Effects of bacterial treatments on wood extractives
| Autor: | Liisa Viikari, Matti Siika-aho, Jonas Konn, Anne Kallioinen, Marjaana Rättö, Anu Vaari |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Paper
Microbial metabolism Industrial Waste Bioengineering lipophilic wood extractives Applied Microbiology and Biotechnology Bioreactors Nutrient Species Specificity Pseudomonas Botany Wood degradation Plant metabolism Food science Picea Biopulping lipophilic wood extractives Bacteria biology Plant Extracts Chemistry Water pollutants General Medicine Biodegradation biology.organism_classification Wood Pitch Biodegradation Environmental Norway spruce Rahnella Biopulping Resins Plant Water Pollutants Chemical Biotechnology |
| Zdroj: | Kallioinen, A, Vaari, A, Rättö, M, Konn, J, Siika-aho, M & Viikari, L 2003, ' Effects of bacterial treatments on wood extractives ', Journal of Biotechnology, vol. 103, no. 1, pp. 67-76 . https://doi.org/10.1016/S0168-1656(03)00051-8 |
| ISSN: | 1873-4863 0168-1656 |
| DOI: | 10.1016/S0168-1656(03)00051-8 |
| Popis: | Bacterial strains were isolated from spruce wood chips and their ability to reduce the content of wood extractives was studied. Strains were screened by cultivation on liquid media containing wood extractives as the major nutrient. Some bacterial species could decrease remarkably the amount of extractives in the liquid media and reduced the amount of triglycerides, steryl esters and total extractives by 100, 20 and 39%, respectively. Spruce wood chips were treated in controlled conditions with selected bacteria to test their effects on the chips. All the bacteria grew well on wood chips. The effect of bacterial metabolism on wood extractives was significant. Bacterial treatments reduced the amount of lipophilic extractives by 16-38% in 1 week of treatment and up to 67% in 2 weeks. The most efficient strain removed 90, 66 and 50% of triglycerides, steryl esters and resin acids, respectively, in 2 weeks. These results indicate that bacteria may be promising agents for the removal of extractives for improved pulping and papermaking processes. |
| Databáze: | OpenAIRE |
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