Determination of the content of free and attached moisture in spent grain
https://doi.org/10.47370/2072-0920-2020-15-4-41-52
Abstract
Experimental data on the kinetics of drying of raw brewer’s grains from the Maykop brewery for two temperature regimes of 60°C and 55°C are presented. The dry matter content is 12,7%. The drying agent speed is 4,5 m/s. The purpose is to determine the content of free and attached moisture in brewer’s grains obtained as a waste in the production of beer using classical technology. Analysis of the drying curves and drying rate curves has shown that free moisture is removed when the moisture content changes from the initial 687,4% to 360%; with a further decrease in the moisture content, the attached moisture is removed. A moisture content of 360% is assumed to be at the interface between the first and second drying periods. The average free moisture content is 47%, that of the attached one is 53%. A significant amount of the attached moisture indicates insufficient destruction of the cellular structure of the material.
About the Authors
A. S. Danilchenko
FSBSI HE «Kuban State Technological University»
Russian Federation
Russian Federation
Alexandra S. Danilchenko, a postgraduate student of the Department of Life Safety
2 Moskovskaya str., Krasnodar, 350072
Kh. R. Siyukhov
FSBSI HE «Maykop State Technological University»
Russian Federation
Russian Federation
Khazret R. Siyukhov, Head of the Department of Technology, Machines and Equipment for Food Production, Doctor of Technical Sciences, an associate professor
191 Pervomayskaya str., Maykop, 385000
T. G. Korotkova
FSBSI HE «Kuban State Technological University»
Russian Federation
Russian Federation
Tatiana G. Korotkova, a professor of the Department of Life Safety, Doctor of Technical Sciences, an associate professor
2 Moskovskaya str., Krasnodar, 350072
B. B. Siyukhova
FSBSI HE «Maykop State Technological University»
Russian Federation
Russian Federation
Bella B. Siyukhova, a senior lecturer of the Department of Technology, Machines and Equipment for Food Production
191 Pervomayskaya str., Maykop, 385000
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For citations:
Danilchenko A.S., Siyukhov Kh.R., Korotkova T.G., Siyukhova B.B. Determination of the content of free and attached moisture in spent grain. New Technologies. 2020;(4):41-52. (In Russ.) https://doi.org/10.47370/2072-0920-2020-15-4-41-52
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