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KMID : 0903519860290030266
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1986 Volume.29 No. 3 p.266 ~ p.272
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Effect of Cultural Environments on β - Glucan Contents and β - Glucanase Activities on Malting Barley Varieties
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Park Ro-Dong
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Abstract
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The contents of water soluble β-glucan were 1.4∼4.0% in grains of 4 recommended varieties, and 0.3∼0.6% in their malt. The β-glucan content was subject to environmental factors such as cultivating region and nitrogen fertilizer level. The β-glucan content of grains was positively correlated with the viscosity, but negatively with the protein and total gum contents. The β-glucanase activity was 11.0∼20.0 sec as the reduced flow time in malt of 4 recommended varieties and was also subject to environmental factors. β-Glucanase activity showed the highest level after the 6th day during malting. The β-glucanase activity in malt was positively correlated with malt extract, but negatively with the residual β-glucan content. The protein content in malt was negatively correlated with malt extract, but positively with the diastatic power.
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