A High Performance Liquid Chromatography with Ultraviolet Method for Eschweilera Nana Leaves and Their Anti-inflammatory and Antioxidant Activities

Overview

Journal Pharmacogn Mag

Publisher Sage Publications

Date 2015 Aug 7

PMID 26246741

Citations 3

Authors

Priscila M Outuki

Nides S Lazzeri

Lizziane M B de Francisco

Ciomar A Bersani-Amado

Izabel C P Ferreira

Mara Lane C Cardoso

Affiliations

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Abstract

Background: Eschweilera nana Miers is a tree widely distributed in Cerrado, Brazil.

Objective: In this study, we aimed to describe its phytochemical properties and antioxidant and topical anti-inflammatory effects for the first time, as well validate an high performance liquid chromatography with ultraviolet/visible (HPLC-UV-Vis) method for the separation and quantification of the main components (hyperoside and rutin) in the hydroalcoholic extract of E. nana leaves.

Materials And Methods: Structural identification of compounds in E. nana extract was performed by analysis of spectral data by (1)H nuclear magnetic resonance, (13)C nuclear magnetic resonance and/or ESI/EM. The HPLC-UV-Vis method was validated according International Conference on Harmonization (ICH) parameters. The 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) method were used for determination of in vitro antioxidant activities and the croton oil-induced inflammation for evaluation of in vivo anti-inflammatory effects.

Results: Hyperoside, rutin, α-amirin, β-amirin, β-sitosterol, and stigmasterol were identified in the hydroalcoholic extract of E. nana leaves. HPLC-UV-Vis was validated according to ICH parameters. Furthermore, in vitro and in vivo assays demonstrated that the hydroalcoholic extract and methanol fraction showed significant antioxidant and topical anti-inflammatory effects, as they were able to reduce ear edema induced by croton-oil application.

Conclusions: This research showed the first phytochemical study of E. nana extract and their biological activities may be associated with the presence of flavonoids in the extracts.

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