Regulation of Coal Polymer Degradation by Fungi

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Previous studies in our laboratory used a spectrophotometric assay to study biomimetic solubilization of leonardite by sodium oxalate. It was found, however, that in extended incubations of several days, this assay resulted in overestimation of the percent of leonardite that was solubilized. This problem did not appear to be significant for short term incubations (ie., up to -24 h) and was circumvented in long term incubations by using a gravimetric assay to assay for solubilization. In other studies during this reporting period we examined oxalate production by P. chrysosporium and T. versicolor grown in Fahreus-Reinhammar medium in agitated pelleted culture. ... continued below

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11 p.

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Irvin, R.L. & Bumpus, J.A. April 30, 1997.

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  • Irvin, R.L. Notre Dame Univ., IN (United States). Dept. of Civil Engineering and Geological Sciences
  • Bumpus, J.A. University of Northern Iowa, Cedar Falls, IA (United States). Dept. of Chemistry

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Description

Previous studies in our laboratory used a spectrophotometric assay to study biomimetic solubilization of leonardite by sodium oxalate. It was found, however, that in extended incubations of several days, this assay resulted in overestimation of the percent of leonardite that was solubilized. This problem did not appear to be significant for short term incubations (ie., up to -24 h) and was circumvented in long term incubations by using a gravimetric assay to assay for solubilization. In other studies during this reporting period we examined oxalate production by P. chrysosporium and T. versicolor grown in Fahreus-Reinhammar medium in agitated pelleted culture. It was found that in this system concentrations of oxalate are produced that are much lower than those that would be optimal for leonardite solubilization.

Physical Description

11 p.

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OSTI as DE97054094

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  • Other Information: PBD: 30 Apr 1997

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  • Other: DE97054094
  • Report No.: DOE/PC/94209--T11
  • Grant Number: FG22-94PC94209
  • DOI: 10.2172/645997 | External Link
  • Office of Scientific & Technical Information Report Number: 645997
  • Archival Resource Key: ark:/67531/metadc694059

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  • April 30, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 11, 2015, 12:38 p.m.

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Irvin, R.L. & Bumpus, J.A. Regulation of Coal Polymer Degradation by Fungi, report, April 30, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc694059/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.