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GrainGenes Reference Report: JCS-33-155

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Reference	JCS-33-155
Title	Beta-amylase activity and thermostability in two mutants derived from the malting barley cv. triumph
Journal	Journal of Cereal Science
Year	2001
Volume	33
Pages	155-161
Author	Swanston JS Molina-Cano JL
Abstract	Summary: The malting barley cultivar, Triumph, and two mutants derived from it with higher (TL9) and lower (TL43) dormancy, respectively, were grown in replicated trials at Lleida, Spain and Dundee, Scotland, in 1999. Measurement of beta-amylase in the mature grain showed both mutants to have higher enzyme activity than the parental type with Spanish-grown samples higher in beta-amylase than Scottish-grown. There were no genotypic differences in beta-amylase thermostability or in the portion of the enzyme that was water-soluble. However, for all three genotypes, Scottish-grown samples had a higher proportion of water-soluble beta-amylase and total beta-amylase thermostability was also higher in the Scottish-grown samples. Data from the Spanish-grown samples suggested that water-soluble beta-amylase was slightly more thermostable than the portion of the enzyme released by papain
Keyword	barley [ Show all 17 ]

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