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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제19권 제7호
- 발행연도
- 2009.1
- 수록면
- 666 - 674 (9page)
이용수
초록· 키워드
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An electrochemical bioreactor (ECB) composed of a cathode
compartment and an air anode was used in this study to
characterize the ethanol fermentation of Zymomonas
mobilis. The cathode and air anode were constructed of
modified graphite felt with neutral red (NR) and a
modified porous carbon plate with cellulose acetate and
porous ceramic membrane, respectively. The air anode
operates as a catalyst to generate protons and electrons
from water. The growth and ethanol production of Z.
mobilis were 50% higher in the ECB than were observed
under anoxic nitrogen conditions. Ethanol production by
growing cells and the crude enzyme of Z. mobilis were
significantly lower under aerobic conditions than under
other conditions. The growing cells and crude enzyme of
Z. mobilis did not catalyze ethanol production from pyruvate
and acetaldehyde. The membrane fraction of crude enzyme
catalyzed ethanol production from glucose, but the soluble
fraction did not. NADH was oxidized to NAD+ in
association with H2O2 reduction, via the catalysis of crude
enzyme. Our results suggested that NADH/NAD+ balance
may be a critical factor for ethanol production from
glucose in the metabolism of Z. mobilis, and that the
metabolic activity of both growing cells and crude enzyme
for ethanol fermentation may be induced in the presence
of glucose.
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참고문헌 (22)
참고문헌 신청
Amin, G. / 1982 / Comparative study of ethanol production by immobilized-cell systems using Zymomonas mobilis or Saccharomyces bayanus / Eur. J. Appl. Microbiol. Biotechnol 1
An, H. J. / 1991 / Gel electrophoretic analysis of Zymomonas mobilis glycolytic and fermentative enzymes: Identification of alcohol dehydrogenase II as a stress protein / J.
Bringer, S. / 1984 / Effect of oxygen on the metabolism of Zymomonas mobilis / Arch. Microbiol 139 : 376 ~ 381
Bringer, S. / 1984 / Ethanol production by Zymomonas mobilis and its application on an industrial scale / Biotehnol. Bioeng. Symp 14 : 311 ~ 319
Bringer-Meyer, S. / 1988 / Metabolic shifts in Zymomonas mobilis in response to growth conditions / FEMS Microbiol. Rev 54 : 131 ~ 142
An, H. J. / 1991 / Gel electrophoretic analysis of Zymomonas mobilis glycolytic and fermentative enzymes: Identification of alcohol dehydrogenase II as a stress protein / J.
Bringer, S. / 1984 / Effect of oxygen on the metabolism of Zymomonas mobilis / Arch. Microbiol 139 : 376 ~ 381
Bringer, S. / 1984 / Ethanol production by Zymomonas mobilis and its application on an industrial scale / Biotehnol. Bioeng. Symp 14 : 311 ~ 319
Bringer-Meyer, S. / 1988 / Metabolic shifts in Zymomonas mobilis in response to growth conditions / FEMS Microbiol. Rev 54 : 131 ~ 142
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