Overcoming biomass recalcitrance by synergistic pretreatment of mechanical activation and metal salt for enhancing enzymatic conversion of lignocellulose
Overcoming biomass recalcitrance by synergistic pretreatment of mechanical activation and metal salt for enhancing enzymatic conversion of lignocellulose
复制标题
通过机械活化和金属盐的协同预处理克服生物质顽抗性以增强木质纤维素的酶转化
DOI：
10.1186/s13068-019-1354-6
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发表时间：
2019-01
影响因子：
6.3
通讯作者：
Zhenfei Feng
中科院分区：
文献类型：
--
作者：
Yanjuan Zhang;Min Huang;Jianmei Su;Huayu Hu;Mei Yang;Zuqiang Huang;Dong Chen;Juan Wu;Zhenfei Feng
BackgroundDue to biomass recalcitrance, including complexity of lignocellulosic matrix, crystallinity of cellulose, and inhibition of lignin, the bioconversion of lignocellulosic biomass is difficult and inefficient. The aim of this study is to investigate an effective and green pretreatment method for overcoming biomass recalcitrance of lignocellulose.ResultsAn effective mechanical activation (MA) + metal salt (MAMS) technology was applied to pretreat sugarcane bagasse (SCB), a typical kind of lignocellulosic biomass, in a stirring ball mill. Chlorides and nitrates of Al and Fe showed better synergistic effect with MA, especially AlCl3, ascribing to the interaction between metal salt and oxygen-containing groups induced by MA. Comparative studies showed that MAMS pretreatment effectively changed the recalcitrant structural characteristics of lignocellulosic matrix and reduced the inhibitory action of lignin on enzymatic conversion of SCB. The increase in hydroxyl and carboxyl groups of lignin induced by MAMS pretreatment led to the increase of its hydrophilicity, which could weaken the binding force between cellulase and lignin and reduce the nonproductive binding of cellulase enzymes to lignin.ConclusionsMAMS pretreatment significantly enhanced the enzymatic digestibility of polysaccharides substrate by overcoming biomass recalcitrance without the removal of lignin from enzymatic hydrolysis system.
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影响因子：
6.3
作者：
Tsuchida JE;Rezende CA;de Oliveira-Silva R;Lima MA;d'Eurydice MN;Polikarpov I;Bonagamba TJ
通讯作者：
Bonagamba TJ
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。
影响因子：
11.4
作者：
Jiaxing Xu;Jiming Xu;Sen Zhang;Jun Xia;Xiaoyan Liu;Xiaozhong Chu;Jinao Duan;Xiangqian Li
通讯作者：
Xiangqian Li
影响因子：
6.3
作者：
Park S;Baker JO;Himmel ME;Parilla PA;Johnson DK
通讯作者：
Johnson DK
影响因子：
4.3
作者：
Balakshin, Mikhail;Capanema, Ewellyn;Jameel, Hasan
通讯作者：
Jameel, Hasan
影响因子：
5.7
作者：
Wei Zhang;Mei Liang;Canhui Lu
通讯作者：
Wei Zhang;Mei Liang;Canhui Lu