Journal
RADIATION PHYSICS AND CHEMISTRY
Volume 77, Issue 3, Pages 352-356Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2007.06.003
Keywords
gamma irradiation; cereal porridge; high-energy semi-fluid food; viscosity
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Cereal porridges have low energy and nutrient density because of its viscosity. The objective of the present study was to evaluate the effect of irradiation on the reduction of viscosity and on the increasing solid content of cereal porridge. Four cereals, wheat, rice, maize (the normal starchy type) and waxy rice, were used in this study. The porridge with 3000 cP was individually prepared from cereal flour, gamma-irradiated at 20 kGy and tested. Gamma irradiation of 20 kGy was allowed that the high viscous and rigid cereal porridges turned into semi-liquid consistencies. The solid contents of all porridges could increase by irradiation, compared with non-irradiated ones. No significant differences of starch digestibility were observed in all cereal porridge samples. The results indicated that gamma irradiation might be helpful for improving energy density of cereal porridge with acceptable consistency. (C) 2007 Elsevier Ltd. All rights reserved.
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