期刊
CURRENT OPINION IN BIOTECHNOLOGY
卷 73, 期 -, 页码 240-245出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.copbio.2021.08.017
关键词
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资金
- National Research Foundation Singapore through a CRP project [R-279-000-512-281]
- Singapore Millennium Foundation [R-279-000-516-592]
This review highlights the promising waste-processing technologies for providing C2 feedstocks compatible with microbial fermentation and analyzes recent metabolic engineering works to improve the utilization efficiency of acetate, ethanol, or ethylene glycol.
Engineering microbes to produce value-added chemicals from C6/C5 sugars sometimes requires long biosynthetic pathways, which causes carbon loss due to involving multiple metabolic branch nodes, leading to a lower product yield. Using C2 feedstocks derived from gaseous, cellulosic, and plastic wastes could establish shorter biosynthetic pathways to produce some target chemicals, for example, acetyl-CoAderived natural products. Utilizing these waste-derived feedstocks would also contribute to reducing the carbon footprint of the chemical industry. In this review, we highlighted the promising waste-processing technologies that could provide C2 feedstocks that are compatible with microbial fermentation. We also analyzed the recent metabolic engineering works in which the microorganisms/fermentation processes were modified/optimized to utilize acetate, ethanol, or ethylene glycol more efficiently.
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