Method for enhancing the water-insoluble dietary fiber by extrusion molding process

摘要

The present invention relates to a method for enhancing the water-insoluble dietary fiber's water-solubility by an extrusion molding process. More specifically, the present invention significantly improves the water solubility of water-insoluble dietary fiber by subjecting the water-insoluble dietary fiber contained in the cereals, pulp, or their by-products to extrusion processing at high temperature, high pressure and physical shear force . The process of the present invention can greatly increase the water soluble dietary fiber content of the extrudate while controlling the degree of hydrolysis. Therefore, the method of the present invention can be applied to processing of various food materials in the aspect of food technology and development of functional food materials.