Pengaruh perbandingan Etanol-Air Sebagai Pelarut ekstraksi terhadap perolehan ekstraktif, kadar senyawa fenolat dan aktivitas antioksidan dari daun jambu biji (Psidium guajava Linn)

Rivai , Harrizul and Nurdin , Hazli and Suyani, Hamzar and Bakhtiar, Amri (2008) Pengaruh perbandingan Etanol-Air Sebagai Pelarut ekstraksi terhadap perolehan ekstraktif, kadar senyawa fenolat dan aktivitas antioksidan dari daun jambu biji (Psidium guajava Linn). Jurnal Sains dan Teknologi Farmasi, 13 (2). ISSN 1410 – 0177

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Abstract

An effect of ethanol-water ratio as extraction solvent in gaining an extract, phenolic content and antioxidant activity of Psidium guajava Linn. Leaves have been investigated. The ethanol water ratio tested were 100:0, 80:20, 70:30, 60:40, 50:50, and 40:60 respectively, result revealed that the ethanol water ratio had significant effect on extractive obtainability, phenolic concent and antioxidant activity (P<0,05). Among the ethanol-water ratio tested, the best result was obtained by ethanol water ratio 50:50 as extraction solvent for Psidium guajava Linn, leaves. Keyword: Antioxidant, Psidium guajava Linn, extraction solvent, phenolic compounds.

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