<![CDATA[Infection caused by Staphylococcus aureus can occur due to poor hand hygiene. One of preventive solution is the use of soap containing natural antibacterial ingredients, such as soapnut. Soapnut (Sapindus rarak DC) contains active compounds such as saponin, alkaloid, steroid, anthraquinone, tanin, phenol, flavonoid, and essensial oil. This study aims to formulate paper soap using a 70% ethanol extract of soapnut and test its antibacterial activity against Staphylococcus aureus. The method used was a laboratory experiment with three paper soap formulas containing lerak fruit extract at concentrations of 40% (F1), 50% (F2), and 60% (F3). The evaluation of the formulations included organoleptic testing, pH measurement, foam height, hedonic testing, and antibacterial activity testing using the disk diffusion method. The results showed that all formulations met the physical characteristics of paper soap. Hedonic testing indicated that F3 was the most preferred by the panelists in terms of color, aroma, and texture. Antibacterial activity was indicated by inhibition zones in all formulations, with F1, F2, and F3 showing moderate inhibition zones. In conclusion, paper soap made from lerak fruit extract can be formulated effectively and exhibits antibacterial activity against Staphylococcus aureus, with the best formulation 60% concentration.]]>
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