以热带假丝酵母SFX-Y9为研究对象考察葡萄糖添加对其木糖醇发酵的影响。研究发现菌株SFX-Y9以葡萄糖为碳源培养种子，不仅可以提高菌体浓度、缩短培养时间，并且对木糖的转化基本没有影响；发酵培养基中添加少量葡萄糖可以提高木糖消耗速率、缩短发酵周期。采用5L发酵罐通过精准控制过程溶氧和低流速流加葡萄糖可以进一步提高木糖消耗速率，同时可以提高木糖转化率约15%。在最佳供氧和葡萄糖为辅助碳源的条件下，菌株SFX-Y9木糖醇最大生产速率可达5.0g/L/h以上，转化率可达80%以上，生产成本可以与化学加氢竞争，具有非常好的工业开发应用前景。

The effects of glucose on xylitol fermentation byCandida tropicalis SFX-Y9 was studied in this paper. Results showed that strains SFX - Y9 with glucose as carbon source to cultivate seeds can shorten training time, improve the concentration of cells, and had little influence upon conversion of xylose.When the fermentation medium was supplemented with a small amount of glucose, it can increase the consumption rate of xylose and shorten the fermentation cycle. Through the control of dissolved oxygen and the glucose fed-batchcan further increase the rate of xylose consumption in 5L fermentor, and the conversion rate of xylose increased by about 15%.Under the condition ofoptimal oxygensupply and glucose as a secondarycarbon source, the production rate of xylitol can reach 5.0 g/L/h,and the rate of conversion can reach more than 80%.The production cost of xylitol by microbial conversion can compete with the chemical hydrogenation, and it has a bright application future.