Application of bacteroides Zhang in degradation preparation of glucooligosaccharide

The invention belongs to the field of degradation and preparation of active oligosaccharides, and mainly relates to application of bacteroides presenkinensis in degradation and preparation of glucan oligosaccharides. The bacteroides zhangwenhongii is specifically a bacteroides zhangwenhongii strain D2-16, the strain is separated from a healthy human excrement sample and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 20232720. The invention further discloses a method for preparing the bacteroides zhangwenhongii strain. The strain can ferment and degrade glucan into saturated glucan oligosaccharides with the polymerization degrees of 2, 3 and 4. 本发明属于活性寡糖的降解制备领域，主要涉及一种张文宏拟杆菌在降解制备葡寡糖中的应用。所述张文宏拟杆菌具体为张文宏拟杆菌菌株D2-16（Bacteroides zhangwenhongii D2-16），该菌株分离自健康人体粪便样本，保藏于中国典型培养物保藏中心，保藏编号为CCTCC NO:M 20232720。该菌株能够将葡聚糖发酵降解为饱和的聚合度为2、3和4的葡寡糖。