Studies on xylitol production by metabolic pathway engineered Debaryomyces hansenii

The oxygen availability, in terms of volumetric oxygen transfer coefficient, kLa (23.86-87.96 h−1), affected both xylitol productivity and yield, though the effect is more pronounced on the former. The addition of extra xylose at different phases of xylitol fermentation did not enhance xylitol productivity under experimental conditions.