TY  - JOUR
A1  - Strotmann, Uwe
A1  - Gendig, Cornelia
A1  - Pastor Flores, Daniel
A1  - Konrad, Odorico
T1  - Bacterial Toxicity Testing: Modification and Evaluation of the Luminescent Bacteria Test and the Respiration Inhibition Test
T2  - Processes
N2  - The activated sludge respiration inhibition test and the luminescent bacteria test with Vibrio fischeri are important bacterial test systems for evaluation of the toxicity of chemical compounds. These test systems were further optimized to result in better handling, reliability and sensitivity. Concerning the Vibrio fischeri test, media components such as yeast extract and bivalent cation concentrations like Ca2+ and Mg2+ were optimized. The cultivation, storage conditions and reactivation process of the stored bacteria were also improved, which enabled simpler handling and led to good reproducibility. Additionally, the respiration inhibition test with a prolonged incubation time was further analyzed using different chlorinated phenols as reference compounds. It could be stated that a longer incubation period significantly improved the sensitivity of the test system.
KW  - bacterial toxicity
KW  - chlorinated phenols
KW  - Cr(VI) and Zn(II) cations
KW  - luminescent bacteria
KW  - respiration inhibition
KW  - activated sludge
KW  - long-term toxicity
Y1  - 2020
UR  - https://whge.opus.hbz-nrw.de/frontdoor/index/index/docId/3823
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:1010-opus4-38236
SN  - 2227-9717
VL  - 8
IS  - 11
SP  - 1349
ER  -