Results 221 to 230 of about 11,350 (245)

Levansucrase from Zymomonas mobilis

Biotechnology Letters, 1983
Levansucrase (EC 2.4.1.10) from Zymomonasmobilis was purified from protamine sulfate treated cell free extracts by DEAE-trisacryl ionexchange chromatography to produce a 330-fold partial purification with an 11 % yield. Levansucrase was inhibited completely by glucose (30mM) and ethanol (1.6 M). These concentrations of glucose and ethanol were exceeded
Lyness E.W., Doelle H.W.
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Transformation of Zymomonas mobilis by a hybrid plasmid

Plasmid, 1984
The transformation of Zymomonas mobilis by plasmid DNA was achieved using a modification of the CaCl2 method for Escherichia coli. The highest frequency of transformation obtained was 5 X 10(3) transformants/micrograms DNA. The success of the method depended upon the use of a plasmid which is a cointegrate between a Z. mobilis cryptic plasmid and an E.
G.M. Browne, Peter L. Rogers, M.L. Skotnicki, Amanda E. Goodman   +3 more
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Fructose metabolism in Zymomonas mobilis

Applied Microbiology and Biotechnology, 1986
In the metabolism of fructose by Zymomonas, the ethanol yield is decreased due to the formation of dihydroxyacetone, mannitol and glycerol. The reduction of fructose to mannitol by an NADPH-dependent mannitol dehydrogenase is apparently coupled to the oxidation of glucose-6-phosphate by glucose-6-phosphate dehydrogenase, which exhibits higher activity ...
Korhola, Matti, Viikari, Liisa
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Zymomonas mobilis: A bacterium for ethanol production

Biotechnology Advances, 1986
Biochimie generale et metabolisme. Ecologie et morphologie. Aspects cinetiques. Fermentation.
Jacques C. Baratti, J.D. Bu'lock
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Sorbitol production by Zymomonas mobilis

Applied Microbiology and Biotechnology, 1984
High resolution 13C Nuclear Magnetic Resonance (NMR) spectroscopy has been employed to determine the chemical composition of the unknown major products in a sucrose or fructose plus glucose fermentation to ethanol by the bacterium Zymmonas mobilis. When grown on these sugars Z.mobilis was found to produce significant amounts of sorbitol, up to 43 g·l-1
J. Grant Collins, Donald A. Leight, Rhonda G. Warr, Kevin D. Barrow, Peter L. Rogers   +4 more
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Byproducts from Zymomonas mobilis

1991
Z. mobilis is a microorganism that is not only an extremely efficient producer of alcohol, but also is capable of producing other metabolites in high concentrations under the correct culture conditions. The technology exists to manufacture fructose, sorbitol and gluconic acid at high yields and rates; all three are valuable chemicals.
M. R. Johns, Paul F. Greenfield, H. W. Doelle   +2 more
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Comparison of plasmids in strains of Zymomonas mobilis

Plasmid, 1983
Four strains of Zymomonas mobilis were examined for their resistance to antimicrobial agents and found to have similar resistance profiles. Plasmid DNA was extracted and purified by CsCl dye-buoyant density centrifugation; molecular weights were determined by agarose gel electrophoresis and electron microscopy. All four strains harbored a large plasmid
M.D. Yablonsky, H.W. Stokes, D.E. Eveleigh, E.L. Dally   +3 more
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Septation in Zymomonas mobilis

Canadian Journal of Microbiology, 1984
Freeze-etching and thin sectioning have been used to demonstrate that the gram-negative rod, Zymomonas mobilis ATCC 29191, divides by septation. During this division process the plasma membrane and peptidoglycan grow symmetrically inwards into the cytoplasm at the cell centre, leaving the outer membrane behind at the cell surface.
Robert J. Harris, G. R. Lawford, Terry J. Beveridge, Jared E. Fein, Hugh G. Lawford   +4 more
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Zymomonas mobilis mutants blocked in fructose utilization [PDF]

Applied Microbiology and Biotechnology, 1985
A mutant ofZymomonas mobilis deficient in the utilization of fructose for growth and ethanol formation was shown to lack fructokinase activity. When grown in media which contained glucose+fructose or sucrose, both the mutant and wild type produced sorbitol in amounts up to 60 g·l-1, depending on the initial concentrations of sugars.
Marc Scollar, Stephanie Bringer-Meyer, Hermann Sahm   +2 more
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Zymomonas Mobilis—Science and Industrial Application

Critical Reviews in Biotechnology, 1993
Zymomonas mobilis is undoubtedly one of the most unique bacterium within the microbial world. Known since 1912 under the names Termobacterium mobilis, Pseudomonas linderi, and Zymomonas mobilis, reviews on its uniqueness have been published in 1977 and 1988.
Doelle H.W., Kirk L., Crittenden R., Toh H., Doelle M.B.   +4 more
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