Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 90-94 |
| Number of pages | 5 |
| Journal | Journal of Pulp and Paper Science |
| Volume | 25 |
| Issue number | 3 |
| Publication status | Published - 1999 |
| MoE publication type | A1 Journal article-refereed |
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Effects of laccase/HBT treatment on pulp and lignin structures. / Poppius-Levlin, Kristiina; Wang, Wei; Tamminen, Tarja; Hortling, Bo; Viikari, Liisa; Niku-Paavola, Marja-Leena.
In: Journal of Pulp and Paper Science, Vol. 25, No. 3, 1999, p. 90-94.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Effects of laccase/HBT treatment on pulp and lignin structures
AU - Poppius-Levlin, Kristiina
AU - Wang, Wei
AU - Tamminen, Tarja
AU - Hortling, Bo
AU - Viikari, Liisa
AU - Niku-Paavola, Marja-Leena
PY - 1999
Y1 - 1999
N2 - A significant increase in delignification was obtained for both a pine kraft pulp and ail oxygen-delignified pine kraft pulp by means of HBT-mediated (1-hydroxybenzotriazole) laccase treatment compared with the reference treatments. Residual lignins from the pulps before and after the different treatments were isolated and characterized. Laccase,without mediator did nor delignify the pulp, nor did it depolymerize or polymerize the lignin in the fibres. However some minor chemical modifications occurred in the fibre lignin. On the other hand laccase together with HBT was able to degrade the lignin in the pulp fibres. HBT-mediated laccase treatment also caused an increase in the carbonyl and carboxyl group contents, and a decrease in the free phenolic hydroxyl and methoxyl group contents of the residual lignins.
AB - A significant increase in delignification was obtained for both a pine kraft pulp and ail oxygen-delignified pine kraft pulp by means of HBT-mediated (1-hydroxybenzotriazole) laccase treatment compared with the reference treatments. Residual lignins from the pulps before and after the different treatments were isolated and characterized. Laccase,without mediator did nor delignify the pulp, nor did it depolymerize or polymerize the lignin in the fibres. However some minor chemical modifications occurred in the fibre lignin. On the other hand laccase together with HBT was able to degrade the lignin in the pulp fibres. HBT-mediated laccase treatment also caused an increase in the carbonyl and carboxyl group contents, and a decrease in the free phenolic hydroxyl and methoxyl group contents of the residual lignins.
M3 - Article
VL - 25
SP - 90
EP - 94
JO - J-FOR: Journal of Science & Technology for Forest Products and Processes
JF - J-FOR: Journal of Science & Technology for Forest Products and Processes
SN - 1927-6311
IS - 3
ER -