Energy saving with fungal enzymatic treatment of industrial poplar alkaline peroxide pulps

An alkaline peroxide industrial pulp from poplar was treated with a manganese peroxidase (MnP) from the hypersecretory strain of Phanerochaete chrysosporium I-1512 after a second stage of refining. The enzymatic treatment caused an improvement in the pulp quality by inducing an enzymatic refining on...

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Bibliographic Details
Published in:Enzyme and microbial technology 2001-08, Vol.29 (2), p.160-165
Main Authors: Sigoillot, J.C, Petit-Conil, M, Herpoël, I, Joseleau, J.P, Ruel, K, Kurek, B, de Choudens, C, Asther, M
Format: Article
Language:English
Subjects:
Alkaline peroxyde
Biological and medical sciences
Biotechnology
Chemical modification
Enzymatic refining
Enzymes
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Lignin
Manganese peroxidase
Natural fibers
Other applications
Peroxides
Phanerochaete chrysosporium
Phanerochaete chrysosporium I-1512
Poplar
Pulp and paper
Transmission electron microscopy
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Summary:An alkaline peroxide industrial pulp from poplar was treated with a manganese peroxidase (MnP) from the hypersecretory strain of Phanerochaete chrysosporium I-1512 after a second stage of refining. The enzymatic treatment caused an improvement in the pulp quality by inducing an enzymatic refining onto the fibers. Transmission electron microscopy showed that the enzymatic refining was characterized by internal and external fibrillation of the fibers. Chemical modifications of lignin caused by MnP treatment facilitated the post-refining stage before papersheet manufacture. All together the enzymatic treatment resulted in energy savings of 25% during beating.
ISSN:0141-0229
1879-0909
DOI:10.1016/S0141-0229(01)00368-4