Food extrusion technology and its latest research progress

Food extrusion technology refers to a product whose material is pretreated and mechanically forced to pass through a specially designed orifice to form a certain shape and organization state.
Food extrusion technology and its latest research progress
The machinery used to produce this kind of food is called microwave drying mechanical screw extruder.
The first patent of screw extruder in the world was obtained by Gray in 1879, which was mainly applied in the rubber and plastic industry. By the 1930s, the first single-screw extruder for grain processing came out, and it was used to produce expanded corn. Because screw extruder has the functions of mixing, material conveying, cooking, shearing, sterilization and forming, it has greatly broadened the selection of food processing technology routes. New extruded foods with different texture, color and shape emerge at the historic moment.

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