Abstract
The objective of the article is to investigate the chemical composition of Zanthoxylum armatum roots methanolic extract and to evaluate the polyphenol content and antioxidant potential. Gas Chromatography-Mass Spectroscopy (GC-MS) and High-Performance Liquid Chromatography – Photo Diode Array (HPLC-PDA) techniques were used to characterize chemical composition of methanolic extract of roots. The GC-MS analysis extract resulted in the isolation of thirty-seven phytochemical constituents in methanol extracts. The root extracts were strongly characterized by 1-Propene, 2-nitro-3-(1-cyclooctenyl), (2E,4E)-N-Isobutyldodeca-2,4-dienamide, (+)- Seasmin and Paulowin. The phenolic composition of the root extract quantified by using HPLC revealed Ascorbic acid as most abundant polyphenol, followed by Gallic acid, Chlorogenic acid, Epigallocatechin gallate, Vanillic acid and p-hydroxybenzoic acid, while Caffeic acid was the recorded as least. In addition, root extract also showed the presence of antioxidant activity (DPPH Free radical scavenging, Metal Chelating and Ferric Reducing Antioxidant Activity) and polyphenol content (Total Phenol, Flavonoid, and Tannin Content).
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