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Synthesis and characterization of nanoemulsion of citronella oil (Cymbopogon Nardus L. Rendle) and its Sunscreen Potential Evaluation Rastuti, Undri; Sulaeman, Uyi; Widyaningsih, Senny; Khalidah Zia, Sity; Aditya Mahendra, Ryan
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 1 (2022): Jurnal Rekayasa Kimia & Lingkungan (June, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i1.23077

Abstract

AbstractCitronella (Cymbopogon nardus L. Rendle) essential oil contains active compounds such as antioxidants and has the potential to be developed as a sunscreen. Nanoemulsion is a water and oil dispersion stabilized by a surfactant layer and has a particle size below 100 nm. This study described the formulation, characterization of citronella oil nanoemulsions, and determination of their activity as a sunscreen through the SPF values. The nanoemulsion formulation was made with 3 variations of oil concentration: F1 (1%), F2 (3%), and F3 (5%). The results of the organoleptic test were following the standards which were clear and no phase separation occurred. In addition, the pH value of the 1%, 3%, and 5% prepared nanoemulsions were categorized as safe to be used on the skin. The prepared formulas were categorized as O/W nanoemulsion types. The viscosity values were found to be 12.76, 25.13, and 84.05 cP respectively. Furthermore, the percent transmittance values were 98.4, 98.9, and 99.9%. The particle sizes, respectively, were 9.4 (100%), 10.07 (97%), and 8.96 nm (82.5%). The centrifugation and freeze-thaw cycle tests showed good physical stability. The results of the sunscreen potential test of the 1%, 3%, and 5% citronella oil nanoemulsion showed SPF values of 1.03, 1.13, and 1.14 with %Te values of 77.42, 70.21, and 67.86% respectively, and %Tp values of 95.94, 94.04, and 93.61% respectively.Keywords:Citronella essential oil (Cymbopogon nardus L. Rendle), nanoemulsion, antioxidant, sunscreen, SPF.
Potency Ziziphus and Polyscias Leaves as Foaming agent in Antioxidant Soap Production from Nyamplung Seed of Oil Chasani, Moch.; Widyaningsih, Senny; Rastuti, Undri; Permana, Afri
Indonesian Journal of Chemical Science Vol. 13 No. 2 (2024): Indonesian Journal of Chemical Science
Publisher : Prodi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v13i2.7456

Abstract

Penelitian untuk mencari formulasi sabun antioksidan terbaik dari minyak biji nyamplung sebagai bahan utama telah dilakukan. Namun bahan tambahan yang digunakan adalah bahan sintetis yang bisa menyebabkan iritasi pada kulit. Penelitian ini mengkaji penggunaan bahan tambahan alami yaitu daun kelor (Moringa oleifera L.) sebagai antioksidan, daun bidara (Ziziphus mauritiana L.) dan daun mangkokan (Polyscias scutellaria L.) sebagai bahan pembusa alami. Tujuan penelitian adalah untuk mengetahui formulasi dan aktivitas antioksidan sabun dari minyak biji nyamplung dengan penambahan daun bidara dan daun mangkokan sebagai bahan pembusa. Karakterisasi formula sabun meliputi jumlah asam lemak, asam lemak bebas, lemak netral, keasaman (pH), berat jenis dan kestabilan busa. Analisis data menggunakan rancangan acak lengkap, uji ANOVA (Analysis of Variance) dan uji DMRT (Duncan’s Multiple Range Test) dengan tingkat kepercayaan 95% (α=0,05). Penentuan formulasi sabun terbaik menggunakan metode indeks efektivitas. Uji aktivitas antioksidan pada sabun formula terbaik menggunakan metode DPPH. Hasil penelitian menunjukkan bahwa kedua bahan tambahan alami tersebut memberikan pengaruh yang nyata terhadap karakteristik sabun. Uji aktivitas antioksidan diperoleh nilai IC50 sebesar 44,73 ppm yang berarti sabun mempunyai aktivitas antioksidan sangat kuat.