Biodegradation lignin

T. Kent Kirk, T. Higuchi, H. Chang, Lignin Biodegradation ... 

Source Reproduced from Lignin Biodegradation Microbiology, Chemistry and Potential Applications , eds., T.K. Kirk et al, CRC Press, Florida, 1980, Vol. 1, p. 6). 

Lignin Biodegradation Microbiology, Chemistry and Potential Applications , Volume 1, J. Kent Kirk, T. Higuchi and H.M. Chang CRC Press, Boca Raton, USA, 1980, ISBN 0-8493-5459-5. 

Lignin Biodegradation Microbiology, Chemistry, and Potential Applications Kirk, K. T. Higuchi, T. Chang, H., Eds. CRC Press Boca Raton, FL, 1980 Vols. 1 and 2, 488 pp. 

Crawford, R. L. Lignin Biodegradation and Transformation Wiley New York, 1981. 

Next to 3-0-4 lignin substructure model compounds, 3-1 lignin substructure model compounds have been often used for lignin biodegradation studies. This type of compound was found to be degraded... 

The foregoing working hypothesis has been adapted to provide a rationale that might account for lignin biodegradation by P. chrysosporium (Figure 6). Single-electron... 

Figure 6. Plausible pathway for lignin biodegradation by P. chrysosporium exemplified for the B-O-4 interunit linkage. Adapted and redrawn from reference 34.

Reservations about Lignin Peroxidase Participation in Lignin Biodegradation... 

Invoking lignin peroxidase participation under such conditions would require that the enzyme be either intracellularly confined (34) or membrane bound. However, when extracellular lignin peroxidase levels are completely suppressed by 40 ppm Mn concentrations, the rate of lignin biodegradation by P. chrysosporium remains appreciable (50), being attenuated onfy 7.6-fold from that prevailing under partially... 

Viewed as a whole, then, the evidence presently available does not support the contention that lignin peroxidase is a key enzyme for the series of transformations bringing about lignin biodegradation in nature. Yet its presence can actually accelerate the degradation of lignins in vivo (34). Consequently the formulation of some provisional ideas about its possible functions would certainly be desirable. 

Table L Correlation of Manganese Regulated Lignin Peroxidase and Mn -dependent Peroxidase Activities with Lignin Biodegradation for Phanerochaete chrysosporium and Lentinula edodes ...

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