Xylitol - production from xylan (hemicellulose) - fermentation

[Bjorn Ness]

Information needed - please help !

A student group  at our college are doing a projectwork on the isue:
production of xylitol from xylans (wood-hemicellulose).

Can anyone give us information and/or referenses regarding microorganisms 
producing enzymes for degradation of hemicellulose to xylose and 
microorganisms producing enzymes witch reduses xylose to xylitol.

Please answeare by E-mail.

Thank's

Bjorn Arne Nass

Sør-Trøndelag College

bjorn at kjemi.tih.no