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Antioxidant activity and HPLC analysis of Gallic acid phenolic compound from Nephelium Lappaceum leaves

Khan, Saima and M. Zain, Asna and Murigesan, T. and Abdullah, Mohd A. (2014) Antioxidant activity and HPLC analysis of Gallic acid phenolic compound from Nephelium Lappaceum leaves. [Citation Index Journal]

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Abstract

Phenolic compound from Nephelium lappaceum leave was investigated using Gallic acid as a precursor. The compound was extracted from the leaves in 50, 70, 90 and 100 % methanol solvent (10:1 w/v ratio) at 60C and 75C. Based on HPLC analyses, the optimum of 71.4 mg/g of GA was extracted from green leaves in 50% methanol at 60C with FRAP value of 0.23 mM/500mg. FRAP result showed that the effect of metal chelating activity was significantly increased with increasing extract conecntration and GA was the dominant phytochemicals in the NL giving significant antioxidant activity.

Item Type:Citation Index Journal
Subjects:R Medicine > R Medicine (General)
T Technology > TP Chemical technology
Academic Subject One:Biotechnology
Academic Subject Two:Natural antioxidant
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:11343
Deposited By: Ms Asna Mohd Zain
Deposited On:13 Oct 2014 02:52
Last Modified:19 Jan 2017 08:21

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