期刊
GREEN CHEMISTRY
卷 13, 期 11, 页码 3107-3110出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1gc15691h
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资金
- Energy Biosciences Institute
Arapid screen was developed to test the stability of proteins in ionic liquid-aqueous mixtures using green fluorescent protein (GFP) as a reporter. In at least one ionic liquid (IL), GFP retained 50% or more of its fluorescence in IL volume fractions as high as 75%. ILs that best preserved GFP fluorescence also showed the best retention of cellulase activity. Using this screen, two potential candidates for in situ enzymatic hydrolysis of biomass, 1,3-dimethylimidazolium dimethylphosphate (Mmim DMP) and 1-ethyl-3-methylimidazolium (Emim) lactate, were identified. A commercial Trichoderma reesei cellulase mixture retained activity in both ILs up to 40% (w/w) IL, and beta-glucosidase remained active after incubation in 60% (w/w) Mmim DMP for 8 h, indicating the possibility of in situ cellulose hydrolysis in IL-water mixtures.
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