## Abstract It would appear from these data that indeed asphalt degradation by bacteria does occur and can be rather rapid under laboratory conditions. The types of bacteria capable of degrading asphalt are diverse. The effects of temperature, pH, and oxygen tension on asphalt degradation are impor
Microbial degradation of alkenylbenzenes
โ Scribed by K. E. O'Connor; A. D. W. Dobson
- Book ID
- 104739055
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 590 KB
- Volume
- 12
- Category
- Article
- ISSN
- 1573-0972
No coin nor oath required. For personal study only.
โฆ Synopsis
Alkenylbenzenes are produced in large quantities by the petrochemical industry. The simplest of these alkenylbenzenes, styrene, is in widespread use in the polymer-processing industry and is thus found in many industrial effluents. Airborne gaseous emissions of styrene are particular problems due to the potential toxicity and carcinogenicity of the compound. The catabolic pathways involved in the degradation of styrene have been well characterised. With an increased knowledge of the adaptative response which microorganisms exhibit when exposed to higher styrene concentrations, together with an understanding of the genetic regulation of the catabolic pathways which operate in these microbial strains, it is likely that these organisms could be exploited in areas such as biotransformations, biocatalysis and bioremediation.
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From the soil, different microorganisms were isolated after enrichment growth on the following medium: NH,NO, O.lyo, K,HPO, 0.025%, MgSO, .7H,O 0.025%, FeSO, a 7 H,O 0.0001 yo, cholesterol 0.1 yo, distilled water 100 ml. 10 g of soil were added to 190 ml of this sterilized medium. The cholesterol wa