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Summary: This study demonstrates that pretreatment with a mixture of choline chloride and glycerol can efficiently extract cellulose from miscanthus and produce a stable ethanol yield, indicating the potential key role of Choline chloride based DESs pretreatment in enhancing the efficiency of biorefinery.
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Ning Li et al.
Summary: In this study, a three-constituent deep eutectic solvent (3c-DES) pretreatment was used to examine its efficiency on bamboo residues. The results showed that the 3c-DES pretreatment effectively removed xylan and improved the hydrolysis yield. The introduction of ethylene glycol (EG) and the addition of Tween 80 further enhanced the effectiveness of the pretreatment. This research has significant implications for the development of bamboo biorefinery.
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Summary: In this study, a deep eutectic solvent comprising choline chloride and acetic acid was used for the pretreatment of rice straw. The optimized conditions for pretreatment were determined using a central composite design approach. The pretreated rice straw showed higher cellulose content and crystallinity index, and exhibited a porous surface. Saccharification of the pretreated rice straw using commercial cellulase resulted in high saccharification efficiency.
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Summary: This study utilized deep eutectic solvent (DES) for pretreating corn stover to improve the efficiency of subsequent saccharification. The optimal conditions were determined using response surface methodology, and it was found that a molar ratio of lactic acid (LA) to choline chloride (ChCl) of 1 at 140 degrees C for 4 hours achieved the highest cellulose and hemicellulose digestibility as well as delignification efficiency. The study also revealed the formation of humins at higher temperatures, which hindered enzymatic accessibility.
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