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Int. J. Mol. Sci. 2017, 18(1), 61;

Chemical Composition and Antioxidant Activity of Euterpe oleracea Roots and Leaflets

UMR QUALITROP, Université de Guyane, Campus Universitaire de Troubiran, P.O. Box 792, 97337 Cayenne Cedex, French Guiana, France
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Toshio Morikawa
Received: 27 October 2016 / Revised: 9 December 2016 / Accepted: 12 December 2016 / Published: 29 December 2016
(This article belongs to the Special Issue Biological Activity of Natural Secondary Metabolite Products)
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Euterpe oleracea (açaí) is a palm tree well known for the high antioxidant activity of its berries used as dietary supplements. Little is known about the biological activity and the composition of its vegetative organs. The objective of this study was to investigate the antioxidant activity of root and leaflet extracts of Euterpe oleracea (E. oleracea) and characterize their phytochemicals. E. oleracea roots and leaflets extracts were screened in different chemical antioxidant assays (DPPH—2,2-diphenyl-1-picrylhydrazyl, FRAP—ferric feducing antioxidant power, and ORAC—oxygen radical absorbance capacity), in a DNA nicking assay and in a cellular antioxidant activity assay. Their polyphenolic profiles were determined by UV and LC-MS/MS. E. oleracea leaflets had higher antioxidant activity than E. oleracea berries, and leaflets of Oenocarpus bacaba and Oenocarpus bataua, as well as similar antioxidant activity to green tea. E. oleracea leaflet extracts were more complex than root extracts, with fourteen compounds, including caffeoylquinic acids and C-glycosyl derivatives of apigenin and luteolin. In the roots, six caffeoylquinic and caffeoylshikimic acids were identified. Qualitative compositions of E. oleracea, Oenocarpus bacaba and Oenocarpus bataua leaflets were quite similar, whereas the quantitative compositions were quite different. These results provide new prospects for the valorization of roots and leaflets of E. oleracea in the pharmaceutical, food or cosmetic industry, as they are currently by-products of the açaí industry. View Full-Text
Keywords: Euterpe oleracea; açaí; antioxidant activity Euterpe oleracea; açaí; antioxidant activity

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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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Brunschwig, C.; Leba, L.-J.; Saout, M.; Martial, K.; Bereau, D.; Robinson, J.-C. Chemical Composition and Antioxidant Activity of Euterpe oleracea Roots and Leaflets. Int. J. Mol. Sci. 2017, 18, 61.

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