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| − | halogenated Dioxin / dioxin - like compounds | + | halogenated Dioxin / dioxin - like compounds are a sort of chemical waste that are formed during combustional processes or industrial processes such as paper pulp bleaching.The basic structure comprise of 2 benzene rings joined at their para carbons by 2 oxygen atoms. |
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| − | [[file : Dioxins.jpg |thumb | 200 px ]] | + | poly-cholorinated dibenzo- p - dioxin(PCDD) , polychlorinated dibienzofurans(PCDF), polychorinated diphenyl ethers(PCDE) |
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| + | [[file : Dioxins.jpg |thumb | 200 px | Dioxins ]] | ||
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| + | == Mechanism == | ||
| + | Enzymes | ||
| + | *[[Manganese peroxidase]] | ||
| + | *[[Lignin peroxidase]] | ||
| + | |||
| + | [[File:Dioxin mechanism.gif]] | ||
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| + | *ex )''P.chrysosporium'' degrades 2,7-Dichlorodibenzo-p-Dioxin(DCDD) | ||
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| + | [[file : DCDD_pathway.png | 600 px ]] | ||
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| + | (I)2,7-dichlorodibenzo-p-dioxin | ||
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| + | (II)1-chloro-3,4-dihydroxybenzene | ||
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| + | (III)1,2,4-trihydroxybenzene | ||
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| + | (IV)2-methoxy-1,4-dihydroxybenzene | ||
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| + | (V)4-chloro-1,2-benzoquinone | ||
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| + | (VI)1-chloro-3,4-dimethoxybenzene (VI) | ||
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| + | (VII)2-methoxy-1,4-benzoquinone | ||
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| + | (VIII)2-hydroxy-1,4-benzoquinone | ||
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| + | 4-hydroxy-1,2-benzoquinone | ||
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| + | ==reference == | ||
| + | |||
| + | Reiner, Eric J.; Clement, Ray E.; Okey, Allan B.; Marvin, Chris H. | ||
| + | Journal: Analytical and Bioanalytical Chemistry Vol. 386 Issue 4 | ||
| + | |||
| + | Bioremediation of Dioxin-Contaminated Soil by Fungi Screened from Nature | ||
| + | Sanro Tachibana, Yukinori Kiyota and Michifusa Koga | ||
| + | |||
| + | Degradation of 2,7-Dichlorodibenzo-p-Dioxin by the Lignin- | ||
| + | Degrading Basidiomycete Phanerochaete chrysosporium | ||
| + | KHADAR VALLI, HIROYUKI WARIISHI, AND MICHAEL H. GOLD | ||
Latest revision as of 17:46, 7 January 2013
halogenated Dioxin / dioxin - like compounds are a sort of chemical waste that are formed during combustional processes or industrial processes such as paper pulp bleaching.The basic structure comprise of 2 benzene rings joined at their para carbons by 2 oxygen atoms.
poly-cholorinated dibenzo- p - dioxin(PCDD) , polychlorinated dibienzofurans(PCDF), polychorinated diphenyl ethers(PCDE)
[edit] Mechanism
Enzymes
- ex )P.chrysosporium degrades 2,7-Dichlorodibenzo-p-Dioxin(DCDD)
(I)2,7-dichlorodibenzo-p-dioxin
(II)1-chloro-3,4-dihydroxybenzene
(III)1,2,4-trihydroxybenzene
(IV)2-methoxy-1,4-dihydroxybenzene
(V)4-chloro-1,2-benzoquinone
(VI)1-chloro-3,4-dimethoxybenzene (VI)
(VII)2-methoxy-1,4-benzoquinone
(VIII)2-hydroxy-1,4-benzoquinone
4-hydroxy-1,2-benzoquinone
[edit] reference
Reiner, Eric J.; Clement, Ray E.; Okey, Allan B.; Marvin, Chris H. Journal: Analytical and Bioanalytical Chemistry Vol. 386 Issue 4
Bioremediation of Dioxin-Contaminated Soil by Fungi Screened from Nature Sanro Tachibana, Yukinori Kiyota and Michifusa Koga
Degradation of 2,7-Dichlorodibenzo-p-Dioxin by the Lignin- Degrading Basidiomycete Phanerochaete chrysosporium KHADAR VALLI, HIROYUKI WARIISHI, AND MICHAEL H. GOLD