Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system
Recently, we have shown the effectiveness of the laccase-mediator system in removing lipophilic extractives from pulp regardless the pulping process and the raw material used. This paper summarizes our research findings on the chemistry of the reactions of the main lipophilic extractives present in paper pulps with the laccase-mediator system. The results attained in reactions of several model lipids - including alkanes, fatty alcohols, fatty acids, resin acids, free sterols, sterol esters and triglycerides - with a fungal laccase in the presence of HBT as mediator, are discussed in the context of enzymatic control of pitch deposits, to explain the removal of complex lipid mixtures during laccase-mediator treatment of different pulp types, including eucalypt pulp.
| Main Authors: | , , |
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| Format: | comunicación de congreso biblioteca |
| Language: | English |
| Published: |
2011-05-08
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| Subjects: | Lipophilic extractives, Pitch deposits, Laccase-mediator systme, Eucalypt pulp, |
| Online Access: | http://hdl.handle.net/10261/86345 |
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