Oxalic acid production and metal removal during fungal degradation of CCA-treated wood in nutrient culture
- Authors
- Choi, Yong-Seok; Kim, Jae-Jin; Yoshimura, Tsuyoshi; Kim, Gyu-Hyeok
- Issue Date
- 8월-2014
- Publisher
- WALTER DE GRUYTER GMBH
- Keywords
- biodegradation; brown rot fungi; CCA-treated wood; metal removal; oxalic acid (OA)
- Citation
- HOLZFORSCHUNG, v.68, no.6, pp.685 - 691
- Indexed
- SCIE
SCOPUS
- Journal Title
- HOLZFORSCHUNG
- Volume
- 68
- Number
- 6
- Start Page
- 685
- End Page
- 691
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/97903
- DOI
- 10.1515/hf-2013-0169
- ISSN
- 0018-3830
- Abstract
- The objective of this study was to evaluate characteristics of oxalic acid (OA) production and metal removal during degradation of CCA-treated wood in nutrient culture by brown-rot fungi. Two brown-rot fungi, Crustoderma sp. and Fomitopsis palustris extensively degraded the CCA-treated wood, causing mass losses (MLs) up to 49.0% and 43.5%, respectively, while these fungi produced OA during degradation up to 21.3 mg g(-1) and 43.8 mg g(-1), respectively. Antrodia vaillantii and Polyporales sp. produced OA up to 28.9 mg g(-1) and 29.8 mg g(-1), respectively, with <3% ML. Fomitopsis palustris with the highest OA production removed effectively 87.5% As and 86.0% Cr during degradation of the treated wood. Antrodia vaillantii and an unknown Polyporales sp. showed notable As removal rates of 90.3% and 88.9%, respectively, and 81.0-83.9% Cr removal. However, only moderate amounts of Cu (40.8%) were extracted by the fungi investigated. The conclusion is that OA production by brown-rot fungi can be partially associated with removal of Cr and As during fungal degradation of CCA-treated wood.
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Collections - College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
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