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| − | PAHs | + | Polycyclic aromatic hydrocarbons (PAHs), also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH. PAHs occur in oil, coal, and tar deposits, and are produced as byproducts of fuel burning (whether fossil fuel or biomass). As a pollutant, they are of concern because some compounds have been identified as carcinogenic, mutagenic, and teratogenic. PAHs are also found in cooked foods. Studies have shown that high levels of PAHs are found, for example, in meat cooked at high temperatures such as grilling or barbecuing, and in smoked fish. They are also found in the interstellar medium, in comets, and in meteorites and are a candidate molecule to act as a basis for the earliest forms of life. |
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</gallery> | </gallery> | ||
| − | + | *PAHs 의 구조 | |
wikipedia:http://en.wikipedia.org/wiki/Polycyclic_aromatic_hydrocarbon | wikipedia:http://en.wikipedia.org/wiki/Polycyclic_aromatic_hydrocarbon | ||
| − | = | + | = Metabolism = |
[[file:PAHs.png]] | [[file:PAHs.png]] | ||
| − | == Non - | + | == Non - ligninolytic fungi == |
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| − | === | + | |
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|- | |- | ||
|Class || Genus | |Class || Genus | ||
|- | |- | ||
| − | |Zygomycetes||cunninghamella blakesleeana , M verrucosa | + | |rowspan="3"|Zygomycetes||cunninghamella blakesleeana , M verrucosa |
|- | |- | ||
| − | + | |C.ehinulata ,Mucor racemosus | |
|- | |- | ||
| − | + | |C.elgans 외 3 Genus | |
|- | |- | ||
|Ascomycetes || Cryphonectria parasitica ,Neurospora crassa 외 4 Genus | |Ascomycetes || Cryphonectria parasitica ,Neurospora crassa 외 4 Genus | ||
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|Hyphomycetes || Aspergillus niger , Monosporium olivaceum 외 30 Genus | |Hyphomycetes || Aspergillus niger , Monosporium olivaceum 외 30 Genus | ||
|- | |- | ||
| − | |Coelomycetes Cinnobolus cesatii , C,sporulosum 외 3 Genus | + | |Coelomycetes || Cinnobolus cesatii , C,sporulosum 외 3 Genus |
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| − | + | Reference | |
| + | Potential of Penicillium Species in the Bioremediation | ||
| − | * | + | ==Ligninolytic fungi(nutrient-limited) == |
| − | ::*[[ | + | |
| − | ::*[[ | + | Lignolytic fungi degrade PAHs trough non specific radical oxidation by Extracellular lignolytic enzymes. |
| − | ::*[[ | + | * Extracellular lignolytic enzyme |
| − | ::*[[ | + | ::*[[Lignin peroxidase]] |
| + | ::*[[Manganese peroxidase | Maganese-dependent peroxidase]] | ||
| + | ::*[[Manganese-independent peroxidase]] | ||
| + | ::*[[Laccase]] | ||
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[[file:Ligninolytic fungi.png| 600px]] | [[file:Ligninolytic fungi.png| 600px]] | ||
| − | + | reference :Fungal metabolism of polycyclic aromatic hydrocarbons: past, | |
present and future applications in bioremediation | present and future applications in bioremediation | ||
| − | === | + | === Known species === |
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| − | + | ||
| − | + | * ''Phanerochaete chrysosprium'' | |
| − | * Trametes versicolor | + | * ''Trametes versicolor'' |
| − | ::[[KUC Trametes versicolor | | + | ::[[KUC Trametes versicolor | Trametes versicolor ]] |
| − | *Pleurotus ostreatus | + | *''Pleurotus ostreatus'' |
| − | ::[[KUC Pleurotus ostreatus | | + | ::[[KUC Pleurotus ostreatus | Pleurotus ostreatus ]] |
Latest revision as of 16:31, 8 April 2013
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Polycyclic aromatic hydrocarbons (PAHs), also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH. PAHs occur in oil, coal, and tar deposits, and are produced as byproducts of fuel burning (whether fossil fuel or biomass). As a pollutant, they are of concern because some compounds have been identified as carcinogenic, mutagenic, and teratogenic. PAHs are also found in cooked foods. Studies have shown that high levels of PAHs are found, for example, in meat cooked at high temperatures such as grilling or barbecuing, and in smoked fish. They are also found in the interstellar medium, in comets, and in meteorites and are a candidate molecule to act as a basis for the earliest forms of life.
Benzo-a-pyrene
naphthalene
- PAHs 의 구조
wikipedia:http://en.wikipedia.org/wiki/Polycyclic_aromatic_hydrocarbon
[edit] Metabolism
[edit] Non - ligninolytic fungi
| Class | Genus |
| Zygomycetes | cunninghamella blakesleeana , M verrucosa |
| C.ehinulata ,Mucor racemosus | |
| C.elgans 외 3 Genus | |
| Ascomycetes | Cryphonectria parasitica ,Neurospora crassa 외 4 Genus |
| Blastomycetes | Candida krusei , Rhodotorula gutinis 외 5 Genus |
| Hyphomycetes | Aspergillus niger , Monosporium olivaceum 외 30 Genus |
| Coelomycetes | Cinnobolus cesatii , C,sporulosum 외 3 Genus |
Reference Potential of Penicillium Species in the Bioremediation
[edit] Ligninolytic fungi(nutrient-limited)
Lignolytic fungi degrade PAHs trough non specific radical oxidation by Extracellular lignolytic enzymes.
- Extracellular lignolytic enzyme
Oxidation of polycyclic aromatic hydrocarbons by Ligninolytic fungi
reference :Fungal metabolism of polycyclic aromatic hydrocarbons: past, present and future applications in bioremediation
[edit] Known species
- Phanerochaete chrysosprium
- Trametes versicolor
- Pleurotus ostreatus