Microemultion Synthesis Using Surfactants And Sweet Orange Peel Essential Oil (Citrus sinensis) As Body Mist

Abstract

This study aims to determine the effect of the mixture ratio of surfactant (Tween 80: Tween 20: Span 80) and essential oil sweet orange peel (Citrus sinensis) and to determine the right ratio of surfactant and sweet orange essential oil mixture to produce the best microemulsion. Completely randomized Design ws used in this research with phase 1 surfactant mixture ratio Tween 20: Tween 80: Span 80. The treatments used were 97:2,75:0,25; 97:2,50:0,50; 97:2,25:0,75; 97:2.00:1.00; 97:1,75:1,25. Afterwards in phase 2 the ratio of surfactant and sweet orange peel oil was 90:10; 87.5:12.5; 85:15; 82.5:17.5; 80:20. Data were analyzed using analysis of variance. The results showed that the ratio of the surfactant mixture Tween 20: Tween 80: Span 80 had a significant effect on the microemulsion characteristics of sweet orange peel oil. The surfactant mixture ratio 97:2,50:0,50 was the best treatment with smallest turbidity index values (%) before and after centrifugation, namely 0,191±0,005% and 0,287±0,010%. The best ratio of surfactant and essential oil of sweet orange peel 82,5:17,5 with turbidity index index (%) before and after centrifugation of 0,217 ± 0,009% and 0,419 ± 0,005%. It has a particle size of 26,5±14,2 nm, a zeta potential value of 0.0mV and is stable at pH 4,5, 5,5, and 6,5 for 8 weeks of storage.