A comparison of Czech and Chinese varieties of barley with regards to technologically important polyphenolic substances
2013
Karabin, M., Institute of Chemical Technology Prague (Czech Republic). Dept. of Biotechnology | Halama, S., Institute of Chemical Technology Prague (Czech Republic). Dept. of Biotechnology | Jelinek, L., Institute of Chemical Technology Prague (Czech Republic). Dept. of Biotechnology | Wang, D., China National Institute of Food and Fermentation Industries, Beijing (China) | Dostalek, P., Institute of Chemical Technology Prague (Czech Republic). Dept. of Biotechnology
The aim of this study was to find differences in the quantity and presence of selected polyphenolic substances in barley grown in the Czech Republic and in the People's Republic of China. The barley samples from China had a higher total amount of the polyphenols studied and a significantly higher amount of some specific groups of polyphenols. The most distinct differences were the significantly higher amount of procyanidin B3 and catechin in the free fractions (almost double) and of p-coumaric and ferulic acids in the bound fractions. Therefore, the specific conditions of cultivation's well as dissimilarity of barley varieties could be the source of the technologically significant differences that could have an impact on the beer quality.
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