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Antioxidant activity, β-glucan and lipid contents of oat varieties

Author

Listed:
  • Lucia Brindzová

    (Institute of Biochemistry, Nutrition and Health Protection, Department of Nutrition and Food Evaluation,)

  • Milan Čertík

    (Institute of Biotechnology and Food Science, Department of Biochemical Technology and)

  • Peter RAPTA
  • Michal Zalibera
  • Anna Mikulajová

    (Institute of Biochemistry, Nutrition and Health Protection, Department of Nutrition and Food Evaluation,)

  • Mária Takácsová

    (Institute of Biochemistry, Nutrition and Health Protection, Department of Nutrition and Food Evaluation,)

Abstract

The antioxidant activity, total phenolic and β-glucans contents, and the fatty acid profile of total lipids in covered (black and yellow) and naked oats were studied. Oats with black hulls showed a significantly higher antioxidant activity in 2,2'-azino-di-[3-ethylbenzthiazoline sulphonate] (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) based tests in comparison to the grains with yellow hulls and those of the naked varieties. Radical scavenging activity of oats determined by electron paramagnetic resonance (EPR)/spin-trapping test did not depend on the colour of the grain hulls, but the naked grains showed a lower ability in scavenging reactive radicals. A positive correlation between the content of β-glucans in covered oat grains and the amount of reactive radicals scavenged was observed. Total phenolic content in the black oats was significantly higher than in the yellow and naked oat varieties. However, no significant differences in the fatty acid profile between the naked and covered oats were found, and the common fatty acids being linoleic, oleic, and palmitic acids.

Suggested Citation

  • Lucia Brindzová & Milan Čertík & Peter RAPTA & Michal Zalibera & Anna Mikulajová & Mária Takácsová, 2008. "Antioxidant activity, β-glucan and lipid contents of oat varieties," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 26(3), pages 163-173.
    • Handle: RePEc:caa:jnlcjf:v:26:y:2008:i:3:id:2564-cjfs
    DOI: 10.17221/2564-CJFS
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