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Working Principle of Rice Bran Expansion Pretreatment Machine

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Working Principle of Rice Bran Expansion Pretreatment Machine

Rice bran expansion pretreatment machine will change the shape and structure of rice bran through non-isometric and nonstandard screw system of extruder. The gas among rice bran gap is squeezed out and quickly filled with materials, which causes rice bran sheared back and increased pressure inside the chamber. Rice bran hybrid is fully mixed, squeezed, heated, glued and pasted with increasing friction between screw and chamber, which changes rice bran structure and destroys rice bran fat layer structure.

At the same time, mechanical energy converts into heat, and rice bran expansion pretreatment machine chamber quickly rises to 125 degrees, which causes effective passivation of various enzyme activities of rice bran, and destruction of fat layer structure. The starch and protein turn into viscous state while rice bran is extruded to the exit, and high pressure changes into atmospheric pressure instantaneously. Moisture is evaporated from rice bran organizational structure quickly, forming into numerous pore structure inner rice bran. The rice bran expansion pretreatment is completed after cooling.



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