公开(公告)号：US20240317898A1

公开(公告)日：2024-09-26

申请号：US18678247

申请日：2024-05-30

申请人： Jiangnan University ,  Chengtian (Taizhou) Biotechnology Co., Ltd.

发明人： Aiquan JIAO ,  Qing Liu ,  Zhengyu Jin

IPC分类号： C08B30/12 ,  C12P19/16

CPC分类号： C08B30/12 ,  C12P19/16 ,  C12Y302/01041

摘要： The present disclosure provides a method for preparing type III resistant starch in an “extrusion-debranching” manner and belongs to the technical field of functional food. The method for preparing type III resistant starch in an “extrusion-debranching” manner comprises the following steps: adding a starch raw material into a twin screw extruder for primary extrusion, collecting extruded, gelatinized and degraded starch, and then drying and crushing same; and fully mixing the crushed gelatinized starch with pullulanase, adding the mixture into the twin screw extruder for secondary extrusion, collecting the extruded debranched starch, then recrystallizing same, centrifuging and water washing same, and collecting the precipitate and drying same to obtain type III resistant starch. The method rapidly and efficiently debranches starch under high substrate starch concentration, increases the content of the type III resistant starch, and solves the problem of low yield efficiency of the type III resistant starch.