The utilization of valuable by-products of seed processing residues as coextrusion materials was investigated. By mixing sunflower, pumpkin, corn or rice germ presscake with cereals (wheat, corn, rice), the good protein quality of the former group might improve the biological value of the resulting coextrudates. The microstructure of such coextruded products was analysed with reference to their chemical compositions, nutritional characteristics and functional properties. As seed processing residue was increased, the microstructure of the products became more compact and uniform and the air/solids ratio decreased considerable. The results showed that the highest acceptable concentration of the additive was not more than 20-40% for the applied high temperature short-time procedure.
Salgo, A.; Torok, Sz.; and Sandor, Sz.
"Microstructure of Extruded Mixtures of Cereals and Oil Seed Processing Residues,"
Food Structure: Vol. 8
, Article 10.
Available at: http://digitalcommons.usu.edu/foodmicrostructure/vol8/iss2/10