Synergism of jet milling and deep eutectic solvent pretreatment on grapevine lignin fractionation and enhancing enzymatic hydrolysis

被引:6
作者
Zhu, Yuan [1 ,2 ,3 ]
Yang, Tian-Xiao [1 ,2 ,4 ]
Li, Hang [1 ,2 ,3 ]
Zhao, Qing-Sheng [1 ,2 ,3 ,5 ]
Zhao, Bing [1 ,2 ,3 ,5 ]
机构
[1] Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Key Lab Biopharmaceut Preparat & Delivery, Beijing 100190, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Beijing City Univ, Dept Biomed, Beijing 100094, Peoples R China
[5] 1 North 2nd St, Beijing, Peoples R China
关键词
Biomass; Physical pretreatment; Deep eutectic solvent; Enzymatic saccharification; Lignin; PHENOLIC-COMPOUNDS; CORN STOVER; ANTIOXIDANT ACTIVITIES; GLUCOSE YIELD; EXTRACTION; ACID; DIGESTIBILITY; INHIBITORS; BIOMASS; DES;
D O I
10.1016/j.ijbiomac.2024.132144
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Herein, we investigated the synergistic effects of jet milling (JM) and deep eutectic solvent (DES) pretreatment on the fractionation of grapevine lignin and the consequent enhancement of enzymatic hydrolysis. Grapevine, a substantial byproduct of the wine industry, was subjected to JM pretreatment to produce finely powdered particles (median diameter D 50 = 98.90), which were then further treated with acidic ChCl-LA and alkaline K 2 CO 3 -EG DESs. The results revealed that the combined JM + ChCl-LA pretreatment significantly increased the cellulose preservation under optimal conditions (110 degrees C, 4 h, and 20 % water content), achieving removal rates of 74.18 % xylan and 66.05 % lignin, respectively. The pretreatment temperature and inhibitor production were reduced, resulting in a remarkable threefold increase in glucose yield compared to untreated samples. Moreover, the structural analysis of the pretreated lignin indicated an enrichment of phenolic units, leading to enhanced antioxidant and antibacterial activities, particularly in the JM pretreated samples. These findings underscore the promising potential of the synergistic JM and DES pretreatment in facilitating the efficient utilization of grapevine lignocellulosic biomass for sustainable biorefinery technologies.
引用
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页数:13
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