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The impact of storage on the primary and secondary metabolites, antioxidant activity and digestibility of oat grains (Avena sativa)

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2014
Authors
Rakić, Sveto
Janković, Snežana
Marčetić, Mirjana
Živković, Dušan
Kuzevski, Janja
Article (Published version)
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Abstract
The effect of storage was studied on grain metabolites, functional properties and digestibility of three oat cultivars selected in Serbia - Dunav, Vrbas and NS Tara. During the 12 and 24 months of storage, there was a decrease on average in total proteins (10.98% and 15.95%) lipids (7.55% and 11.82%), crude cellulose (6.65% and 14.77%) and starch concentration (6.48% and 9.48%), and an increase in total ash concentration (4.8% and 9%) and dry matter (4.53% and 5.92%). Storage period caused a decrease in beta-glucan concentration. The concentration of total phenolics (28.79-41.19%) and caffeic acid markedly decreased after 24 months of storage. The storage period significantly influenced the ferric reducing ability (FRAP) (36.34-43.12%) and the DPPH radical scavenging activity (76.92-237.14%). Organic matter digestibility of oat grains was slightly changed, but remained over 70%. Based on the present study, oat grain should not be stored longer than 12 months since phenolics contribute ...markedly to health promoting effect of oats.

Keywords:
Oats / Functional properties / Antioxidant activity
Source:
Journal of Functional Foods, 2014, 7, 373-380
Publisher:
  • Elsevier Science BV, Amsterdam
Projects:
  • Modern breeding of small grains for present and future needs (RS-31066)

DOI: 10.1016/j.jff.2014.01.022

ISSN: 1756-4646

WoS: 000335203500037

Scopus: 2-s2.0-84898049229
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URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/2218
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  • Radovi istraživača / Researchers’ publications
Institution
Pharmacy

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