Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff)

Abstract
Indtoduction : Free radicals that come from sunlight can cause cell damage and death because they are carcinogenic. SPF is the effectiveness of a sunscreen in protecting the skin from the sun. Kawista stem bark (Limonia acidissima Groff) has potential as a sunscreen. Purpose: to analyze the SPF value of ethanol extract, n-hexane fraction, ethyl acetate fraction and water fraction. Method :  Extraction by maceration method with 96% ethanol and fractionation by liquid-liquid extraction method. Phytochemical screening. SPF analysis by spectrophotometric method with the Mansur equation. One-way ANOVA statistical analysis. Results: The SPF values ​​of ethanol extract, ethyl acetate fraction, water fraction and n-hexane fraction respectively along with sunscreen protection categories were SPF 12.77 (maximum protection), SPF 11.77 (maximum protection), SPF 11.67 ( maximum protection) and SPF 7.146 (extra protection). Conclusion: The highest SPF value was found in ethanol extract as a semi-polar solvent. The lowest SPF value was obtained in the n-hexane fraction as a non-polar solvent.
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Fenny Wiji Astuti, et al. (2024). Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff). Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam, 2(3). https://doi.org/10.59581/konstanta.v2i3.3869

Fenny Wiji Astuti; Tunik Saptawati; Anifatus Sa’adah, "Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff)," Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam, vol. 2, no. 3, 2024.

Fenny Wiji Astuti; Tunik Saptawati; Anifatus Sa’adah. "Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff)." Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam, vol. 2, no. 3, 2024.

Fenny Wiji Astuti; Tunik Saptawati; Anifatus Sa’adah. "Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff)." Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam 2, no. 3 (2024).

Fenny Wiji Astuti, et al. (2024) 'Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff)', Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam, 2(3). doi: 10.59581/konstanta.v2i3.3869.

Fenny Wiji Astuti; Tunik Saptawati; Anifatus Sa’adah. Analisis Nilai SPF Ekstrak Etanol, Fraksi N-Heksana, Fraksi Etil Asetat Dan Fraksi Air Kulit Batang Kawista (Limonia Acidissima Groff). Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam. 2024;2(3).

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