UJI AKTIVITAS ANTIOKSIDAN EKSTRAK DAN FRAKSI KULIT BUAH PIR YALIE (Pyrus serotina var culta Rehd) DENGAN METODE DPPH (1,1 diphenyl-2-picrylhydrazil)

Asari, Kirana (2022) UJI AKTIVITAS ANTIOKSIDAN EKSTRAK DAN FRAKSI KULIT BUAH PIR YALIE (Pyrus serotina var culta Rehd) DENGAN METODE DPPH (1,1 diphenyl-2-picrylhydrazil). Skripsi thesis, Universitas Setia Budi.

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Abstract

Antioxidants are compounds that chemically can donate or donate electrons and can work to resist free radicals that will attack DNA cells, so that antioxidants can inhibit and overcome various types of diseases caused by free radicals. This study aims to determine the antioxidant activity and determine the IC50 value of the extract and skin fraction of the yalie pear (Pyrus serotina var culta Rehd) through the DPPH method. Yalie pear skin powder (Pyrus serotina var culta Rehd) was macerated with 96% ethanol solvent, obtained extract and then determined the water content by gravimetric method, fractionated with n-hexane, ethyl acetate, and water. The antioxidant activity test was carried out using the DPPH method. After that, data analysis was carried out by determining the IC50 value of the extract and skin fraction of the Yalie pear. The results of this study indicate that the ethanolic extract of the Yalie pear peel has antioxidant activity with an IC50 value of 118.02 ppm, n-hexane fraction of 292.94 ppm, water fraction of 226.36 ppm, and ethyl acetate fraction of 30.26 ppm. The ethyl acetate fraction has the lowest IC50 value in the very strong category. Keywords: yalie pear skin, ethanol extract, fraction, DPPH, antioxidant.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	yalie pear skin, ethanol extract, fraction, DPPH, antioxidant.
Subjects:	R Medicine > RV Botanic, Thomsonian, and eclectic medicine
Divisions:	Fakultas Farmasi > Prodi S1 Farmasi
Depositing User:	Tifany Nur Arfiana
Date Deposited:	30 Nov 2022 04:18
Last Modified:	30 Nov 2022 04:18
URI:	http://repo.setiabudi.ac.id/id/eprint/5528

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