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Effect of Micronizing Temperature on the Nutritive Value of Sorghum
Author(s) -
SHIAU S. Y.,
YANG S. P.
Publication year - 1982
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1982.tb12756.x
Subject(s) - sorghum , micronization , starch , raw material , food science , chemistry , agronomy , casein , particle size , biology , organic chemistry
Micronization is a process of heat treatment of grains using infrared radiation followed immediately by processing in an extruding‐type roller mill. A laboratory model Pierce micronizer was used to process sorghum under three different temperatures: 102°, 250°, and 282°C. Sorghum processed at 250° had the highest starch availability value followed by sorghum processed at 282°C, sorghum processed at 102°, and raw sorghum. The extent of protein solubility was in decreasing order: raw, processed at 102°, processed at 250°, and processed at 282°. Increasing the temperature of the process destroyed more lysine. Animal study showed that a diet containing 15% protein from sorghum micronized at 250° and casein had a higher growth response than the diets containing raw sorghum or sorghums micronized at 102° or 282° C.