Enzymatic upgrade of old paperboard containers

H. Pala, M. Adilia Lemos, M. Mota, F. M. Gama

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)274-279
Number of pages6
JournalEnzyme and Microbial Technology
Issue number4-5
Publication statusPublished - 2001
Externally publishedYes


  • Cellulase
  • Cellulose binding-domains
  • Pulp and paper
  • Drainage
  • Physical properties


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