Main Reaction: NAD+ + xylitol >> D-xylulose + NADH

Reference: PubMed ID: 14555469
Authors: Seiboth B, Hartl L, Pail M, Kubicek CP
Title: D-xylose metabolism in Hypocrea jecorina: loss of the xylitol dehydrogenase step can be partially compensated for by lad1-encoded L-arabinitol-4-dehydrogenase.
Published: 2003 Oct

NAD + xylitol --> D-xylulose + NADH