Xylose consumption increased by 41%, which is inagreement with previously reported results by Jiang et al. (2014),demonstrating that a pH control strategy can improve the xyloseuse due to mechanisms related to the induction of transport sys-tems, glycolytic enzymes and co-factor generation improvement.The concentration of acetic and butyric acids accumulated at theend of the fermentation was 1.66 and 1.60 g/L respectively, com-pared to 4.48 and 3.08 g/L previously obtained