Removal and transformation of toxic resin acids by wood-inhabiting fungi

Reyes Sierra-Alvarez, Frank W. Claassen, Jose Dorado, Teris A. Van Beek, Gilles Lenon, Hans B.P.A. Wijnberg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Resin acids, major components in the lipophilic extractives of many coniferous pulpwood species, are known to display high acute toxicity against aquatic organisms and bacteria in wastewater treatment systems. In the present study we examined the ability of several white-rot fungal strains to degrade different resin acids. Results obtained in solid-state fermentation studies with Scots pine wood as well as in liquid culture experiments with resin model compounds show the high effectiveness of fungal treatment to reduce the content and/or the acute inhibitory effect (Microtox assay) displayed by toxic pitch constituents. Several (novel) metabolites of the fungal transformation of dehydroabietic acid were isolated and identified. These included polar intermediates, mainly hydroxylated-, dihydroxylated and hydroxyl-oxodehydroabietic acids.

Original languageEnglish (US)
Title of host publicationTAPPI Pulping/Process and Product Quality Conference
Pages1241-1245
Number of pages5
StatePublished - Dec 1 2000
Externally publishedYes
EventProceedings of the 2000 TAPPI Pulping/Process and Product Quality Process - Boston, MA, United States
Duration: Nov 5 2000Nov 8 2000

Publication series

NameTAPPI Pulping/Process and Product Quality Conference

Other

OtherProceedings of the 2000 TAPPI Pulping/Process and Product Quality Process
CountryUnited States
CityBoston, MA
Period11/5/0011/8/00

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

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  • Cite this

    Sierra-Alvarez, R., Claassen, F. W., Dorado, J., Van Beek, T. A., Lenon, G., & Wijnberg, H. B. P. A. (2000). Removal and transformation of toxic resin acids by wood-inhabiting fungi. In TAPPI Pulping/Process and Product Quality Conference (pp. 1241-1245). (TAPPI Pulping/Process and Product Quality Conference).