Treatment of rubberwood (Hevea brasiliensis) (Willd. ex A. Juss.) Müll. Arg. with maleic anhydride to prevent moulds

K. Oldertrøen, A. H-Kittikun, S. Phongpaichit, S. Riyajan and R. Teanpaisal
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K. Oldertrøen: Department of Industrial Biotechnology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Thailand
A. H-Kittikun: Department of Industrial Biotechnology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Thailand
S. Phongpaichit: Department of Microbiology and Natural Products Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
S. Riyajan: Department of Chemistry, Faculty of Science and Technology, Thammasat University, Bangkok, Thailand
R. Teanpaisal: Department of Stomatology and Common Oral Diseases and Epidemiology Research Center, Faculty of Dentistry, Prince of Songkla University, HatYai, Thailand

Journal of Forest Science, 2016, vol. 62, issue 7, 314-321

Abstract: The rubberwood samples were treated with 0.5-10% maleic anhydride (MA) solutions. The treatment of wood with 2.5% MA was adequate to prevent the growth of moulds on wood for 1 year at least. The viable count of Aspergillus niger van Tieghem PSU1 on MA treated wood indicated that fungal spores were not killed. The maleic anhydride treated wood slices had no antifungal activity. The concentration of MA released from treated wood in the leachate was 0.02 mg.m-3. Agar well diffusion showed that the leachate from MA treated wood had no antifungal activity. However, after leaching MA treated wood still had a high resistance to mould growth. The moisture contents of MA treated and untreated wood samples were not significantly different. The MA treated wood showed almost a smooth surface while the untreated wood showed a rough surface. The cytotoxicity test showed that the leachates of both MA treated and untreated wood samples had a similar effect. So the treatment of rubberwood with MA is a safe method to prevent mould growth.

Keywords: wood modification; mold prevention; leaching; wood moisture content (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:62:y:2016:i:7:id:109-2015-jfs

DOI: 10.17221/109/2015-JFS

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