Bioethanol production from mannitol by a newly isolated bacterium, Enterobacter sp. JMP3

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- 바이오정밀화학
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논문

Bioethanol production from mannitol by a newly isolated bacterium, Enterobacter sp. JMP3

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Wang, J.; Kim, Y.M.; Rhee, H.S.; Lee, M.W.; Park, J.M.

초록

In this study a new bacterium capable of growing on brown seaweed Laminaria japonica, Enterobacter sp. JMP3 was isolated from the gut of turban shell, Batillus cornutus. In anaerobic condition, it produced high yields of ethanol (1.15mol-EtOHmol-mannitol<SUP>-1</SUP>) as well as organic acids from mannitol, the major carbohydrate component of L. japonica. Based on carbon distribution and metabolic flux analysis, it was revealed that mannitol was more favorable than glucose for ethanol production due to their different redox states. This indicates that L. japonica is one of the promising feedstock for bioethanol production. Additionally, the mannitol dehydrogenation pathway in Enterobacter sp. JMP3 was examined and verified. Finally, an attempt was made to explore the possibility of controlling ethanol production by altering the redox potential via addition of external NADH in mannitol fermentation.

발행연도

2013

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

135

페이지

pp.199-206

DOI

10.1016/j.biortech.2012.10.012