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  • Articles: DFG German National Licenses  (2)
  • 1975-1979  (2)
Source
  • Articles: DFG German National Licenses  (2)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Product inhibition in sludge digestion (1977)
    Springer
    Microbial ecology 4 (1977), S. 241-248 
    Details
    ISSN: 1432-184X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Hydrogen and acetate inhibit the microbial degradation of propionate and ethanol in digesting sludge. Propionate oxidation is more sensitive than ethanol oxidation to product activities. This difference can be explained on thermodynamic grounds. It is concluded that the limiting factors for complete anaerobic mineralization of biodegradable organic matter in digesting sludge are to be sought in the boundary conditions for the exergonic oxidation of propionate. The different ecological significances of hydrogen and acetate as inhibitory agents of fatty acid degradation in sludge digestion are discussed. Hydrogen partial pressure and alkalinity are recommended as parameters in monitoring sludge digestion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02015080
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Review: A comparative analysis of studies of enzyme changes with age, with comments on possible sources of error (1978)
    Springer
    Age 1 (1978), S. 60-67 
    Details
    ISSN: 1574-4647
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Studies on enzyme changes during aging from rodents, nematodes and tissue culture cells have been reviewed. In the rodent and tissue culture studies, conflicting results on aging of specific enzymes have been reported from several laboratories. These works have been analyzed, with the aim of stressing the different findings and analyzing possible reasons for the discrepancies. With regard to the nematode studies, the authors suggest that the examination of the concept of general failure of protein synthesis mechanisms as a basic cause of cellular senescence requires more rigorous methods than have been utilized in previous studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02439876
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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