FORMULASI DAN UJI AKTIVITAS ANTIOKSIDAN LOTION EKSTRAK ETANOL 70% DAUN KEJI BELING (Strobilanthes crispa (L.) Blume) DENGAN METODE DPPH

Abstract

Keji beling leaves (Strobilanthes crispa (L.) Blume) contain flavonoids, alkaloids and tannins. The content of flavonoid compounds found in the leaves is known to act as natural antioxidants. This study aims to determine the physical properties of the lotion and at what concentration the ethanol extract lotion 70% of keji beling leaves (Strobilanthes crispa (L.) Blume) has the most optimal activity as an antioxidant. This type of research is experimental research with descriptive analysis. The extract of the keji beling leaf was made by maceration method using 70% ethanol as a solvent. The active ingredient used in the manufacture of the lotion is the extract of the leaves of the vile leaf (Strobilanthes crispa (L.) Blume) with various concentrations of F0 0%, FI 1%, FII 2%, FIII 3% and FIV (positive control). All formulas for lotion were tested by physical evaluation including (organoleptic observation, homogeneity, viscosity, pH, dispersibility, adhesion, emulsion type o / w or w / o and hedonic) as well as testing for antioxidant activity. The results of the physical evaluation of the preparations stated that all lotion preparations met the physical quality requirements, namely brownish green, thick in shape, distinctive odor of vile leaf extract, homogeneous, viscosity 3887-6017 cps, pH 5.16.9, spreadability 5.6 -5.9 cm, adhesiveness of 5.9-6.4 seconds, the type of lotion o / w (oil in water) and the hedonic test showed that the respondents liked the attractive color, fragrant smell, and texture of the lotion. Conclusion The extract of the vicious beling leaf can be made into a lotion with various concentrations. The antioxidant activity of the lotion was determined by calculating