Moisture dependent physical properties of maize kernels
2016
Sorna Prema, R. | John, S. G. | Kannan, K. | Sasikala, S. | Sangamithra, A. | Suganya, P. | Nandini, K.
Moisture dependent physical properties of maize kernels were investigated. The geometric, gravimetric and frictional properties were measured at different levels of moisture content from 8.7 to 21.7% d.b. The results obtained showed that the changes in moisture content of maize kernel lead to minimum variation in geometric properties. The principle dimensions such as length, width, thickness, geometric mean diameter and surface area increased linearly while volume, 1000 kernel weight and sphericity of maize kernels increased in a non-linear manner with increase in moisture content. An increase in bulk density and true density was observed whereas the porosity decreased nonlinearly in the fixed range of moisture content (8.7, 13, 17.4 and 21.7% d.b). The highest coefficients of friction were found on the concrete surface followed by wooden slab and aluminum sheet.
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