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  • 1
    Electronic Resource
    Electronic Resource
    Experiments with lysis of living cells of Eremothecium ashbyii and of Methanomonas by microbial enzymes (1970)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 12 (1970), S. 167-178 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The possibility to use microorganisms as human food is limited by several factors. The intact cell is resistant to digestion, the cell wall is unbalanced in essential amino acids, and the nucleic acids are said to be harmful. For using single cell protein as food it may thus be necessary to disrupt the cell wall and separate the protein from nucleic acid. This paper is concerned with the production and properties of extracellular enzymes able to lyse cell walls of microorganisms. Soil bacteria and actinomycetes have been cultivated and lytic enzymes from these organisms have been used to lyse living cells of the yeast like organism E. ashbyii. Efforts were also made to use these enzymes for lysing cell of a Methanomonas sp.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260120204
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Methane as a carbon substrate for the production of microbial cellsPaper presented at the 2nd International Congress for Food Science and Technology, Warsaw, August 1966. (1967)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 9 (1967), S. 499-514 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The cultivation of aerobic, methane-utilizing, microbial cells by submerged culture techniques, in an entirely mineral salts medium, with a view to their use as an edible protein source is discussed. Particular emphasis is placed on the potentially explosive nature of gaseous mixtures containing methane and oxygen. The experiments described investigate if fully safe operation at all times, by oxygen concentration control, is possible in agitated and sparged batch fermentors. Appreciable wastage of methane is prevented by gaseous-phase recirculation. It is concluded that fully safe operation is possible, cultures being able to grow exponentially without substrate limitation by the gaseous-phase nutrients.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260090406
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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