Chemical qualitative analysis and spf value stability of nutmeg seed oil in microemulsions with tween 80 and PEG 400 as surfactants and cosurfactants

Nutmeg oil contains α-pinene, which can be used as sunscreen. The combination of Tween 80 and PEG 400 maintain the stability nutmeg microemulsion. This research was a follow-up study that aims to determine SPF value qualitative chemical content seed microemulsions (NSM). NSM made with concentration 6.4% tween surfactants cosurfactants variations in ratio F1 (5: 4), F2 (6: F3 (7: 4). analyzed using GC-MS. formula were tested for vitro by storing climatic chamber at 30 °C ± 2 RH 65 % 5 4 weeks. values calculated every week. GC-MS data descriptively statistically one way ANOVA. results showed 35 components, including significant compounds, namely sabinene, β-phellandrene also α-terpinolene. those compounds still detected after being formulated sunscreen activity test before storage 10.31 0.03 (F1); 10.47 0.07 (F2); 10.45 (F3) did not show change weeks (p > 0.05). categorized maximum activity. Â