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Molecules 2017, 22(2), 239; doi:10.3390/molecules22020239

On-Line Screening, Isolation and Identification of Antioxidant Compounds of Helianthemum ruficomum

1
Unité de Recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques, Université des Frères Mentouri, Constantine 1, Route d’Aïn El Bey, 25000 Constantine, Algeria
2
Chimie Analytique des Molécules Bioactives, Institut Pluridisciplinaire Hubert Curien (UMR 7178 CNRS/UDS), 74 route du Rhin, 67400 Illkirch, France
3
Institut des Sciences Chimiques de Rennes, CNRS UMR 6226, Université de Rennes 1, 263 Avenue du Général Leclerc, CS 74205, 35042 Rennes CEDEX, France
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 15 December 2016 / Revised: 28 January 2017 / Accepted: 2 February 2017 / Published: 8 February 2017
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Abstract

Many Helianthemum species (Cistaceae) are recognized for their various medicinal virtues. Helianthemum ruficomum is an endemic species to the septentrional Sahara on which no report is available so far. The purpose of this work was to investigate the chemical composition and the radical scavenging capacity of this species and its isolated components. Collected from Mougheul (south-west of Algeria), the aerial parts were macerated with 80% EtOH/H2O, after evaporation, the remaining extract was diluted with H2O and extracted with petroleum ether, chloroform, ethyl acetate and n-butanol. EtOAc and n-BuOH extracts were evaluated for their free radical scavenging capacity by on-line HPLC-ABTS•+ assay. The obtained data which were confirmed by TEAC and ORAC assays, allowed guiding the fractionation of these extracts by CC, TLC and reverse phase HPLC. Among the components, 14 were isolated and identified by spectroscopic analyses: protocatechuic acid (1), trans-tiliroside (2), cis-tiliroside (3), astragalin (4), picein (7), vanillic acid 4-O-β-d-glucopyranoside (8), lavandoside (9), 4-hydroxybenzoic acid 4-O-β-d-glucopyranoside (10), nicotiflorin (11), rutin (12), vicenin-2 (13), narcissin (14) and stigmasterol (5) and β-sitosterol (6) as a mixture (71% and 29%, respectively). Compounds 5, 7, 8, 9, 10 and 14 were new for the genus Helianthemum. The antioxidant power of all the isolated compounds was also evaluated by HPLC-ABTS•+, TEAC and ORAC assays. The results clearly indicated high antioxidant potential of the extracts and tested compounds of this species especially, compounds 1, 4, 8, 9, 10 and 12. View Full-Text
Keywords: Helianthemum ruficomum; Cistaceae; antioxidant activity; HPLC-ABTS•+; TEAC; ORAC Helianthemum ruficomum; Cistaceae; antioxidant activity; HPLC-ABTS•+; TEAC; ORAC
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Chemam, Y.; Benayache, S.; Marchioni, E.; Zhao, M.; Mosset, P.; Benayache, F. On-Line Screening, Isolation and Identification of Antioxidant Compounds of Helianthemum ruficomum. Molecules 2017, 22, 239.

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