期刊
BIORESOURCE TECHNOLOGY
卷 250, 期 -, 页码 429-438出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.11.064
关键词
Imidazolium-based ionic liquid [Bmim]Cl; Pretreatment of biomass; Simultaneous enzymatic saccharification and microbial fermentation (SSF); Immobilized cells; Cryogel of polyvinyl alcohol
资金
- Federal Target Program Research and development on priority directions of scientific-technology complex of Russia [RFMEFI61617X0081]
The pretreatment of softwood and hardwood samples (spruce and hornbeam wood) with 1-butyl-3-methylimidazolium chloride ([Bmim] Cl) was undertaken for further simultaneous enzymatic saccharification of renewable non-food lignocellulosic biomass and microbial fermentation of obtained sugars to ethanol and fumaric acid. A multienzyme cocktail based on cellulases and yeast or fungus cells producing ethanol and fumaric acid were the main objects of [Bmim] Cl influence studies. A complex effect of lignocellulosic biomass pretreatment with [Bmim] Cl on various aspects of the process (both action of cellulases and microbial conversion of hydrolysates to target products) was revealed. Positive effects of the pretreatment with [Bmim] Cl included decreasing the lignin content in the biomass, and increasing the effectiveness of enzymatic hydrolysis and microbial transformation of pretreated biomass. Immobilized cells of both yeasts and fungi possessed improved productive characteristics in the biotransformation of biomass pretreated with [Bmim] Cl to ethanol and fumaric acid.
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