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.
Highlights
Sun radiation that affects the surface of the earth is energy in the form of electromagnetic waves
Flavonoids from lime rind extract are used as a basis for determining the potential of sunscreen, because flavonoids have a conjugated aromatic benzene group which is able to absorb UV-A or UVB rays which can cause adverse effects on the skin
The purposes of this study was to determine the value of Sun Protected Factor (SPF) extract of lime rind, formulate the ethanolic extract of lime into a sunscreen lotion and determine the value of SPF lime skin lotion (Citrus aurantifolia) as a sunscreen
Summary
Sun radiation that affects the surface of the earth is energy in the form of electromagnetic waves. Flavonoids from lime rind extract are used as a basis for determining the potential of sunscreen, because flavonoids have a conjugated aromatic benzene group which is able to absorb UV-A or UVB rays which can cause adverse effects on the skin. Ethanolic extract of lime rind has antioxidant activity that can work by overcoming 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. The mechanism of chemical sunscreen action through photochemical reactions by absorbing UV light so that its penetration into the skin epidermis will be inhibited The effectiveness of sunscreen preparation is based on the determination of SPF (Sun Protected Factor) value that illustrate the ability of sunscreen products to protect the skin from erythema. The purposes of this study was to determine the value of SPF extract of lime rind, formulate the ethanolic extract of lime into a sunscreen lotion and determine the value of SPF lime skin lotion (Citrus aurantifolia) as a sunscreen
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