摘要
胡枝子茎杆在210℃蒸汽爆破处理2、4、6min,然后进行同步糖化发酵制备乙醇。其乙醇的产率分别是理论产率的59.3%、72.8%和62.2%(未爆破处理的胡枝子茎杆乙醇产率为理论产率的16.4%)。研究表明,经过蒸汽爆破处理后胡枝子纤维素的利用率大幅度提高,爆破处理后乙醇产率比未爆破处理的乙醇产率提高了4.65倍。
Lespedeza stalks were subjected to steam pretreatment at 210 ℃ for some residence time before simultaneous saccharificatlon and fermentation （SSF）. Cellulose-derived glucose was extensively utilized by yeast during SSF, The ethanol yield after steam pretreatment of the lespedeza stalks at 210 ℃ was 59, 3 %, 72.8 % and 62.2 % of theoretical yield when the residence time was 2, 4 and 6 min, respectively, whereas the highest yields from α-cellulose were 92.7 % of theoretical yield. Steam explosion pretreatment of lespedeza stalks increased the ethanol yields by a factor 4.4, from 16.4 % （untreated） to 72.8 % （steam explosion pretreated）.
出处
《生物质化学工程》
CAS
2006年第B12期165-168,共4页
Biomass Chemical Engineering
关键词
胡枝子茎杆
蒸汽爆破
同步糖化发酵
乙醇
lespedeza stalks
steam explosion
simultaneous saccharification and fermentation
ethanol
