Continuous Xylitol Production from Synthetic Xylose Solutions by Candida guilliermondii: Influence of pH and Temperature

The effects of pH and temperature on continuous xylitol production by Candida guilliermondii have been studied under semiaerobic conditions. The specific productivites obtained at different pH have been used in the model proposed by Villadsen et al. with the aim to get information on the enzyme limiting xylitol production. The kinetic results obtained at different temperatures have been utilized to estimate the thermodynamic parameters either of the reduction of xylose to xylitol or of the biocatalyst thermal inactivation.