乙醇燃料
软木
水解物
发酵
生物量(生态学)
原材料
化学
制浆造纸工业
乙醇发酵
乙醇
纤维素乙醇
酵母
水解
析因实验
酶水解
食品科学
生物化学
有机化学
纤维素
数学
农学
工程类
生物
统计
作者
Iulian-Zoltan Boboescu,Malorie Gélinas,Jean-Baptiste Beigbeder,Jean‐Michel Lavoie
标识
DOI:10.1016/j.biortech.2017.07.107
摘要
Ethanol production using waste biomass represents a very attractive approach. However, there are considerable challenges preventing a wide distribution of these novel technologies. Thus, a fractional-factorial screening of process variables and Saccharomyces cerevisiae yeast inoculum conditions was performed using a synthetic fermentation media. Subsequently, a response-surface methodology was developed for maximizing ethanol yields using a hemicellulosic solution generated through the chemical hydrolysis of steam treatment broth obtained from residual softwood biomass. In addition, nutrient supplementation using starch-based ethanol production by-products was investigated. An ethanol yield of 74.27% of the theoretical maximum was observed for an initial concentration of 65.17 g/L total monomeric sugars. The two-step experimental strategy used in this work represents the first successful attempt to developed and use a model to make predictions regarding the optimal ethanol production using both softwood feedstock residues as well as 1st generation ethanol production by-products.
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