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Pretreatment with solid base catalysts addressed the challenge of recalcitrance of the lignocellulosic cell wall and provided insight into an economical and environmentally friendly biorefinery technology. Several solid base catalysts were prepared, to establish a reliable assessment of the factors governing their catalytic behaviors. The activity of solid base catalysts, allowing the more accessible...
A novel lignin-derived deep eutectic solvent (DES) was synthesized from choline chloride (ChCl) and p-coumaric acid (PCA). The results showed that after pretreatment with lignin-derived DES, the dense cellulose–hemicellulose–lignin structure of herb residues of Cortex albiziae (HRCA) was effectively broken down and this facilitated subsequent enzymatic hydrolysis. The optimum pretreatment conditions...
A step-change flow rate liquid hot water (SCFLHW) process was developed with the objective of improving the total sugars recovery including xylose and glucose from sweet sorghum bagasse (SSB). Total xylose yield increased from 60% for batch system (4.25% w/v, 18min, 184°C) to about 80% at an initial flow rate of 20ml/min for 8min, followed by a rate of 10ml/min for 10min. It was hypothesized that...
A two-step liquid hot water pretreatment (TSLHW) was developed with the objective of achieving complete saccharification of both hemicellulose and cellulose of Eucalyptus grandis, thereby avoiding the problems associated with the use of strong acid catalysts. The first step of the pretreatment was studied in the temperature range 180–200°C, and the highest yield of total xylose achieved was 86.4%...
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