Biobased lignin-blockers enable efficient production of glucose from lignocelluloses

被引：1
作者：
Yang, Guangxu [1 ]
Gong, Zhenggang [1 ]
Huang, Lizhen [1 ]
Luo, Xiaolin [1 ,2 ,3 ]
Shuai, Li [1 ,2 ]
Liu, Jing [1 ,2 ]
机构：
[1] Fujian Agr & Forestry Univ, Coll Mat Engn, Fuzhou 350002, Peoples R China
[2] Natl Forestry & Grassland Adm, Key Lab Plant Fiber Funct Mat, Fuzhou 350002, Peoples R China
[3] Nanjing Forestry Univ, Jiangsu Prov Key Lab Pulp & Paper Sci & Technol, Nanjing 210037, Jiangsu, Peoples R China
来源：
INDUSTRIAL CROPS AND PRODUCTS | 2023年 / 205卷
基金：
中国国家自然科学基金;
关键词：
Enzymatic hydrolysis; Cellulose accessibility; Lignin-blocker; Plant protein; Lignocellulose; ENZYMATIC-HYDROLYSIS; BIOMASS PRETREATMENT; MILD CONDITIONS; WOODY BIOMASS; DILUTE-ACID; CELLULOSE; REMOVAL; FRACTIONATION; NANOMECHANICS; INHIBITION;
D O I：
10.1016/j.indcrop.2023.117505
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Enzymatic hydrolysis of cellulose in lignocelluloses exhibits low efficiency due to low cellulose accessibility and adverse lignin effects. By using phenylsulfonic acid pretreatment to improve cellulose accessibility, we have developed several new plant proteins such as corn germ and green rapeseed proteins that extracted from inexpensive defatted meals as lignin-blockers. For pretreated lignocellulosic substrates with high cellulose accessibility, such plant proteins could effectively overcome negative lignin effects and achieve robust cellulose enzymatic conversion (88-97 %) at a low cellulase loading of 5 FPU/g glucan. To reach the same level of cellulose enzymatic conversion, adding corn germ protein could save cellulase loading by 3.6 times as compared to those without lignin-blockers. But these plant proteins showed insignificant promotion effects on substrates with low cellulose accessibility. Overall, this study coupled high cellulose-accessible substrates and efficient ligninblockers to synergistically improve the profitability of lignocellulosic biorefinery.
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页数：9
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