Impact of xylanase pre-treatment on peroxide bleaching stage of biokraft pulp
| Autor: | Sami Imamoglu, Celil Atik, Hakan Bermek |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Pre treatment
Waste management Chemistry Pulp (paper) Significant difference engineering.material Pulp and paper industry Microbiology Peroxide Biomaterials stomatognathic diseases chemistry.chemical_compound stomatognathic system Ultimate tensile strength engineering Xylanase Waste Management and Disposal Bursting strength Kraft paper |
| Zdroj: | International Biodeterioration & Biodegradation. 58:22-26 |
| ISSN: | 0964-8305 |
| Popis: | Biokraft pulping of aspen has been investigated. Wood chips were treated with CZ-3 and FP 90031-sp strains of white-rot fungus Ceriporiopsis subvermispora for 2 weeks. Afterwards, bleachability of the pulps in peroxide stage was evaluated. Two commercial xylanase enzymes were used for bleaching. Xylanase pre-treatment of pulps increased their ISO brightness properties by approximately 10%. Biokraft pulps were beaten more easily in comparison to the control kraft pulps. Meanwhile, a significant difference due to the fungal or enzymatic pre-treatments was not found in tensile or bursting strength properties of pulps. A strength correlation was found between freeness and alkaline solubility (S18) for pulps at equal beating conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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