Kvasny Prum. 2010; 56(2): 88-92 | DOI: 10.18832/kp2010011

Variability of activity of vitamin E and its isomers in a barley grain.Peer-reviewed article

Natálie BŘEZINOVÁ BELCREDI, Jaroslava EHRENBERGEROVÁ, Karolína BENEŠOVÁ, Kateřina VACULOVÁ
1 Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno
2 Výzkumný ústav pivovarský a sladařský, a. s., Sladařský ústav Brno, Mostecká 7, 614 00 Brno
3 Zemědělský výzkumný ústav Kroměříž, s.r.o., Havlíčkova 2787, 767 01 Kroměříž

Antioxidant activity of vitamin E and content of its individual isomers, tocopherols and tocotrienols, were determined in the set of 12 varieties/lines of barley grain. from which Grain samples for the analyses were collected from the experiments performed in two localities - Žabčice and Kroměříž in 2005 and 2007-2008. The effect of the method used for the grouthreatment (with the application of pesticides and without pesticides) was studied in the locality of Žabčice. The experiments in the locality of Kroměříž were carried out without chemical application, i.e. without the use of the pesticides. A statistically 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-1) had significantly higher vitamin E activity compared to the whole set (10.23-13.74 mg.kg-1) of the non-treated variants of growing. The varieties Prestige, Merlin, Sebastian, and Amulet (13.42-13.74 mg.kg-1) also had a high vitamin E activity and they did not differ significantly from the malting variety Malz (13.20 mg.kg-1) recommended for the production of Czech Beer.Antioxidant activity of vitamin E and content of its individual isomers, tocopherols and tocotrienols, were determined in the set of 12 varieties/lines of barley grain. from which Grain samples for the analyses were collected from the experiments performed in two localities - Žabčice and Kroměříž in 2005 and 2007-2008. The effect of the method used for the grouthreatment (with the application of pesticides and without pesticides) was studied in the locality of Žabčice. The experiments in the locality of Kroměříž were carried out without chemical application, i.e. without the use of the pesticides. A statistically 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-1) had significantly higher vitamin E activity compared to the whole set (10.23-13.74 mg.kg-1) of the non-treated variants of growing. The varieties Prestige, Merlin, Sebastian, and Amulet (13.42-13.74 mg.kg-1) also had a high vitamin E activity and they did not differ significantly from the malting variety Malz (13.20 mg.kg-1) recommended for the production of Czech Beer.

Keywords: varieties, vitamin E, tocopherols, tocotrienols, localities, treatment of stands

Received: October 30, 2009; Accepted: January 7, 2010; Published: February 1, 2010 

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