Indonesia's geographical location causes Indonesia to have a diverse flora with many benefits. One of them is sente (Alocasia macrorrhiza L.). Sente is known to contain glucomannan. This compound can be used as an excipient in pharmaceutical preparations such as gel formulations and emugators. This study aims to see the implementation of the use of sente starch as an ingredient in lotion preparations combined with citronella oil as an anti-inflammatory. This study used an experimental method with 3 variants of different formulas at sente starch levels with concentrations of 4%, 6%, and 8%. The results of organoleptic testing of fragrant lemongrass massage lotions are cream-colored liquid preparations with a distinctive aroma of citronella oil and have a smooth texture. Whereas based on homogeneity and emulsion type test, lemongrass massage lotion has good homogeneity with oil-in-water emulsion type. Lemongrass massage lotion has a viscosity ranging from 17.0 cP to 144.9 cP, and has a good spreadability with pH 6. Based on the research results, the use of sente starch as a thickener gets good results and meets the requirements in terms of characteristics and pH.
The research of the potential rambutan peel as a sunscreen and antibacterial activity against Staphylococcus aureus have been done. The purpose of this research is to determine the activity of rambutan peel which can inhibit bacterial growth and potential as a sunscreen. This research used an experimental method that began by extracting rambutan peels which were made into gel preparations with 3 variant formulas at a concentration of 0.5%; 1%; and 2%. Gel preparations were evaluated by characteristic test and antibacterial activity was determined by measuring the inhibition diameter using a diffusion method. While the sunscreen activity was determined by measuring the absorbance value using a UV-Vis spectrophotometer. The results showed the preparations fulfilled the gel characteristics test requirements. Based on the data obtained in testing, the optimum antibacterial activity and sunscreen activity with high protection against UV rays are at a concentration of 2% with an SPF value of 35.41.
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