Mild alkaline pretreatment was evaluated as a strategy for effective lignin removal and hydrolysis of rice straw. The pretreatment efficiency of different NaOH concentrations (0.5, 1.0, 1.5 or 2.0% w/w) was assessed. Rice straw (RS) pretreated with 1.5% NaOH achieved better sugar yield compared to other concentrations used. A cellulose conversion efficiency of 91% (45.84 mg/ml glucose release) was attained from 1.5% NaOH pretreated rice straw (PRS), whereas 1% NaOH pretreated rice straw yielded 35.10 mg/ml of glucose corresponding to a cellulose conversion efficiency of 73.81%. The ethanol production from 1% and 1.5% NaOH pretreated RS hydrolysates was similar at ∼3.3% (w/v), corresponding to a fermentation efficiency of 86%. The non-detoxified hydrolysate was fermented using the novel yeast strain Saccharomyces cerevisiae RPP-03O without any additional supplementation of nutrients.

轻度碱预处理被评估为有效去除稻草中木质素和水解稻草的策略。评估了不同NaOH浓度（0.5、1.0、1.5或2.0％w / w）的预处理效率。与使用的其他浓度相比，用1.5％NaOH预处理的稻草（RS）可获得更好的糖产量。从1.5％NaOH预处理的稻草（PRS）中获得91％的纤维素转化效率（45.84 mg / ml葡萄糖释放），而1％NaOH预处理的稻草产生35.10 mg / ml的葡萄糖，对应于73.81的纤维素转化效率％。1％和1.5％NaOH预处理的RS水解产物的乙醇产量约为3.3％（w / v），相当于86％的发酵效率。使用新型酵母菌株酿酒酵母发酵未解毒的水解产物 RPP-03O无需任何其他营养补充。