Synergistic effects of metal salt and ionic liquid on the pretreatment of sugarcane bagasse for enhanced enzymatic hydrolysis.

Synergistic effects of metal salt and ionic liquid on the pretreatment of sugarcane bagasse for enhanced enzymatic hydrolysis.
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金属盐和离子液体在甘蔗渣预处理中的协同作用以增强酶水解。

DOI:
10.1016/j.biortech.2017.10.018
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发表时间:
2017-10
影响因子:
11.4
通讯作者:
Xiangqian Li
Xiangqian Li
中科院分区:
工程技术1区
文献类型:
--
作者:
Jiaxing Xu;Jiming Xu;Sen Zhang;Jun Xia;Xiaoyan Liu;Xiaozhong Chu;Jinao Duan;Xiangqian Li

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离子液体(IL)的高成本限制了IL介导的木质纤维素预处理的工业应用。在本研究中,开发了一种简单且经济的天然木质纤维素预处理技术。将水性胆碱鸟氨酸([Cho][Orn])的脱木质素能力和金属盐FeCl2的半纤维素去除能力结合起来。形态结构和组成的变化表明[Cho][Orn]和FeCl2在预处理过程中存在协同相互作用。 FeCl2 存在下,[Cho][Orn]50% 水溶液的脱木质素和半纤维素去除能力分别显着提高 28% 和 53%。 FeCl2和[Cho][Orn]的组合使用使得用于预处理的IL的量可以节省一半。金属盐对 IL 预处理效率的增强作用得到了证明。
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 FeCl2were combined. The changes of morphological structure and composition indicated a synergistic interaction of [Cho][Orn] and FeCl2in the pretreatment process. The delignification and hemicellulose-removal capacity of aqueous [Cho][Orn]50%solution was significantly improved in the presence of FeCl2by 28% and 53%, respectively. The combination use of FeCl2and [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.
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