A model of furfural-inhibited growth and xylitol production by Candida magnoliae TISTR 5663

作者：Wannawilai Siwa****; Chisti Yusuf; Sirisansaneeyakul Sarote^*

来源：Food and Bioproducts Processing, 2017, 105: 129-140.

DOI：10.1016/j.fbp.2017.07.002

• Xylitol
• Xylose
• Furfural
• Fermentation model
• Candida magnoliae

Furfural, an inhibitor of yeast growth, occurs in xylose-containing lignocellulosic hydrolysates that are potential substrates for the fermentative production of the natural sweetener xylitol from xylose. Effects of furfural on growth and xylitol production by the yeast Candida magnoliae TISTR 5663 are reported. Aerobic as well as oxygen limited conditions were used to assess the effects of furfural. A mathematical model was developed to predict the behavior of this fermentation. The model was validated using independent experimental data. The model and its kinetic parameters are reported. Furfural was found to be a competitive inhibitor of growth. Nevertheless, the presence of a certain amount of furfural (similar to 0.3 g L-1) in the production medium actually improved the productivity of xylitol and its yield from xylose under suitable oxygen limited conditions.

• 出版日期2017-9