THE SPF VALUE DETERMINATION OF EXTRACT AND SUNSCREEN LOTIO OF LIME RIND EXTRACT BY SPEKTROFOMETRI UV-VIS METHOD

Abstract

Lime (Citrus urantifolia) contains vitamin C and flavonoids which have antioxidant activity that can be used as a sunscreen. Antioxidants can repaire the effects of damage to human skin caused by free radicals which are the main factors in the aging process and damage to skin tissue. This  purposes of this study were to determine the SPF value of ethanol extract of lime peel and lotion of lime peel extract. Firstly, lime fruit skin was extracted by remaceration method using 70% ethanol and followed by determination or SPF values, lotion formulated and tested for SPF values with UV-VIS Spectrophotometry.The results showed that SPF values of the ethanol extract of lime peel in various concentrations 100ppm, 150ppm, 200ppm, 250ppm and 300ppm were respectively 4.77 ± 0.12; 10.17 ± 0.01; 27.05 ± 0.02; 50.33 ± 0.18; 80.54 ± 0.49. The result showed that SPF  value of lime ethanol extract  sunscreen lotio in 300ppm was 80.54 ± 0.49. Ethanol extract of lime fruit skin has the potential as a sunscreen.