Scots pine (Pinus sylvestris) bark composition and degradation by fungi: potential substrate for bioremediation
| Autor: | Stefan Willför, Lara Valentín, Beata Kluczek-Turpeinen, Marja Tuomela, Kari Steffen, Annele Hatakka, Jarl Hemming |
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| Rok vydání: | 2009 |
| Předmět: |
0106 biological sciences
animal structures Environmental Engineering Cell Respiration Stropharia rugosoannulata Bioengineering Cellulase 010501 environmental sciences complex mixtures 01 natural sciences Lignin chemistry.chemical_compound 010608 biotechnology Botany Plant Bark Waste Management and Disposal Phanerochaete velutina 0105 earth and related environmental sciences biology Renewable Energy Sustainability and the Environment Plant Extracts Hydrolysis fungi Scots pine Fungi food and beverages Pinus sylvestris General Medicine 15. Life on land biology.organism_classification Molecular Weight Biodegradation Environmental chemistry visual_art visual_art.visual_art_medium biology.protein Phanerochaete Bark |
| Zdroj: | Bioresource technology. 101(7) |
| ISSN: | 1873-2976 |
| Popis: | The composition of Scots pine bark, its degradation, and the production of hydrolytic and ligninolytic enzymes were evaluated during 90 days of incubation with Phanerochaete velutina and Stropharia rugosoannulata. The aim was to evaluate if pine bark can be a suitable fungal substrate for bioremediation applications. The original pine bark contained 45% lignin, 25% cellulose, and 15% hemicellulose. Resin acids were the most predominant lipophilic extractives, followed by sitosterol and unsaturated fatty acids, such as linoleic and oleic acids. Both fungi degraded all main components of bark, specially cellulose (79% loss by P. velutina). During cultivation on pine bark, fungi also degraded sitosterol, produced malic acid, and oxidated unsaturated fatty acids. The most predominant enzymes produced by both fungi were cellulase and manganese peroxidase. The results indicate that Scots pine bark supports enzyme production and provides nutrients to fungi, thus pine bark may be suitable fungal substrate for bioremediation. |
| Databáze: | OpenAIRE |
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