| 1. |
- Taranova, L A, et al.
(författare)
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Comamonas testosteroni strain TI as a potential base for a microbial sensor detecting surfactants
- 2004
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Ingår i: Applied Biochemistry and Microbiology. - 0003-6838. ; 40:4, s. 404-408
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Tidskriftsartikel (refereegranskat)abstract
- Strain Comamonas testosteroni TI, capable of degrading the nonionic surfactant (NIS) nonylphenolethoxylate (OP-10), was used for constructing a pilot cellular biosensor. The lower NIS detection limit for the biosensor was 0.25 mg/l. We studied the substrate specificity of the biosensor with respect to a wide range of organic compounds: surfactants, polyaromatic compounds (PAC), carbohydrates, alcohols, etc. It was shown that the biosensor based on Comamonas testosteroni TI did not respond to glucose, which was an advantage over the formerly described biosensor based on Pseudomonas rathonis T. The amplitude of the sensor response remained stable for 10 days.
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| 2. |
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| 3. |
- Plekhanova, Yu V., et al.
(författare)
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Biosensor Monitoring of Microbial Treatment of Wastewater from Nonylphenol Polyethoxylates under Flow-through Conditions
- 2011
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Ingår i: Applied Biochemistry and Microbiology. - 0003-6838. ; 47:9, s. 846-851
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Tidskriftsartikel (refereegranskat)abstract
- Biodegradation of nonylphenol polyethoxylates (NPEO) has been studied in laboratory column bioreactors with a polyethylene carrier on which destructor bacteria of Pseudomonas surface-active compounds were immobilized. To monitor the efficiency of microbial treatment of model wastewater, a biosensor based on the oxygen Clark electrode and destructor bacteria of NPEO from bioreactors was designed. The designed biosensor allowed us to detect the content of polyethylene glycol monoalkyl phenyl ether on the basis of polymer distillate (OP-10), which is a commercial NPEO preparation, in samples in the range of 1-200 mg/l. Operation of the biosensor was stable within 7 days with the standard deviation of 1.35 mg/l for 20 consecutive measurements of OP-10 concentration, which was 20 mg/l (7%).
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