Cosolvent enhanced lignocellulosic fractionation tailoring lignin chemistry and enhancing lignin bioconversion
Abstract
Cosolvent Enhanced Lignocellulosic Fractionation (CELF) is an emerging solvolysis pretreatment to fractionate lignocellulosic biomass. Herein, the bioconversion performance of CELF lignin was fully evaluated for the first time. Results showed that CELF lignin possessed higher content of carboxylic acid OH, lower molecular weight, and disappeared β-O-4 and β-5 linkages compared to other two technical lignins including a conventional ethanol organosolv lignin (EOL) and a kraft lignin (KL). Rhodococcus opacus PD630 cell count from CELF lignin fermentation reached the highest value of 3.9 107 CFU/mL, representing a 62.5% and 77.3% improvement over EOL and KL, respectively. Correspondingly, lipid yield reached 143 mg/L from CELF lignin, which was 36.2% and 26.5% higher than from EOL and KL, respectively. Principal component analysis (PCA) revealed that more carboxylic acid groups and lower molecular weight contributed to the enhanced bioconversion performance of CELF lignin. This study demonstrates that CELF lignin is a promising candidate for bioconversion.
- Authors:
-
- Inner Mongolia Univ., Hohhot (China); Univ. of Tennessee, Knoxville, TN (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Univ. of California, Riverside, CA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Tianjin Univ., Tianjin (China)
- Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER); National Natural Science Foundation of China (NSFC)
- OSTI Identifier:
- 1843678
- Alternate Identifier(s):
- OSTI ID: 1868602
- Grant/Contract Number:
- AC05-00OR22725; 21706136; 21766025
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Bioresource Technology
- Additional Journal Information:
- Journal Volume: 347; Journal Issue: TBD; Journal ID: ISSN 0960-8524
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; bioconversion; Co-solvent Enhanced Lignocellulosic Fractionation (CELF); Rhodococcus opacus PD630; Lignin valorization
Citation Formats
Zhao, Zhi-Min, Meng, Xianzhi, Scheidemantle, Brent, Pu, Yunqiao, Liu, Zhi-Hua, Li, Bing-Zhi, Wyman, Charles E., Cai, Charles M., and Ragauskas, Arthur J. Cosolvent enhanced lignocellulosic fractionation tailoring lignin chemistry and enhancing lignin bioconversion. United States: N. p., 2021.
Web. doi:10.1016/j.biortech.2021.126367.
Zhao, Zhi-Min, Meng, Xianzhi, Scheidemantle, Brent, Pu, Yunqiao, Liu, Zhi-Hua, Li, Bing-Zhi, Wyman, Charles E., Cai, Charles M., & Ragauskas, Arthur J. Cosolvent enhanced lignocellulosic fractionation tailoring lignin chemistry and enhancing lignin bioconversion. United States. https://doi.org/10.1016/j.biortech.2021.126367
Zhao, Zhi-Min, Meng, Xianzhi, Scheidemantle, Brent, Pu, Yunqiao, Liu, Zhi-Hua, Li, Bing-Zhi, Wyman, Charles E., Cai, Charles M., and Ragauskas, Arthur J. Thu .
"Cosolvent enhanced lignocellulosic fractionation tailoring lignin chemistry and enhancing lignin bioconversion". United States. https://doi.org/10.1016/j.biortech.2021.126367. https://www.osti.gov/servlets/purl/1843678.
@article{osti_1843678,
title = {Cosolvent enhanced lignocellulosic fractionation tailoring lignin chemistry and enhancing lignin bioconversion},
author = {Zhao, Zhi-Min and Meng, Xianzhi and Scheidemantle, Brent and Pu, Yunqiao and Liu, Zhi-Hua and Li, Bing-Zhi and Wyman, Charles E. and Cai, Charles M. and Ragauskas, Arthur J.},
abstractNote = {Cosolvent Enhanced Lignocellulosic Fractionation (CELF) is an emerging solvolysis pretreatment to fractionate lignocellulosic biomass. Herein, the bioconversion performance of CELF lignin was fully evaluated for the first time. Results showed that CELF lignin possessed higher content of carboxylic acid OH, lower molecular weight, and disappeared β-O-4 and β-5 linkages compared to other two technical lignins including a conventional ethanol organosolv lignin (EOL) and a kraft lignin (KL). Rhodococcus opacus PD630 cell count from CELF lignin fermentation reached the highest value of 3.9 107 CFU/mL, representing a 62.5% and 77.3% improvement over EOL and KL, respectively. Correspondingly, lipid yield reached 143 mg/L from CELF lignin, which was 36.2% and 26.5% higher than from EOL and KL, respectively. Principal component analysis (PCA) revealed that more carboxylic acid groups and lower molecular weight contributed to the enhanced bioconversion performance of CELF lignin. This study demonstrates that CELF lignin is a promising candidate for bioconversion.},
doi = {10.1016/j.biortech.2021.126367},
journal = {Bioresource Technology},
number = TBD,
volume = 347,
place = {United States},
year = {Thu Nov 18 00:00:00 EST 2021},
month = {Thu Nov 18 00:00:00 EST 2021}
}
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