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.
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| Format: | comunicación de congreso biblioteca |
| Language: | English |
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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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dig-irnas-es-10261-863452020-11-13T13:29:43Z Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system Gutiérrez Suárez, Ana Río Andrade, José Carlos del Martínez, Ángel T. Lipophilic extractives Pitch deposits Laccase-mediator systme Eucalypt pulp 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. This study was funded by the BIORENEW EU-project (NMP2-CT-2006-026456) and the Spanish MICINN (AGL-2008-00709). Beldem (Andenne, Belgium) is acknowledged for laccase supply. S. Molina and J. Rencoret are acknowledged for their contribution to this work. Peer reviewed 2013-11-12T11:00:10Z 2013-11-12T11:00:10Z 2011-05-08 comunicación de congreso http://purl.org/coar/resource_type/c_5794 5th International Colloquium on Eucalyptus Pulp, Porto Seguro, Brasil http://hdl.handle.net/10261/86345 en open |
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Lipophilic extractives Pitch deposits Laccase-mediator systme Eucalypt pulp Lipophilic extractives Pitch deposits Laccase-mediator systme Eucalypt pulp |
| spellingShingle |
Lipophilic extractives Pitch deposits Laccase-mediator systme Eucalypt pulp Lipophilic extractives Pitch deposits Laccase-mediator systme Eucalypt pulp Gutiérrez Suárez, Ana Río Andrade, José Carlos del Martínez, Ángel T. Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| description |
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. |
| format |
comunicación de congreso |
| topic_facet |
Lipophilic extractives Pitch deposits Laccase-mediator systme Eucalypt pulp |
| author |
Gutiérrez Suárez, Ana Río Andrade, José Carlos del Martínez, Ángel T. |
| author_facet |
Gutiérrez Suárez, Ana Río Andrade, José Carlos del Martínez, Ángel T. |
| author_sort |
Gutiérrez Suárez, Ana |
| title |
Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| title_short |
Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| title_full |
Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| title_fullStr |
Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| title_full_unstemmed |
Oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| title_sort |
oxidative modification of paper pulp lipophilic extractives by laccase-mediator system |
| publishDate |
2011-05-08 |
| url |
http://hdl.handle.net/10261/86345 |
| work_keys_str_mv |
AT gutierrezsuarezana oxidativemodificationofpaperpulplipophilicextractivesbylaccasemediatorsystem AT rioandradejosecarlosdel oxidativemodificationofpaperpulplipophilicextractivesbylaccasemediatorsystem AT martinezangelt oxidativemodificationofpaperpulplipophilicextractivesbylaccasemediatorsystem |
| _version_ |
1777664688193011712 |