Biomechanical pulping of softwood with enzymes and white-rot fungus Physisporinus rivulosus

Pekka Maijala, M Kleen, O Westin, K Poppius-Levlin, K Herranen, J. H Lehto, P Reponen, O Mäentausta, Aila Mettälä, Annele Hatakka

    Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

    Kuvaus

    Manufacturing of mechanical pulp is a very energy-consuming process. Application of enzymes to wood chips is an attractive alternative to decrease energy demand in the refining process and to introduce novel functional properties on fibers. A variety of enzymes were applied to plug screw compressed chips in order to improve enzyme access onto wood fibers. Consumption of refining energy was examined with a laboratory low-intensity refiner after 6-h enzyme treatments with manganese peroxidase (MnP), laccase-mediator system, pectinase, or a cellulase mixture. The results were compared to biopulping with the white-rot fungus Physisporinus rivulosus. Specific energy consumption resembling the first-stage refining was measured, and chemical modifications on the fibers were evaluated. The specific energy consumption in the refining of Scots pine wood chips treated with MnP decreased about 11% when compared to the untreated reference chips, and in the refining of Norway spruce somewhat less, 6%. Fungal pre-treatment resulted in similar energy savings on spruce as MnP treatment did. Hydrolytic enzyme and MnP treatments on pine resulted in similar energy savings on average, though the hydrolytic enzyme treatments at their best reached to about 15% energy savings. Polyelectrolyte titration indicated increased surface charge in the case of MnP treated pine pulps, which were refined to low freeness values (CSF 85-130 ml). Most laboratory handsheet properties, i.e. strength, light scattering and opacity, were improved at given specific refining energy. Only brightness was slightly decreased. The MnP treatment seems to be a promising concept for energy savings and fiber surface modifications. (C) 2007 Elsevier Inc. All rights reserved.
    Alkuperäiskielienglanti
    LehtiEnzyme and microbial technology
    Vuosikerta43
    Numero2
    Sivut169-177
    Sivumäärä9
    ISSN0141-0229
    DOI - pysyväislinkit
    TilaJulkaistu - 2008
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

    Lainaa tätä

    Maijala, Pekka ; Kleen, M ; Westin, O ; Poppius-Levlin, K ; Herranen, K ; Lehto, J. H ; Reponen, P ; Mäentausta, O ; Mettälä, Aila ; Hatakka, Annele. / Biomechanical pulping of softwood with enzymes and white-rot fungus Physisporinus rivulosus. Julkaisussa: Enzyme and microbial technology. 2008 ; Vuosikerta 43, Nro 2. Sivut 169-177.
    @article{1ef677a826bc478298fb3b5ae994863d,
    title = "Biomechanical pulping of softwood with enzymes and white-rot fungus Physisporinus rivulosus",
    abstract = "Manufacturing of mechanical pulp is a very energy-consuming process. Application of enzymes to wood chips is an attractive alternative to decrease energy demand in the refining process and to introduce novel functional properties on fibers. A variety of enzymes were applied to plug screw compressed chips in order to improve enzyme access onto wood fibers. Consumption of refining energy was examined with a laboratory low-intensity refiner after 6-h enzyme treatments with manganese peroxidase (MnP), laccase-mediator system, pectinase, or a cellulase mixture. The results were compared to biopulping with the white-rot fungus Physisporinus rivulosus. Specific energy consumption resembling the first-stage refining was measured, and chemical modifications on the fibers were evaluated. The specific energy consumption in the refining of Scots pine wood chips treated with MnP decreased about 11{\%} when compared to the untreated reference chips, and in the refining of Norway spruce somewhat less, 6{\%}. Fungal pre-treatment resulted in similar energy savings on spruce as MnP treatment did. Hydrolytic enzyme and MnP treatments on pine resulted in similar energy savings on average, though the hydrolytic enzyme treatments at their best reached to about 15{\%} energy savings. Polyelectrolyte titration indicated increased surface charge in the case of MnP treated pine pulps, which were refined to low freeness values (CSF 85-130 ml). Most laboratory handsheet properties, i.e. strength, light scattering and opacity, were improved at given specific refining energy. Only brightness was slightly decreased. The MnP treatment seems to be a promising concept for energy savings and fiber surface modifications. (C) 2007 Elsevier Inc. All rights reserved.",
    author = "Pekka Maijala and M Kleen and O Westin and K Poppius-Levlin and K Herranen and Lehto, {J. H} and P Reponen and O M{\"a}entausta and Aila Mett{\"a}l{\"a} and Annele Hatakka",
    year = "2008",
    doi = "10.1016/j.enzmictec.2007.11.017",
    language = "English",
    volume = "43",
    pages = "169--177",
    journal = "Enzyme and microbial technology",
    issn = "0141-0229",
    publisher = "Elsevier Scientific Publ. Co",
    number = "2",

    }

    Maijala, P, Kleen, M, Westin, O, Poppius-Levlin, K, Herranen, K, Lehto, JH, Reponen, P, Mäentausta, O, Mettälä, A & Hatakka, A 2008, 'Biomechanical pulping of softwood with enzymes and white-rot fungus Physisporinus rivulosus', Enzyme and microbial technology, Vuosikerta 43, Nro 2, Sivut 169-177. https://doi.org/10.1016/j.enzmictec.2007.11.017

    Biomechanical pulping of softwood with enzymes and white-rot fungus Physisporinus rivulosus. / Maijala, Pekka; Kleen, M; Westin, O; Poppius-Levlin, K; Herranen, K; Lehto, J. H; Reponen, P; Mäentausta, O; Mettälä, Aila; Hatakka, Annele.

    julkaisussa: Enzyme and microbial technology, Vuosikerta 43, Nro 2, 2008, s. 169-177.

    Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

    TY - JOUR

    T1 - Biomechanical pulping of softwood with enzymes and white-rot fungus Physisporinus rivulosus

    AU - Maijala, Pekka

    AU - Kleen, M

    AU - Westin, O

    AU - Poppius-Levlin, K

    AU - Herranen, K

    AU - Lehto, J. H

    AU - Reponen, P

    AU - Mäentausta, O

    AU - Mettälä, Aila

    AU - Hatakka, Annele

    PY - 2008

    Y1 - 2008

    N2 - Manufacturing of mechanical pulp is a very energy-consuming process. Application of enzymes to wood chips is an attractive alternative to decrease energy demand in the refining process and to introduce novel functional properties on fibers. A variety of enzymes were applied to plug screw compressed chips in order to improve enzyme access onto wood fibers. Consumption of refining energy was examined with a laboratory low-intensity refiner after 6-h enzyme treatments with manganese peroxidase (MnP), laccase-mediator system, pectinase, or a cellulase mixture. The results were compared to biopulping with the white-rot fungus Physisporinus rivulosus. Specific energy consumption resembling the first-stage refining was measured, and chemical modifications on the fibers were evaluated. The specific energy consumption in the refining of Scots pine wood chips treated with MnP decreased about 11% when compared to the untreated reference chips, and in the refining of Norway spruce somewhat less, 6%. Fungal pre-treatment resulted in similar energy savings on spruce as MnP treatment did. Hydrolytic enzyme and MnP treatments on pine resulted in similar energy savings on average, though the hydrolytic enzyme treatments at their best reached to about 15% energy savings. Polyelectrolyte titration indicated increased surface charge in the case of MnP treated pine pulps, which were refined to low freeness values (CSF 85-130 ml). Most laboratory handsheet properties, i.e. strength, light scattering and opacity, were improved at given specific refining energy. Only brightness was slightly decreased. The MnP treatment seems to be a promising concept for energy savings and fiber surface modifications. (C) 2007 Elsevier Inc. All rights reserved.

    AB - Manufacturing of mechanical pulp is a very energy-consuming process. Application of enzymes to wood chips is an attractive alternative to decrease energy demand in the refining process and to introduce novel functional properties on fibers. A variety of enzymes were applied to plug screw compressed chips in order to improve enzyme access onto wood fibers. Consumption of refining energy was examined with a laboratory low-intensity refiner after 6-h enzyme treatments with manganese peroxidase (MnP), laccase-mediator system, pectinase, or a cellulase mixture. The results were compared to biopulping with the white-rot fungus Physisporinus rivulosus. Specific energy consumption resembling the first-stage refining was measured, and chemical modifications on the fibers were evaluated. The specific energy consumption in the refining of Scots pine wood chips treated with MnP decreased about 11% when compared to the untreated reference chips, and in the refining of Norway spruce somewhat less, 6%. Fungal pre-treatment resulted in similar energy savings on spruce as MnP treatment did. Hydrolytic enzyme and MnP treatments on pine resulted in similar energy savings on average, though the hydrolytic enzyme treatments at their best reached to about 15% energy savings. Polyelectrolyte titration indicated increased surface charge in the case of MnP treated pine pulps, which were refined to low freeness values (CSF 85-130 ml). Most laboratory handsheet properties, i.e. strength, light scattering and opacity, were improved at given specific refining energy. Only brightness was slightly decreased. The MnP treatment seems to be a promising concept for energy savings and fiber surface modifications. (C) 2007 Elsevier Inc. All rights reserved.

    U2 - 10.1016/j.enzmictec.2007.11.017

    DO - 10.1016/j.enzmictec.2007.11.017

    M3 - Article

    VL - 43

    SP - 169

    EP - 177

    JO - Enzyme and microbial technology

    JF - Enzyme and microbial technology

    SN - 0141-0229

    IS - 2

    ER -