Enzymatic upgrade of old paperboard containers

The use of enzymes in secondary fiber (old paperboard containers) upgrading was investigated. The following aspects were analyzed: (i) the effect of several enzymes and (non-hydrolytic) cellulose-binding domains on the pulp and paper properties; (ii) factors influencing enzymatic treatment of second...

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Bibliographic Details
Published in:Enzyme and microbial technology 2001-09, Vol.29 (4), p.274-279
Main Authors: Pala, H., Lemos, M.A., Mota, M., Gama, F.M.
Format: Article
Language:English
Subjects:
Applied sciences
Biological and medical sciences
Biotechnology
Cellulase
Cellulose binding-domains
Drainage
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Other applications
Paper, paperboard, non wovens
Physical properties
Polymer industry, paints, wood
Pulp and paper
Pulp manufacturing
Wood. Paper. Non wovens
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Summary:The use of enzymes in secondary fiber (old paperboard containers) upgrading was investigated. The following aspects were analyzed: (i) the effect of several enzymes and (non-hydrolytic) cellulose-binding domains on the pulp and paper properties; (ii) factors influencing enzymatic treatment of secondary fiber: enzyme dosage and reaction time; and (iii) enzyme action on fractions with different fiber-length. In general, all the tested enzymatic preparations were able to improve the pulp drainability. In most cases this improvement was obtained at the expense of paper strength. The use of cellulose-binding domains allowed for the simultaneous increase in drainability and strength properties.
ISSN:0141-0229
1879-0909
DOI:10.1016/S0141-0229(01)00380-5