AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL KULIT JERUK SIAM BANJAR (Citrus reticulata)

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Abstract

ABSTRAK Radikal bebas merupakan faktor yang menyebabkan terjadinya berbagai penyakit degeneratif. Penyakit degeneratif telah menjadi penyebab kematian terbesar di Indonesia. menghindari dampak negatif dari radikal bebas maka diperlukan antioksidan. Kulit jeruk siam banjar diekstraksi menggunakan metode maserasi, proses ekstrasksi dengan pelarut metanol. Tujuan dari penelitan adalah untuk mengetahui aktivitas antioksidan ekstrak metanol kulit jeruk siam banjar meggunakan metode DPPH. Metode yang digunakan spektrofotometer UV-Visible, dimana hasil dari absorbansi dimasukkan dalam rumus persen aktivitas antioksidan. Setelah didapatkan persen aktivitas antioksidan dilakukan perhitungan IC50 menggunakan regresi linier Hasil penelitian menunjukkan bahwa kulit jeruk siam banjar mengandung Antioksidan yaitu 175 ppm (14,01%), 200 ppm (22,25%), 225 ppm (31,73%), 250 ppm (45,32%), 275 ppm (54,53%) dengan nilai IC50 sebesar 264 ppm. ABSTRACT Free radicals are a factor that causes various degenerative diseases. Degenerative diseases have become the biggest cause of death in Indonesia. avoid the negative effects of free radicals, antioxidants are needed. The siam Banjar orange peel was extracted using the maceration method, extraction process with methanol solvent. The aim of the research was to determine the antioxidant activity of methanol extract of siam Banjar orange peel using the DPPH method. The method used UV-Visible spectrophotometer, where the results of absorbance are included in the formula per cent antioxidant activity. After obtaining a per cent of antioxidant activity, IC50 calculation was performed using linear regression. The results showed that siam Banjar orange peel contained antioxidants which were 175 ppm (14.01%), 200 ppm (22.25%), 225 ppm (31.73%), 250 ppm (45.32%), 275 ppm (54.53%) with an IC50 value of 264 ppm.

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febrianti, dwi rizki, ariani, novia, … Jannah, R. (2019). AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL KULIT JERUK SIAM BANJAR (Citrus reticulata). Jurnal Insan Farmasi Indonesia, 2(1), 1–6. https://doi.org/10.36387/jifi.v2i1.298

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