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19 results on '"GUO Jian"'

16. Significantly enhanced enzymatic hydrolysis of rice straw via a high-performance two-stage deep eutectic solvents synergistic pretreatment

Author

Chao-Mei Huang, Guo-Jian Feng, Mei Ye, Yi Zhang, and Xue-Dan Hou

Subjects
Environmental Engineering, 020209 energy, Oxalic acid, Bioengineering, 02 engineering and technology, 01 natural sciences, chemistry.chemical_compound, Enzymatic hydrolysis, 0202 electrical engineering, electronic engineering, information engineering, Biomass, Cellulose, Sugar, Waste Management and Disposal, Chromatography, 010405 organic chemistry, Renewable Energy, Sustainability and the Environment, Hydrolysis, Oryza, General Medicine, 0104 chemical sciences, chemistry, Yield (chemistry), Solvents, Urea, Malic acid, Choline chloride
Abstract

A two-stage deep eutectic solvents (DESs) treatment was shown to be an effective method for improving the utilization of certain DESs, and the specific order of pretreatment, such as malic acid/proline (MP) or choline chloride/oxalic acid (CO) during the first stage and choline chloride/urea (CU) during the second stage, resulted in better performance for enhancing the sugar yield due to the synergistic effect of the two DESs on biomass fractionation. Moreover, the presence of water during these processes could balance the loss of components by tuning the pretreatment severity, thus ensuring higher sugar yields. By eliminating the washing step after the first stage treatment, enhanced cellulose recovery and glucose yield were achieved for the CO-CU pretreatment in the presence of 5% water, and a simpler process was established with a glucose yield of 90.2% after a 3-h treatment at 100°C.

Published
2017

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