Preliminary attempts to use a viscosity assay as a simple criterion for selecting malting and feed barley towards quality traits
Katarzyna Kasztelowicz
k.kasztelowicz@ihar.edu.plPracownia Oceny Jakości Produktów Roślinnych, Zakład Biochemii i Fizjologii Roślin, Instytut Hodowli i Aklimatyzacji Roślin, Radzików (Poland)
Danuta Boros
Pracownia Oceny Jakości Produktów Roślinnych, Zakład Biochemii i Fizjologii Roślin, Instytut Hodowli i Aklimatyzacji Roślin, Radzików (Poland)
Abstract
The aim of the study was to determine new extraction conditions to be applied in the assay of grain extract viscosity, which would reflect similarity and complexity of traits determining the malting and feeding values of barley. The methodological studies were initiated by selection of seven testing varieties of variable malting quality, then establishing a most appropriate kind of solvent and its degree of dilution in relation to the grain. The varieties, all originating from the same environmental conditions, were evaluated for malting and feeding values. In a feeding trial broiler chickens, known to be very susceptible to the viscous components of the diet, were used. The results showed that varieties Rudzik, Binal and Blask, which characterised with the highest malting and feeding values, had also the lowest extract viscosity, regardless of a solvent used, and the lowest content of soluble nonstarch polysaccharides. Preliminary results indicate that the assay of extract viscosity can be a handy tool in selection of barley for high brewing and feeding values. Further studies, involving larger testing material, have been planned.
Keywords:
barley, qualitative selection, extract viscosity, malting quality, feeding valueReferences
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Authors
Katarzyna Kasztelowiczk.kasztelowicz@ihar.edu.pl
Pracownia Oceny Jakości Produktów Roślinnych, Zakład Biochemii i Fizjologii Roślin, Instytut Hodowli i Aklimatyzacji Roślin, Radzików Poland
Authors
Danuta BorosPracownia Oceny Jakości Produktów Roślinnych, Zakład Biochemii i Fizjologii Roślin, Instytut Hodowli i Aklimatyzacji Roślin, Radzików Poland
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