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

SLU Authors

• Ekholm, Anders

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Rumpunen, Kimmo

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

Sustainable Development Goals

Ensure healthy lives and promote well-being for all at all ages


UKÄ Subject classification

Agricultural Science
Horticulture
Food Science


Publication identifier

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

Permanent link to this page (URI)

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