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Andri Priyoherianto Pengarang Elly Purwati Pengarang Henny Nurhasnawati Pengarang Rusdiati Helmidanora Pengarang Yullia Sukawaty Pengarang

ABSTRAK Benalu inang jeruk bali (Henslowia frutescens) merupakan tumbuhan semi-parasit, meskipun dianggap merugikan namun berpotensi dimanfaatkan sebagai obat dan kosmetik. Tumbuhan ini diketahui memiliki kandungan senyawa metabolit sekunder yaitu senyawa fenolik, flavonoid, saponin, tanin, dan steroid sehingga memiliki aktivitas antioksidan yang tinggi. Tujuan penelitian ini adalah untuk mengetahui aktivitas tabir surya ekstrak etanol benalu inang jeruk bali berdasarkan nilai SPF (Sun Protecting Factor) secara in vitro serta mengetahui aktivitas antioksidan. Tahapan penelitian meliputi determinasi sampel, pengambilan sampel, ekstraksi secara maserasi dengan etanol 95%, perhitungan rendemen, skrining fitokimia, uji aktivitas tabir surya berdasarkan nilai SPF, uji aktivitas antioksidan. Analisis data dilakukan secara deskriptif berdasarkan hasil pengukuran yang diolah sesuai rumus perhitungan. Hasil penelitian menunjukkan aktivitas tabir surya ekstrak etanol benalu inang jeruk bali berdasarkan nilai SPF secara in vitro diperoleh sebesar 14,57 – 25,20 dengan kategori proteksi sedang. Aktivitas antioksidan ekstrak etanol benalu inang jeruk bali menunjukkan kategori sangat kuat dengan nilai IC50 sebesar 22,82 ± 1,33. ABSTRACT Henslowia frutescens is a semi-parasitic plant, although considered harmful, it has medicinal and cosmetic potential. This plant has secondary metabolite compounds, namely phenolic compounds, flavonoids, saponins, tannins, and steroids which have high antioxidant activity. The purpose of this study was to determine the sunscreen activity of the ethanol extract of Henslowia frutescens based on the in vitro SPF (Sun Protecting Factor) value and to determine its antioxidant activity. The research stages included sampling, sampling, maceration extraction with 95% ethanol, yield calculation, phytochemical screening, sunscreen activity test based on SPF value, and antioxidant activity test. Data analysis was carried out descriptively based on the measurement results processed according to the calculation formula. The results showed that the sunscreen activity of the ethanol extract of Henslowia frutescens based on the in vitro SPF value was 14.57 - 25.20 with moderate protection category. The antioxidant activity of the ethanol extract of Henslowia frutescens showed a very strong category with an IC value of 22.82 ± 1.33.