A carregar...
Publicação
Enzymatic modification of paper fibres
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 169.15 KB | Adobe PDF |
Orientador(es)
Resumo(s)
The enzymatic mode of action in paper fibre upgrading is
still uncertain. In an attempt to clarify how enzymes
modify pulp and paper properties, several parameters
were analysed in the present work: (i) thermal analysis of
the water–solid surface interactions; (ii) fibre cake
permeability; (iii) particle size analysis. The results
obtained suggest that enzymes modify the interfacial
properties of fibres, increasing the water affinity, which
in turn change the technical properties of pulp and paper,
such as drainability and strength. The modification of
paper and pulps following a treatment with cellulosebinding
domains further supports this hypothesis.
Descrição
Palavras-chave
Paper pulps Enzymes Thermal analysis Permeability Cellulose-binding domains Fibre cake
Contexto Educativo
Citação
PALA, Helena; MOTA, Manuel; GAMA, Francisco Miguel - Enzymatic modification of paper fibres. Biocatalysis and Biotransformation. Vol. 20, n.º 5 (2002), p. 353-361.