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Nova Biotechnologica et Chimica

The Journal of University of SS. Cyril and Methodius

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CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2015: 0.129
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1338-6905
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Evaluation of Antioxidant Activities of Cereals and their Malts

Miroslav Ondrejovič
  • Department of Biotechnology, University of SS. Cyril and Methodius, J. Herdu 2, Trnava, SK-917 01, Slovak Republic
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Daniela Chmelová
  • Department of Biotechnology, University of SS. Cyril and Methodius, J. Herdu 2, Trnava, SK-917 01, Slovak Republic
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Eva Ivanišová
  • Department of Storing and Processing of Plant Products, Slovak University of Agriculture, Tr. A. Hlinku 2, Nitra, SK-949 76, Slovak Republic
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  • De Gruyter OnlineGoogle Scholar
/ Štefan Dráb
  • Department of Storing and Processing of Plant Products, Slovak University of Agriculture, Tr. A. Hlinku 2, Nitra, SK-949 76, Slovak Republic
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  • De Gruyter OnlineGoogle Scholar
/ Vratislav Psota
Published Online: 2015-02-06 | DOI: https://doi.org/10.1515/nbec-2015-0007

Abstract

The aim of this study was to determine the influence of malting on the antioxidant content in cereals such as wheat (PS Sunanka, Zaira, PS 57/11 and Vanda), oat (Dunajec) and barley (Laudis 550) harvested in 2013. Antioxidant and polyphenol contents of these cereals and malts were investigated. Secondary, technological parameters of prepared malts were evaluated and compared with malt from barley Laudis 550 used as reference material. Malting of selected cereals had an impact on antioxidant and polyphenol content and allowed a better extraction of these compounds from cereal matrix, except of barley malt, whose antioxidant and total polyphenol content remained comparable. For other cereal malts, antioxidant contents were 2.0, 1.8, 2.6, 2.9 and 3.2-fold higher and total polyphenol content were 1.8, 1.9, 1.9, 3.1 and 3.4-fold higher than in wheat (PS Sunanka, Zaira, PS 57/11, Vanda) and oat (Dunajec), respectively. From correlation analysis, the results showed that not all polyphenols released by malting have antioxidant activity. Technological parameters (friability, haze of wort, saccharification rate, filtration rate, extract and diastatic power) also indicated that good malt quality had oat Dunajec and wheat PS Sunanka and Zaira in comparison with reference material (barley Laudis 550).

Keywords : oat; wheat; barley; antioxidant activity; malt; malting quality

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About the article

Published Online: 2015-02-06

Published in Print: 2014-12-01


Citation Information: Nova Biotechnologica et Chimica, ISSN (Online) 1338-6905, DOI: https://doi.org/10.1515/nbec-2015-0007.

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© by Miroslav Ondrejovič. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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