . Methods : This was an experimental study with a Post-test Only Control Group Design. It was carried out using the disc diffusion method with six treatments, consisting of negative control (aquadest), positive control (ciprofloxacin), and the extract of white turmeric rhizome with various concentrations. Kruskal Wallis test and one way ANOVA were used to analyze the data. The results showed a statistically significant value smaller than α (0.021 20mm. Conclusions : Curcuma zedoaria has an antibacterial effect against Bacillus cereus and Staphylococcus epidermidis. Further study is needed, exploring the effectivity of white turmeric in the animal models.
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