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  • 1
    Electronic Resource
    Electronic Resource
    Influence of exopolymers produced by bacterial cells on hydrophobicity of substrate surface (1997)
    Springer
    Biotechnology techniques 11 (1997), S. 837-840 
    Details
    ISSN: 1573-6784
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Exopolymers produced during copper bioleaching from copper sulphides could modify the surface of substrata. The substrate surface was more hydrophobic for exopolymer solution than for water or control sample and the changes depended on the concentration of exopolymer solution. When the concentration of exopolymer was close to that in the environment, the changes were more significant. It appears that the structure of exopolymer is important and dependent on the degree of molecule hydration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018437627618
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bacterial and chemical leaching pattern on copper ores of sandstone and limestone type (1993)
    Springer
    World journal of microbiology and biotechnology 9 (1993), S. 328-331 
    Details
    ISSN: 1573-0972
    Keywords: Biological film ; leaching pattern ; Thiobacillus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Thin polished sections of copper sulphide ore were placed as an energy source in stationary cultures of wild strains and Thiobacillus neapolitanus at pH 7.5. Scanning electron microscopy revealed characteristic leaching patterns that depended on the type of leaching process and time of bioleaching. In some cases, a biological film on the ore surface was observed. Close contact between bacterial cells and ore seems necessary for leaching in some cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00383073
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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