公开(公告)号：US11104970B2

公开(公告)日：2021-08-31

申请号：US16760042

申请日：2018-10-31

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Shubin Wu ,  Xiao Liu ,  Hao Cheng ,  Jiajin Liang ,  Weiqi Wei ,  He Yang

IPC: C13K13/00

Abstract: The present invention discloses a method of preparing oligosaccharide using biomass sugar as raw material. The method places a biomass sugar in a quartz tubular reactor, places the quartz tubular reactor at a temperature-controlled zone of a tubular thermal conversion reactor under the protection of nitrogen gas, controls a thermal conversion time, rapidly quenches a material to obtain an oligosaccharide precursor after thermal conversion ends, then dissolves by adding pure water and purifies through an inorganic ultrafiltration membrane, and finally obtain an oligosaccharide after drying.