β-glucan content and β-glucanase activity of winter and spring malting barley cultivars

Šimić, G. and Lalić, A. and Horvat, D. and Abičić, I. and Beraković, I. (2015) β-glucan content and β-glucanase activity of winter and spring malting barley cultivars. Acta Alimentaria, 44 (4). pp. 542-548. ISSN 0139-3006

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Abstract

β-Glucan content and β-glucanase activity of winter and spring barley cultivars grown under different environments were evaluated. There were significant differences in both β-glucan content and β-glucanase activity between analysed barleys. The results showed that, for all cultivars and locations, approximately 75% of β-glucan present in grains was degraded after malting, and that marked differences existed among winter and spring type of cultivars in malt β-glucan content. The correlation analysis of β-glucan content and malt quality parameters showed that malt β-glucan content was significantly positively correlated with viscosity and extract difference, and negatively with malt β-glucanase activity and friability. Regarding malt β-glucanase activity, significantly higher activity was found in spring cultivars in contrast to winter cultivars.

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