Patent ID: 7482144
Filing Date: 2009-01-27
Classification: C12P

Abstract:
1. A method for the production of xylitol, the method comprising (a) providing a genetically modified microorganism, wherein said microorganism is selected from (b) culturing the microorganism of step (a) in a medium comprising polymer or oligomer materials containing pentose sugars in conditions sufficient for enabling hydrolysis of said polymers or oligomers to xylose and L-arabinose by the microorganism and wherein a compound selected from L-arabinose or L-arabinitol is added to the medium; (c) producing xylitol in the microorganism of step (a) by bioconversion of the xylose and L-arabinose obtained in step (b), in an amount at least 10-fold higher than obtained by an unmodified parent strain under the same conditions, and (d) recovering said xylitol produced.