Acta Univ. Agric. Silvic. Mendelianae Brun. 2013, 61(3), 777-785 | DOI: 10.11118/actaun201361030777
The content of vitamin E in hop cones of the Saaz variety
- 1 Department of Crop Science, Breeding and Plant Medicine, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
- 2 Research Institute of Brewing and Malting, Mostecká 7, 614 00 Brno, Czech Republic
The activity of vitamin E, total content of tocols and the content of individual isomers: α-tocopherols, β-tocopherols, γ-tocopherols and δ-tocopherols was monitored in samples of hop cones of the world-important Saaz variety. Hop cone samples originated from hop-breeding area Tršice, Czech Republic. The method used for the determination of vitamin E in barley was modified and used for this quantitative analysis. The results indicate that monitored characteristics are influenced by the year of harvest (2010 or 2011) but also by the age of hop-gardens (hop bucks). High values of vitamin E activity (up to 67.79 mg.kg-1) and total content of tocols (up to 76.31 mg.kg-1) in hop cones are worth further attention from the viewpoint of alternative use of hops.
Keywords: hop, vitamin E, antioxidant, tocopherol, Saaz
Grants and funding:
The study was supported by the Ministry of Educations, Youth and Sports of the Czech Republic, Project CR No. 1M0570 and the project No. QJ1210301, National Agency of Agricultural Research, Ministry of Agriculture of the Czech Republic.
Received: February 22, 2013; Published: May 23, 2013 Show citation
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