期刊
BIOTECHNOLOGY FOR BIOFUELS
卷 12, 期 -, 页码 -出版社
BMC
DOI: 10.1186/s13068-019-1376-0
关键词
Biorefinery; Lignin valorization; Aromatic compounds; Metabolism of lignin-based aromatics; Biodegradation; Lignin-degrading bacteria; Lipid production; PHA production; cis; cis-muconic acid production
资金
- National Key R&D Program of China [2016YFE0105400]
- National Natural Science Foundation of China [21808111, 21606132]
- Natural Science Foundation of Jiangsu Province [BK20160823, BK20170829]
- Fundamental Research Funds for the Central Universities [30916011202, 30917011307]
Lignin is the most abundant aromatic substrate on Earth and its valorization technologies are still under developed. Depolymerization and fragmentation are the predominant preparatory strategies for valorization of lignin to chemicals and fuels. However, due to the structural heterogeneity of lignin, depolymerization and fragmentation typically result in diverse product species, which require extensive separation and purification procedures to obtain target products. For lignin valorization, bacterial-based systems have attracted increasing attention because of their diverse metabolisms, which can be used to funnel multiple lignin-based compounds into specific target products. Here, recent advances in lignin valorization using bacteria are critically reviewed, including lignin-degrading bacteria that are able to degrade lignin and use lignin-associated aromatics, various associated metabolic pathways, and application of bacterial cultures for lignin valorization. This review will provide insight into the recent breakthroughs and future trends of lignin valorization based on bacterial systems.
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