考察了农林废弃物橡子壳作为原料发酵制备乙醇的可行性。研究了稀碱法预处理在不同条件下(温度、时间、浓度)对酶水解的影响。结果发现以2%Na OH,121℃(0.15 MPa)处理60 min的条件下预处理效果较好,木素去除率达到39.34%,经酶水解,单糖得率(葡萄糖、木糖、阿拉伯糖)达到606.36 mg/g(预处理原料)。经过嗜单宁管囊酵母发酵60 h,乙醇浓度达到11.96 g/L,为理论产率的85.4%。

The suitability of oak shell wastes used as feedstock for bioethanol production was studied. The impacts of varying pretreatment parameters such as temperature,time,and alkali concentration of alkali pretreatment on enzymatic hydrolysis of oak shell were investigated. Results showed that pretreatment with 2% Na OH at 121 ℃( 0. 15MPa) for 60 min was optimal,which resulted in the highest delignification of 39. 34% and sugar yield of 606. 36 mg / g origin material. The ethanol concentration reached 11. 96 g / L after fermentation with Pachysolen tannophilus for 60 h,which was 85. 4 % of the theoretical yield.