Rivai , Harrizul and Widiya, Ernita and Rusdi, Rusdi
(2013)
PENGARUH PERBANDINGAN PELARUT ETANOL-AIR TERHADAP KADAR
SENYAWA FENOLAT TOTAL DAN DAYA ANTIOKSIDAN DARI EKSTRAK
DAUN SIRSAK (Annona muricata L.).
Jurnal Sains dan Teknologi Farmasi, 18
(1).
pp. 35-42.
ISSN 1410-0177
Abstract
A Study has been conducted to determine the influence of ethanol-water ratio on the concentration of total phenolic compounds and antioxidant activities of extract of soursop leaves. Ethanol-water ratio used were ethanol 96%, ethanol-water 2:1 and ethanol-water 1:1. Concentration of phenolic compounds were determined by Folin-Ciocalteau method and antioxidant activities were detemined by diphenylpicrylhydrazyl method. Results showed that the ratio of ethanol-water had a significant influence on the total content of phenolic compounds (p < 0.05). Highest content of total phenolic compound was obtained by using ethanol-water 1:1, whereas the highest antioxidant activity was obtained by using ethanol 96%.
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