skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Maximizing enzymatic hydrolysis efficiency of bamboo with a mild ethanol-assistant alkaline peroxide pretreatment

Abstract

In this study, to overcome the delignification saturation point in traditional alkaline hydrogen peroxide pretreatment (AHP), a powerful modified AHP delignification methodology was established by introducing ethanol into the system. The pretreatment caused significant lignin removal of bamboo at elevated pretreatment temperature with the highest lignin removal reaching 80.0% at 100 °C, higher than that (74.9% lignin removal) in pretreatment without the ethanol assistance. In addition, a certain amount of carbohydrates was also solubilized during the process whose recovery was 83.3% (glucan) and 67.6% (hemicellulose), respectively. The pretreated solid exhibited excellent enzymatic digestibility, with hydrolysis yields of ~100% and 95.7% for glucan and xylan, respectively. Our studies further indicate that this delignification methodology is versatile for hardwood and herbaceous plants, but does not perform well on softwood.

Authors:
 [1];  [2];  [3];  [3];  [4];  [5];  [5]; ORCiD logo [6]
  1. Chinese Academy of Forestry, Nanjing (China). Inst. of Chemical Industry of Forest Products; Nanjing Forestry Univ. (China). Co-Innovation Center for Efficient Processing and Utilization of Forest Resources; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering
  2. Chinese Academy of Forestry, Nanjing (China). Inst. of Chemical Industry of Forest Products; Nanjing Forestry Univ. (China). Co-Innovation Center for Efficient Processing and Utilization of Forest Resources
  3. Nanjing Forestry Univ. (China). Co-Innovation Center for Efficient Processing and Utilization of Forest Resources
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering
  5. Chinese Academy of Forestry, Nanjing (China). Inst. of Chemical Industry of Forest Products
  6. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering and Dept. of Forestry, Wildlife, and Fisheries, Center for Renewable Carbon; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). UTK-ORNL Joint Institute for Biological Science, Biosciences Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1649143
Grant/Contract Number:  
AC05-00OR22725; LHSXKQ8
Resource Type:
Accepted Manuscript
Journal Name:
Bioresource Technology
Additional Journal Information:
Journal Volume: 299; Journal ID: ISSN 0960-8524
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; bamboo; low-temperature pretreatment; alkaline hydrogen peroxide; delignification; enzymatic hydrolysis

Citation Formats

Huang, Chen, Fang, Guigan, Yu, Longxiang, Zhou, Yang, Meng, Xianzhi, Deng, Yongjun, Shen, Kuizhong, and Ragauskas, Arthur J. Maximizing enzymatic hydrolysis efficiency of bamboo with a mild ethanol-assistant alkaline peroxide pretreatment. United States: N. p., 2019. Web. https://doi.org/10.1016/j.biortech.2019.122568.
Huang, Chen, Fang, Guigan, Yu, Longxiang, Zhou, Yang, Meng, Xianzhi, Deng, Yongjun, Shen, Kuizhong, & Ragauskas, Arthur J. Maximizing enzymatic hydrolysis efficiency of bamboo with a mild ethanol-assistant alkaline peroxide pretreatment. United States. https://doi.org/10.1016/j.biortech.2019.122568
Huang, Chen, Fang, Guigan, Yu, Longxiang, Zhou, Yang, Meng, Xianzhi, Deng, Yongjun, Shen, Kuizhong, and Ragauskas, Arthur J. Sat . "Maximizing enzymatic hydrolysis efficiency of bamboo with a mild ethanol-assistant alkaline peroxide pretreatment". United States. https://doi.org/10.1016/j.biortech.2019.122568. https://www.osti.gov/servlets/purl/1649143.
@article{osti_1649143,
title = {Maximizing enzymatic hydrolysis efficiency of bamboo with a mild ethanol-assistant alkaline peroxide pretreatment},
author = {Huang, Chen and Fang, Guigan and Yu, Longxiang and Zhou, Yang and Meng, Xianzhi and Deng, Yongjun and Shen, Kuizhong and Ragauskas, Arthur J.},
abstractNote = {In this study, to overcome the delignification saturation point in traditional alkaline hydrogen peroxide pretreatment (AHP), a powerful modified AHP delignification methodology was established by introducing ethanol into the system. The pretreatment caused significant lignin removal of bamboo at elevated pretreatment temperature with the highest lignin removal reaching 80.0% at 100 °C, higher than that (74.9% lignin removal) in pretreatment without the ethanol assistance. In addition, a certain amount of carbohydrates was also solubilized during the process whose recovery was 83.3% (glucan) and 67.6% (hemicellulose), respectively. The pretreated solid exhibited excellent enzymatic digestibility, with hydrolysis yields of ~100% and 95.7% for glucan and xylan, respectively. Our studies further indicate that this delignification methodology is versatile for hardwood and herbaceous plants, but does not perform well on softwood.},
doi = {10.1016/j.biortech.2019.122568},
journal = {Bioresource Technology},
number = ,
volume = 299,
place = {United States},
year = {2019},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share: