Preparation method of low-beany-flavor soybean dietary fiber powder with high-solubility dietary fibers

The invention discloses a preparation method of a low-beany-flavor soybean dietary fiber powder with high-solubility dietary fibers, and belongs to the technical field of food processing. The preparation method of the low-beany-flavor soybean dietary fiber powder with the high-solubility dietary fibers comprises the following steps: carrying out ultrasonic-microwave synergistic treatment on bean dregs; carrying out enzymolysis, fermenting, sterilizing, concentrating, and carrying out expansion drying; and then carrying out superfine grinding to obtain the soybean dietary fiber powder. According to the preparation method, a content of soluble dietary fibers in the soybean dietary fiber powder can be increased, meanwhile, a beany flavor of a product is reduced, and the obtained soybean dietary fiber powder is good in taste and flavor. 本发明公开了一种高可溶性膳食纤维的低豆腥味大豆膳食纤维粉的制备方法，属于食品加工技术领域。本发明公开的一种高可溶性膳食纤维的低豆腥味大豆膳食纤维粉的制备方法，包括豆渣超声-微波协同处理、酶解、发酵、灭菌、浓缩、闪蒸干燥后，超微粉碎，得大豆膳食纤维粉。本发明的制备方法能够提高大豆膳食纤维粉的可溶性膳食纤维含量，同时降低产品的豆腥味，所得大豆膳食纤维粉口感、风