Variability of activity of vitamin E and its isomers in a barley grain
2010
Brezinova Belcredi, N.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic) | Ehrenbergerova, J.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic) | Benesova, K.,Vyzkumny Ustav Pivovarsky a Sladarsky, Brno (Czech Republic). Sladarsky Ustav | Vaculova, K.,Zemedelsky Vyzkumny Ustav, Kromeriz (Czech Republic)
Antioxidant activity of vitamin E and concentrations of its individual isomers, tocopherols and tocotrienols, were determined in 12 varieties/lines of barley grain. Grain samples were collected from the experiments performed in two localities - Zabcice and Kromeriz (Czech Republic) in 2005 and 2007-2008. The effect of the application of pesticides was studied in the locality of Zabcice. A significant effect of the varieties/lines, year and treatment method on the activity of vitamin E was determined. The hull-less line KM 1057 (15.71 mg/kg) had significantly higher vitamin E activity compared to the whole set (10.23-13.74 mg/kg) of the non-treated variants of growing. The varieties Prestige, Merlin, Sebastian, and Amulet (13.42-13.74 mg/kg) also had a high vitamin E activity and they did not differ significantly from the malting variety Malz (13.20 mg/kg) recommended for the production of Czech beer.
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