Method for the production of xylitol

Heikki Ojamo (Inventor), Merja Penttilä (Inventor), HEIKKI HEIKKILÄ (Inventor), JAANA UUSITALO (Inventor), MARJA ILMEN (Inventor), MARJA-LEENA SARKKI (Inventor), MAIJA-LEENA VEHKOMAKI (Inventor)

    Research output: Patent

    Abstract

    The invention relates to a method for the production of xylitol, the method comprising (a1) providing (i) a microorganism having xylanolytic activity, and (ii) a microorganism capable of converting a pentose sugar to xylitol; or (a2) providing a microorganism having xylanolytic activity and being capable of converting a pentose sugar to xylitol, (b) culturing the microorganism of step (al) (i) or the microorganism of step (a2) in a medium comprising polymer or oligomer materials containing pentose sugars in conditions sufficient for enabling hydrolysis of said polymers or oligomers by the microorganism; (c) producing xylitol in the microorganism of step (a1) (ii) or in the microorganism of step (a2) by bioconversion of the hydrolysis products obtained in step (b), and (d) recovering said xylitol produced.; The invention also relates to a microorganism, which has xylanolytic activity and has been genetically modified (i) to enhance its xylanolytic activity, and (ii) to reduce its xylitol metabolism.

    Original languageEnglish
    Patent numberUS2004014185
    IPCC12P 7/ 18 A I
    Priority date13/01/2003
    Publication statusPublished - 22 Jan 2004
    MoE publication typeH1 Granted patent

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