期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 71, 期 9, 页码 2130-2135出版社
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.60699
关键词
cadaverine fermentation; Corynebacterium glutamicum; L-lysine decarboxylase
Cadaverine, the expected raw material of polyamides, is produced by decarboxylation Of L-lysine. If we could produce cadaverine from the cheapest sugar, and as a renewable resource, it would be an effective solution against global warming, but there has been no attempt to produce cadaverine from glucose by fermentation. We focused on Corynebacterium glutamicum, whose L-lysine fermentation ability is superior, and constructed a metabolically engineered C glutamicum in which the L-homoserine dehydrogenase gene (hom) was replaced by the L-lysine decarboxylase gene (cadA) of Escherichia coli. In this recombinant strain, cadaverine was produced at a concentration of 2.6g/l, equivalent to up to 9.1% (molecular yield) of the glucose transformed into cadaverine in neutralizing cultivation. This is the first report of cadaverine fermentation by C. glutamicum.
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