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Applied Microbiology and Biotechnology

, Volume 43, Issue 5, pp 914–919 | Cite as

The influence of physicochemical effects on the microbial degradation of chlorinated biphenyls

  • J. Havel
  • W. Reineke
Original Paper
  • 24 Downloads

Abstract

The influence of different forms of substrate administration (either through the vapour phase or the liquid phase) on growth of two bacterial strains on biphenyl, 2-chlorobiphenyl, and 3,5-dichlorobiphenyl has been investigated. During growth with all three compounds, the availability of the substrate for the cells turned out to be the growth-limiting factor, even in liquid culture with excess substrate supplied to the medium. Growth on biphenyl and 2-chlorobiphenyl could be greatly enhanced if the substrate was distributed on a folded filter providing a large surface, which was placed in the vapour phase of the culture flask. This was not possible in the case of 3,5-dichlorobiphenyl. Here growth accelerated after accumulation of a yellowmeta cleavage product. Through measurement of the surface tension it was shown that this yellow compound possessed detergent-like activities, increasing the amount of 3,5-dichlorobiphenyl dissolved in the medium.

Keywords

Biphenyl Vapour Phase Mineral Medium Substrate Supply Appl Environ 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • J. Havel
    • 1
  • W. Reineke
    • 1
  1. 1.Chemische MikrobiologieBergische Universität — Gesamthochschule WuppertalWuppertalGermany

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