Chemical assesment of lignin biodegradation some qualitative and quantitative aspects |
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Authors: | Bernard Monties |
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Institution: | Laboratoire de Chimie Biologique (INRA), 78850 Institut National Agronornique Paris-Grignon (CBAI) Centre de Grignon, 78850 Thivernal-Grignon, France |
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Abstract: | Abstract: The molecular structure of lignins (occurrence of condensed and non-condensed monomeric units and associations with phenolic acids by ether and ester linkages) have been reviewed in this paper. Critical aspects of chemical determination of lignin content and monomeric composition have been discussed in the case of nitrobenzene oxidation and thioacidolysis. As an example of assessment of lignin biodegradation by peroxidases, lignin peroxidase and horseradish peroxidase have been compared, indicating that horseradish peroxidase is a ligninolytic enzyme, confirming the influence of the physical state of lignins on their biodegradability and the general difficulty to characterize biomacromolecules. |
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Keywords: | Molecular structure of lignin Condensed and non-condensed units Ester and ether linked phenolic acids Peroxidasic degradation of lignin Peroxidase Horseradish peroxidase Phanerochaete chrysosporium |
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