Textured soybean protein: (1) Extrusion method. Using defatted soybean meal as raw material, it is organized by the shear force formed by the extruder. Can produce soy tissue protein. The protein produced by this method, also known as extruded protein, can be used as a base material for artificial meat or an increase in meat products. (2) Textile method. Using soy protein isolate as raw material, using a manufacturing process similar to rayon, the soy protein filamentous fiber is called spun silk protein. It can be used as a muscle fiber material for high-grade meat-like products. This method has not yet been mass-produced industrially.