公开(公告)号：US11603546B2

公开(公告)日：2023-03-14

申请号：US16934195

申请日：2020-07-21

申请人： Qilu University of Technology

发明人： Li Guo ,  Hui Li ,  Jiahao Li ,  Yifan Gui ,  Bo Cui

IPC分类号： C12P19/22 ,  A61K9/00 ,  A61K9/20 ,  A61K31/718 ,  A61K36/87 ,  C12P19/04 ,  A61P3/10

摘要： Disclosed herein are methods for preparing modified starches, and uses thereof, and relates to the technical field of starch preparation; modifying a gelatinized starch suspension with β-amylase; after inactivating the β-amylase, further modifying with a branching enzyme, after inactivating the branching enzyme, further modifying with pullulanase, after inactivating the pullulanase, precipitating a resulting enzymatic hydrolysate with an alcohol to obtain precipitates; and drying the precipitates to obtain the modified starch. The methods disclosed a starch is modified remarkably, herein substantially increase the number of linear chains with a degree of polymerization DP6-11 in the starch chains and, thus, significantly increase the content of resistant starch in the modified starch—thereby facilitating the use in foods and medicaments.