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  • 1
    Electronic Resource
    Electronic Resource
    Large scale production of chromatophores from Rhodospirillum rubrum by light-fed-batch cultivation (1985)
    Springer
    Applied microbiology and biotechnology 22 (1985), S. 83-87 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary With the purpose of large scale production of chromatophores, the photosynthetic bacterium, Rhodospirillum rubrum was cultivated in a 50 l illuminated fermenter. The influence of light intensity on the production of cell mass and the production of intracellular membrane, from which the chromatophores can be prepared, were studied. A high constant specific rate of intracellular membrane production could be obtained by successively increasing the light intensity i.e., by light fed batch cultivation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00250024
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A Process for large-scale isolation of β-galactosidase from E. coli in an aqueous two-phase system (1983)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 25 (1983), S. 1789-1800 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A method suitable for large-scale isolation of β-galactosidase from a suspension of disintegrated E. coli cells has been developed. In an aqueous two-phase system consiting of PEG 6000 and potassium phosphate, all cell debris and the major part of the proteins and nucleic acids were partitioned to the denser salt phase. Seventy-five percent of the β-galactosidase was recovered in the lighter PEG phase, giving a purification ratio of about 12.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260250709
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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