Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Huaiyin Normal University, 111 Changjiangxi Road, Huaian 223300, China.
Jiangsu Collaboration Innovation Center of Chinese Medical Resources Industrialization, College of Pharmacy, and State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
Bioresour Technol. 2018 Feb;249:1058-1061. doi: 10.1016/j.biortech.2017.10.018. Epub 2017 Oct 16.
High cost of ionic liquids (ILs) restricts the industrial application of IL-mediated lignocellulose pretreatment. In this study, a simple and economic technology for the pretreatment of natural lignocellulose was developed. The delignification capacity of aqueous choline ornithine ([Cho][Orn]) and hemicellulose-removal capacity of metal salt FeCl were combined. The changes of morphological structure and composition indicated a synergistic interaction of [Cho][Orn] and FeCl in the pretreatment process. The delignification and hemicellulose-removal capacity of aqueous [Cho][Orn] solution was significantly improved in the presence of FeCl by 28% and 53%, respectively. The combination use of FeCl and [Cho][Orn] made it possible to save the amount of IL used for pretreatment in half. Enhancement effect of metal salts on the IL-pretreatment efficiency was proved.
高成本的离子液体（ILs）限制了 IL 介导的木质纤维素预处理的工业应用。在这项研究中，开发了一种简单经济的天然木质纤维素预处理技术。结合了水相胆碱鸟氨酸([Cho][Orn])的脱木质素能力和金属盐 FeCl 的半纤维素去除能力。形态结构和组成的变化表明，[Cho][Orn]和 FeCl 在预处理过程中存在协同作用。在 FeCl 的存在下，水相[Cho][Orn]溶液的脱木质素和半纤维素去除能力分别显著提高了 28%和 53%。FeCl 和 [Cho][Orn]的组合使用使得预处理过程中 IL 的用量减少了一半。证明了金属盐对 IL 预处理效率的增强作用。
