Huyen Thanh Vo Kim, Chang Soo Lee, Sang Deuk Lee, Hyunjoo 2024-01-20T03:34:32Z 2024-01-20T03:34:32Z 2021-09-04 2016-08 0253-2964 https://pubs.kist.re.kr/handle/201004/123845 To utilize carbohydrates in lignocellulosic biomass, a fractionation of lignocellulose is crucial. In this study, poplar wood sawdust was treated with a mixture of ionic liquids, 1-butyl-3-methylimidazolium acetate ([Bmim][OAc]) and 1,3-dimethylimidazolium methyl phosphite ([Dmim][MeO(H)PO2]), to separate carbohydrate and lignin components from wood. Three types of product were isolated: water-soluble wood (WSW), water-insoluble wood (WIW), and wood in ionic liquids (WIL). At a dissolution temperature of 130 degrees C for 18 h, WSW was found to have high carbohydrate and low lignin contents of 81.0 and 3.5%, respectively, corresponding to a delignification efficiency of 88.9%. WIW isolated under the same condition was found to have 55% of the lignin of native poplar. However, with an increase in the dissolution temperature and the time, the yield of WIL increased due to the increased phosphorylation in both carbohydrate and lignin, forming a mixture of carbohydrate and lignin having phosphorylated ionic functional groups. English 대한화학회 Ionic Liquid-assisted Separation of Carbohydrates from Lignocellulosic Biomass Article 10.1002/bkcs.10860 1 Bulletin of the Korean Chemical Society, v.37, no.8, pp.1305 - 1312 Bulletin of the Korean Chemical Society 37 8 1305 1312 N scie scopus kci ART002132092 000381037000023 2-s2.0-84982845376 Chemistry, Multidisciplinary Chemistry Article DISSOLUTION WOOD LIGNIN PRETREATMENT REGENERATION Lignocellulose Ionic liquid Carbohydrate Delignification Separation