FORMULASI DAN UJI ANTIOKSIDAN LOTION EKSTRAK ETANOL DAUN KENIKIR (Cosmos caudatus Kunth.) DENGAN VARIASI KONSENTRASI SETIL ALKOHOL

Nuvitasari, Nuvitasari (2026) FORMULASI DAN UJI ANTIOKSIDAN LOTION EKSTRAK ETANOL DAUN KENIKIR (Cosmos caudatus Kunth.) DENGAN VARIASI KONSENTRASI SETIL ALKOHOL. Other thesis, Universitas Setia Budi.

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Abstract

Daun kenikir (Cosmos caudatus Kunth.) mengandung senyawa flavonoid dan fenolik yang berpotensi sebagai antioksidan alami. Pemanfaatannya dalam sediaan lotion memerlukan formulasi dengan mutu fisik dan stabilitas yang baik, di mana setil alkohol berperan sebagai ko-surfaktan dan penstabil. Penelitian ini bertujuan untuk mengetahui pengaruh variasi konsentrasi setil alkohol terhadap mutu fisik, stabilitas, dan aktivitas antioksidan lotion ekstrak etanol daun kenikir. Ekstrak daun kenikir diperoleh melalui metode maserasi menggunakan etanol 96% dan selanjutnya diformulasikan menjadi lotion dengan konsentrasi ekstrak daun kenikir sebesar 7%, serta variasi konsentrasi setil alkohol 2%, 3%, dan 4%. Evaluasi meliputi uji mutu fisik dan stabilitas menggunakan metode cycling test. Formula terbaik selanjutnya diuji aktivitas antioksidannya dengan metode DPPH dan dianalisis secara statistik menggunakan one way ANOVA. Hasil penelitian menunjukkan bahwa variasi konsentrasi setil alkohol berpengaruh terhadap mutu fisik dan stabilitas sediaan lotion. Formula dengan konsentrasi setil alkohol 3% merupakan formula terbaik karena memiliki karakteristik fisik dan stabilitas paling optimal serta menunjukkan aktivitas antioksidan kuat dengan nilai IC₅ ₀ sebesar 66,92 ppm. Kenikir leaves (Cosmos caudatus Kunth.) contain flavonoid and phenolic compounds that have potentialas natural antioxidants. Their use in lotion preparations requires formulations with good physical quality and stability, in which cetyl alcohol acts as a co-surfactant and stabilizer. This study aims to determine the effect of varying cetyl alcohol concentrations on the physical quality, stability, and antioxidant activity of kenikir leaf ethanol extract lotion. Kenikir leaf extract was obtained through maceration using 96% ethanol and subsequently formulated into a lotion with a kenikir leaf extract concentration of 7%, and varying cetyl alcohol concentrations of 2%, 3%, and 4%. Evaluation included physical quality and stability tests using the cycling test method. The best formula was then tested for antioxidant activity using the DPPH method and analyzed statistically using one-way ANOVA. The results of the study showed that variations in cetyl alcohol concentration affected the physical quality and stability of the lotion formulation. The formulation with a cetyl alcohol concentration of 3% was the best formulation because it had the most optimal physical characteristics and stability and showed strong antioxidant activity with an IC₅ ₀ value of 66.92 ppm.
Item Type: Thesis (Other)
Uncontrolled Keywords: Antioxidants, Cetyl alcohol, kenikir leaves, lotion Antioksidan, Setil alkohol, Daun kenikir, Lotion
Subjects: R Medicine > R Medicine (General)
R Medicine > RL Dermatology
R Medicine > RS Pharmacy and materia medica
Divisions: Universitas Setia Budi > Fakultas Farmasi > S1 Farmasi
Depositing User: Unnamed user with email baa.si@setiabudi.ac.id
Date Deposited: 17 Sep 2026 03:29
Last Modified: 17 Sep 2026 03:29
URI: https://eprints.setiabudi.ac.id/id/eprint/628

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