Novel mutant microorganism producing succinic acid simultaneously using sucrose and glycerol, and method for preparing succinic acid using same

Abstract

Disclosed is a mutant microorganism that is able to utilise sucrose and glycerol simultaneously for succinic acid production, the mutant microorganism being obtained by relieving the mechanism of catabolite repression mechanism of glycerol in a succinic acid producing microorganism, wherein the mutant microorganism is selected from the group consisting of Mannheimia sp., Actinobacillus sp., and Anaerobiospirillum sp.; and wherein relieving the catabolite repression mechanism is performed by deleting a gene encoding fructose phosphotransferase or by introducing a gene encoding glycerol kinase.