MIKROBIOLOGICZNY ROZKŁAD ZWIĄZKÓW AROMATYCZNYCH
W WARUNKACH ANOKSJI
Urszula Guzik1*, Danuta Wojcieszyńska1, Katarzyna Hupert-Kocurek1
1Uniwersytet Śląski, Wydział Biologii i Ochrony Środowiska, Katedra Biochemii ul. Jagiellońska 28, 40-032 Katowice, tel. 32 2009 576,
email: biochem@us.edu.pl
Wpłynęło w lipcu 2010 r.
1. Wprowadzenie. 2. Akceptory elektronów w beztlenowej degradacji arenów. 3. Mechanizmy degradacji związków aromatycznych w warunkach anoksji. 4. Podsumowanie
Microbiological degradation of aromatic compounds in anoxic conditions
Abstract: Microbiological degradation of aromatic compounds occurs via aerobic or anaerobic pathways. In anaerobic environments, arenes such as benzene, toluene, xylene, naphthalene, anthraquinone, phenols and its derivatives are degraded. In anoxic conditions ions of metals, sulphate, nitrate or simple organic compounds are final electron acceptors in arene degradation. Key intermediate in these processes is benzoyl-CoA, which can be transformed to acetyl-CoA. The obtained acetyl-CoA is included in central metabolism. Degradation of aromatic compounds is also observed in methanogenic conditions. The products fermentation of aromatic compounds are acetate, butyrate, carbon dioxide and hydrogen, which can be degraded in syntrophic bacterial consortium.
1. Introduction. 2. Electron acceptors in anoxic degradation of arenes. 3. Mechanisms of degradation of aromatic compounds in anoxic conditions. 4. Summary
Słowa kluczowe: enzymy, immobilizacja, mikroorganizmy, związki aromatyczne
Key words: enzymes, immobilisation, microorganisms, aromatic compounds
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