Chemical composition of grains and their suitability for the production of alcohol
2001
Sliesaravichius, A. | Petrulis, J. (Lithuanian University of Agriculture, Kaunas (Lithuania). Dept. of Crops Science)
In the period of 1998-1999 a research was carried out at the Lithuanian University of Agriculture to investigate productivity, mass of 1000 grains, starch and proteins content in grains and grains' suitability for the production of alcohol of different varieties of winter and summer wheat, winter rye and summer wheatrye, grown in Kaunas and Plunge Plant Research stations. Grains of winter wheat were established to contain the highest amount of starch and to be the most productive ones. Starch content in grains depended on the place of growing and genetic potential of the variety. Winter wheat grown in Plunge Research station conteined significantly higher amount of starch than grains of the same varieties, grown in Kaunas Plant Research station. Grains of some varieties contained up to 73,5 per cent of starch but the varieties grown in Plunge Plant Research station produced the yield which was by 36 per cent lower and the grains were smaller. Increase of grain farm productivity would reduce ethyl alcohol production costs. Summer wheat grain productivity and starch content depended on the place of growing and genetical characteristics of the variety. Starch content in grains varied from 66,0 to 67,6 per cent. The dependency of amylaceousness on winter rye variety was not established. Protein content in grains mostly depended on meteorological conditions during cereal growing and maturing period as well as on the variety and place of growing. Productivity of the investigated winter rye varieties was 7,2-8,6 t/ha, starch content in grains- 62,00-63,50 per cent. Productivity of the investigated summer wheatrye variety was 3,6-5,9 t/ha, and the amound of starch in grains varied from 65,40 to 68,85, depending on the place of growing. The investigations resulted in the selection of gramineous crop varieties best suitable for spirit industry
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