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Research article - Peer-reviewed, 2017

Antioxidant capacity and major phenol compounds of horticultural plant materials not usually used

Burri, Stina C. M.; Ekholm, Anders; Hakansson, Asa; Tornberg, Eva; Rumpunen, Kimmo

Abstract

Horticultural plant materials not usually used from onion, carrot, beetroot, sea buckthorn, black and red currants as well as a wastewater powder from olive oil production were analyzed for total phenols content (FC), ferric reducing ability of plasma (FRAP), radical scavenging capacity (ABTS), and for major phenolic compounds by HPLC-MS. Antioxidant capacity and phenol content varied significantly between species and cultivars, with extracts of sea buckthorn leaves being superior. In different species, different phenolic compounds were closely associated with FRAP, ABTS and FC. For instance, hydrolysable tannins were major antioxidants in sea buckthorn whereas quercetin was the major antioxidant in onion peel and skin. This study shows that horticultural plant materials usually left in the field or waste materials from processing may have high antioxidant properties, and that extracts of these materials therefore could be of potential interest for development of antioxidant food additives. (C) 2017 The Authors. Published by Elsevier Ltd.

Keywords

HPLC-MS; Leaves; Onion; Polyphenols; Sea buckthorn

Published in

Journal of Functional Foods
2017, volume: 38, number: Part A, pages: 119-127

Authors' information

Burri, Stina CM
Lund University
Swedish University of Agricultural Sciences, Department of Plant Breeding
Håkansson, Åsa
Lund University
Tornberg, Eva
Lund University
Swedish University of Agricultural Sciences, Department of Plant Breeding

Sustainable Development Goals

SDG3 Good health and wellbeing

UKÄ Subject classification

Agricultural Science
Horticulture
Food Science

Publication Identifiers

DOI: https://doi.org/10.1016/j.jff.2017.09.003

URI (permanent link to this page)

https://res.slu.se/id/publ/90942