文献类型：期刊文献

英文题名：Effect of ionic liquid/inorganic salt/water pretreatment on the composition, structure and enzymatic hydrolysis of rice straw

作者：Gao, Jing[1]; Xin, Shaoli[1]; Wang, Liyuan[1]; Lei, Youfeng[1]; Ji, Hongwu[1]; Liu, Shucheng[1]

机构：[1] College of Food Science and Technology, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Ocean University, Zhanjiang, 524088, China

年份：2019

卷号：5

起止页码：355

外文期刊名：Bioresource Technology Reports

收录：EI(收录号：20211010031745)、Scopus(收录号：2-s2.0-85076063940)

语种：英文

外文关键词：Biomass - Additives - Potash - Saccharification - Chlorine compounds - Enzymatic hydrolysis

外文摘要：Albeit ionic liquid (IL) pretreatment has been demonstrated to effectively enhance the saccharification of lignocellulosic biomass, extremely high costs of ILs still restrict its scale-up. If the ILs at high water content can be used as pretreatment solvents for lignocellulosic biomass, the chemical costs will be significantly reduced. However, the dissolving capacity of the ILs was notably decreased when water contents exceeded within limits. In this work, inorganic salts (K3PO4 and K2CO3) were added as additives of imidazolium-based IL/water systems to improve tolerance of ILs in the presence of water. The pretreatment with 50% 1-ethyl-3-methylimidazolium chloride ([C2mim]Cl) + 49.5% water + 0.5% K2CO3 at 95 °C for 3 h improved lignin removal to 69.32%, and also increased the surface areas as compared to untreated rice straw. The reducing sugar yield of the regenerated materials was increased to 82.45% after 72 h enzymatic hydrolysis. ? 2018 Elsevier Ltd