Reactivity of Trametes laccases with fatty and resin acids

Stina Karlsson, Bjarne Holmbom, Peter Spetz, Annikka Mustranta, Johanna Buchert

Research output: Contribution to journalArticleScientificpeer-review

45 Citations (Scopus)


Lipophilic extractives commonly referred to as wood pitch or wood resin can have a negative impact on paper machine runnability and product quality. The lipophilic extractives are composed mainly of fatty acids, resin acids, sterols, steryl esters and triglycerides. In this work, the suitability of laccases for the modification of fatty and resin acids was studied, using two model fractions. In the treatments, resin and fatty acid dispersions were treated with two different laccases, i.e. laccases from Trametes hirsuta and T. villosa. Different chromatographic methods were used to elucidate the effects of laccase treatments on the chemistry of the fatty and resin acids. Both laccases were able to modify the fatty and resin acids to some extent. In the case of fatty acids, a decrease in the amount of linoleic, oleic and pinolenic acids was observed, whereas the modification of resin acids resulted in a reduced amount of conjugated resin acids.
Original languageEnglish
Pages (from-to)317-320
JournalApplied Microbiology and Biotechnology
Issue number3
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed


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