Oxidative degradation of aromatic hydrocarbons

Gibson DT, JR Koch, CL Schuld, RE Kallio (1968) Oxidative degradation of aromatic hydrocarbons by microorganisms. II. Metabolism of halogenated aromatic hydrocarbons. Biochemistry 7 3795-3802. 

Gibson, D. T., Koch, J.R. Kallio, R. E. (1968). Oxidative degradation of aromatic hydrocarbons by microorganisms. I. Enzymatic formation of catechol from benzene. Biochemistry, 7, 2653-61. 

Gibson, D. T., J. R. Koch, and R. E. Kallio Oxidative Degradation of Aromatic Hydrocarbons by Microorganisms. I. Enzymatic Formation of Catechol from Benzene. Biochem. 7, 2653 (1968). 

In general the updated mechanism, MCMv3.1, shows improved ability to simulate some of the observations from the EXACT EUPHORE datasets and represents our current understanding of aromatic degradation. However, significant discrepancies remain concerning, in particular, ozone formation potential and oxidative capacity of aromatic hydrocarbon systems ... 

Hydroxylated aromatics are simong the intermediates in the deep degradation of aromatic hydrocarbons. In addition, they form a class of pollutants of their own. Phenoxyl radicals are important intermediates in their oxidative oxidation. Some aspects of their degradation have been discussed from an environmental point of view [37-40],... 

Mycobacteria can oxidize short-chain alkenes (DeBont et al. 1980), and organisms known under the invalid specific name Mycobacterium paraffini-cum (Wayne et al. 1991) are able to degrade a number of alkanes. It has also been shown that strains of mycobacteria grown with propane are able to oxidize the apparently unrelated substrate trichloroethylene (Wackett et al. 1989). There has also been a revival of interest in the role of mycobacteria in the degradation of aromatic polycyclic hydrocarbons including naphthalene (Kelley et al. 1990), phenanthrene (Guerin and Jones 1988), and pyrene... 

Monooxygenase systems are sometimes involved in the degradation of toluene (Section 6.2.1) and plausibly in the transformation of aromatic compounds to arene oxide intermediates (Chapter 4, Sections 4.2.3 and 4.4.1.1, and in Sections 6.2.2 and 6.3.1.2). There is a complex relation between toluene monooxygenase activity and the degradation of chlorinated hydrocarbons. 

The self-ignition temperature of PVF film is 390°C. The limiting oxygen iadex (LOI) for PVF is 22.6% (98), which can be raised to 30% ia antimony oxide-modified film (99). Hydrogen fluoride and a mixture of aromatic and aUphatic hydrocarbons (100) are generated from the thermal degradation of PVF. Toxicity studies, ie, survival and time to iacapacitation, of polymers, ceUulosics (101,102), and airplane iaterior materials (103) expose... 

---