For exploring the effect of extrusion treatment on the instant solubility and physicochemical properties of yam flour, the flour was processed using a dual-screw extrusion machine and characterized using the scanning electron microscope, X-ray diffraction, Fourier infrared spectrometer, rapid viscosity analysis, etc. Additionally, the instant solubility and main components were analyzed to reveal the internal relationship of instant solubility to the structure changes and main components. The results showed that extrusion treatment remarkably e...