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Influence of the initial composition of algal-bacterial microcosms on the degradation of salicylate in a fed-batch culture

Guieysse, Benoit LU ; Borde, X; Munoz, Raul LU ; Hatti-Kaul, Rajni LU ; Nugier-Chauvin, C; Patin, H and Mattiasson, Bo LU (2002) In Biotechnology Letters 24(7). p.531-538
Abstract
The influence of the initial composition of an algal-bacterial microcosm constituted of Chlorella sorokiniana and Ralstonia basilensis was tested for the fed-batch degradation of salicylate at 5 mM. Salicylate degradation was always limited by the O-2 generation rate, which was initially proportional to the algal density, but rapidly became limited by the availability of light once the algae started to grow. The decrease of the salicylate removal rate observed at high algal densities was likely caused by mutual shading within the algal population and the increase of O-2 consumption due to algal dark respiration. With repeated salicylate amendments, all systems converged towards the same characteristics, reaching an optimum rate of... (More)
The influence of the initial composition of an algal-bacterial microcosm constituted of Chlorella sorokiniana and Ralstonia basilensis was tested for the fed-batch degradation of salicylate at 5 mM. Salicylate degradation was always limited by the O-2 generation rate, which was initially proportional to the algal density, but rapidly became limited by the availability of light once the algae started to grow. The decrease of the salicylate removal rate observed at high algal densities was likely caused by mutual shading within the algal population and the increase of O-2 consumption due to algal dark respiration. With repeated salicylate amendments, all systems converged towards the same characteristics, reaching an optimum rate of salicylate degradation at 1 mmol l(-1) day. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ralstonia basilensis, inoculation, Chlorella sorokiniana, biodegradation, algal-bacterial microcosms, aromatic pollutants
in
Biotechnology Letters
volume
24
issue
7
pages
531 - 538
publisher
Springer
external identifiers
  • wos:000174634300006
  • scopus:0036220491
ISSN
1573-6776
DOI
10.1023/A:1014847616212
language
English
LU publication?
yes
id
791df0ee-3961-4b87-a5df-78f46ff41a3b (old id 341233)
date added to LUP
2007-08-22 08:36:39
date last changed
2017-10-01 04:37:34
@article{791df0ee-3961-4b87-a5df-78f46ff41a3b,
  abstract     = {The influence of the initial composition of an algal-bacterial microcosm constituted of Chlorella sorokiniana and Ralstonia basilensis was tested for the fed-batch degradation of salicylate at 5 mM. Salicylate degradation was always limited by the O-2 generation rate, which was initially proportional to the algal density, but rapidly became limited by the availability of light once the algae started to grow. The decrease of the salicylate removal rate observed at high algal densities was likely caused by mutual shading within the algal population and the increase of O-2 consumption due to algal dark respiration. With repeated salicylate amendments, all systems converged towards the same characteristics, reaching an optimum rate of salicylate degradation at 1 mmol l(-1) day.},
  author       = {Guieysse, Benoit and Borde, X and Munoz, Raul and Hatti-Kaul, Rajni and Nugier-Chauvin, C and Patin, H and Mattiasson, Bo},
  issn         = {1573-6776},
  keyword      = {Ralstonia basilensis,inoculation,Chlorella sorokiniana,biodegradation,algal-bacterial microcosms,aromatic pollutants},
  language     = {eng},
  number       = {7},
  pages        = {531--538},
  publisher    = {Springer},
  series       = {Biotechnology Letters},
  title        = {Influence of the initial composition of algal-bacterial microcosms on the degradation of salicylate in a fed-batch culture},
  url          = {http://dx.doi.org/10.1023/A:1014847616212},
  volume       = {24},
  year         = {2002},
}