Effect of peracetic acid generation in hydrogen peroxide-acetic acid pretreatment on production of xylooligosaccharides from poplar by organic acid hydrolysis

被引：7
|
作者：
Lin, Zihe [1 ]
Ying, Wenjun [1 ]
Wen, Peiyao [1 ]
Lian, Zhina [1 ,2 ,3 ]
Zhang, Junhua [1 ,2 ,3 ]
机构：
[1] Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210037, Peoples R China
[2] Nanjing Forestry Univ, Minist Educ, Key Lab Forestry Genet & Biotechnol, Nanjing 210037, Peoples R China
[3] Jiangsu Prov Key Lab Green Biomass Based Fuels & C, Nanjing 210037, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2023年 / 376卷
基金：
中国国家自然科学基金;
关键词：
Delignification; Acetic acid hydrolysis; Lactic acid hydrolysis; Functional oligosaccharides; Enzymatic hydrolysis; ENZYMATIC-HYDROLYSIS; PEROXYFORMIC ACID; LIGNIN; KINETICS; CORNCOB; IMPACT; YIELDS;
D O I：
10.1016/j.biortech.2023.128848
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Hydrogen peroxide-acetic acid (HPAA) compositions affect the peracetic acid generation and subsequent delignification of lignocellulosic materials. However, the effects of HPAA compositions on lignin removal and poplar hydrolyzability after HPAA pretreatment are not fully elucidated yet. In this work, different volume ratios of HP to AA were used to pretreat poplar, AA and lactic acid (LA) hydrolysis of delignified poplar to produce XOS was compared. Peracetic acid was mainly produced in 1 h of HPAA pretreatment. HPAA with HP to AA ratio of 8:2 (HP8AA2) generated 4.4% peracetic acid and removed 57.7% of lignin at 2 h. Furthermore, XOS production from HP8AA2-pretreated poplar by AA and LA hydrolysis was increased by 97.1% and 14.9% compared to those from raw poplar, respectively. After alkaline incubation, the glucose yield of HP8AA2-AA-pretreated poplar increased from 40.1% to 97.1%. The study results indicated that HP8AA2 was conducive to XOS and mono-saccharides production from poplar..
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页数：10
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