THE MALT EXTRACT, RELATIVE EXTRACT AND DIASTATIC POWER AS A VARIETAL CHARACTERISTIC OF MALTING BARLEY
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February, 2014, vol. 3, special issue 3 (Food Sciences)
Štefan Dráb, Helena Frančáková, Vratislav Psota, Miriam Solgajová, Eva Ivanišová, Žigmund Tóth, Karolína Mocko, Hana Balková
Food Sciences of Food Sciences
Malting quality of barley depends on genetic and agro-ekological factors. Chemical composition of malting barley and its technological parameters are very important for malting and brewing, due to this fact the quality of barley must be strictly evaluated. The aim of this work was to evaluate the influence of variety, locality and year of production on the 5 technological parameters of malt: extract, relative extract at 45 °C, Kolbach index, diastatic power and friability. It was found out that the barley variety significantly influenced the following parameters: extract, relative extract and diastatic power. The growing locality weakly influenced qualitative parameters i.e. Kolbach index and relative extract at 45°C. The study confirmed the most significant impact of the year on the Kolbach index and friability.
malting barley, variety, locality, year, malt parameters
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