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PROUCTION OF SOLID SOAP COMBINING VIRGIN COCONUT OIL AND OLIVE OIL USING KETAPANG LEAF EXTRACT AS AN ANTIOKSIDAN Sukma Maulisa; Reza Fauzan; R Ridwan
Jurnal Sains dan Teknologi Reaksi Vol 23, No 02 (2025): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v23i02.10979

Abstract

Solid soap is a widely used cleaning product and can be formulated with the addition of natural ingredients as antioxidants. This study aims to examine the effect of variations in the volume of Terminalia Catappa leaf extract, virgin coconut oil, and olive oil on the quality of the solid soap produced. The independent variables used were variations in the ketapang leaf extract of 1.63 mL; 1.95 mL; 2.3 mL, virgin coconut oil of 21 mL; 25 mL; 28 mL and variations in the volume of olive oil of 29 mL; 30 mL; 31 mL. The tests carried out included pH, water content, free fatty acids, free alkali, organoleptic tests, and antioxidant activity using the DPPH method. The results of the study obtained the best solid soap with a composition of 2.3 mL ketapang leaf extract, 21 mL virgin coconut oil, and 29 mL olive oil with a pH of 9.6, water content of 4.13%, free fatty acids of 1.025%, free alkali of 0%. Antioxidant activity was analyzed using a UV-VIS spectrophotometer. The analysis showed a total antioxidant content of 1.2253 mg VCE/g. Based on the data obtained, it can be concluded that the solid soap produced meets the Indonesian National Standard (SNI). Keywords: Antioxidant, DPPH, Ketapang Leaf Extract, Virgin Coconut Oil, Olive Oil, Solid Soap.