Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages
Abstract Unfinished interior wood members in wooden cultural heritages undergo severe discoloration by fungal attack during the summer rainy season. The prevention of fungal discoloration is crucial in the conservation of wooden cultural heritages. It is important to investigate discoloration proper...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-05-01
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| Series: | Journal of Wood Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s10086-020-01878-z |
| _version_ | 1831693101206339584 |
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| author | Min-Ji Kim Yong-Seok Choi Jeong-Joo Oh Gyu-Hyeok Kim |
| author_facet | Min-Ji Kim Yong-Seok Choi Jeong-Joo Oh Gyu-Hyeok Kim |
| author_sort | Min-Ji Kim |
| collection | DOAJ |
| description | Abstract Unfinished interior wood members in wooden cultural heritages undergo severe discoloration by fungal attack during the summer rainy season. The prevention of fungal discoloration is crucial in the conservation of wooden cultural heritages. It is important to investigate discoloration properties of major mold and stain fungi under different relative humidity conditions to prevent discoloration damage. Among the 54 ascomycetes isolated from wooden cultural heritages in Korea, Aureobasidium pullulans, Cladosporium cladosporioides, Coniochaeta velutina, and Graphiopsis chlorocephala were selected as test fungi because of their particularly strong discoloration intensity on wood. For each fungal species, the minimum relative humidity and exposure period for discoloration were investigated. It was found that A. pullulans and Cl. cladosporioides started to grow and discolor at 75% relative humidity within 3 weeks to 4 weeks, and Co. velutina and G. chlorocephala grew and discolored at relative humidity values greater than 95%. Therefore, the prevention of fungal discoloration of interior wood members by A. pullulans and Cl. cladosporioides for the proper conservation of wooden cultural heritages can be achieved by maintaining an indoor relative humidity of 75% or less during the summer rainy season. |
| first_indexed | 2024-12-20T12:07:38Z |
| format | Article |
| id | doaj.art-3342cce01ae44116814c76fc1465b9fa |
| institution | Directory Open Access Journal |
| issn | 1435-0211 1611-4663 |
| language | English |
| last_indexed | 2024-12-20T12:07:38Z |
| publishDate | 2020-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Wood Science |
| spelling | doaj.art-3342cce01ae44116814c76fc1465b9fa2022-12-21T19:41:21ZengSpringerOpenJournal of Wood Science1435-02111611-46632020-05-016611510.1186/s10086-020-01878-zExperimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritagesMin-Ji Kim0Yong-Seok Choi1Jeong-Joo Oh2Gyu-Hyeok Kim3Forest Products Department, National Institute of Forest ScienceForest Products Department, National Institute of Forest ScienceDivision of Environmental Science & Ecological Engineering, College of Life Sciences & Biotechnology, Korea UniversityDivision of Environmental Science & Ecological Engineering, College of Life Sciences & Biotechnology, Korea UniversityAbstract Unfinished interior wood members in wooden cultural heritages undergo severe discoloration by fungal attack during the summer rainy season. The prevention of fungal discoloration is crucial in the conservation of wooden cultural heritages. It is important to investigate discoloration properties of major mold and stain fungi under different relative humidity conditions to prevent discoloration damage. Among the 54 ascomycetes isolated from wooden cultural heritages in Korea, Aureobasidium pullulans, Cladosporium cladosporioides, Coniochaeta velutina, and Graphiopsis chlorocephala were selected as test fungi because of their particularly strong discoloration intensity on wood. For each fungal species, the minimum relative humidity and exposure period for discoloration were investigated. It was found that A. pullulans and Cl. cladosporioides started to grow and discolor at 75% relative humidity within 3 weeks to 4 weeks, and Co. velutina and G. chlorocephala grew and discolored at relative humidity values greater than 95%. Therefore, the prevention of fungal discoloration of interior wood members by A. pullulans and Cl. cladosporioides for the proper conservation of wooden cultural heritages can be achieved by maintaining an indoor relative humidity of 75% or less during the summer rainy season.https://doi.org/10.1186/s10086-020-01878-zFungal discolorationRelative humidityWooden cultural heritages |
| spellingShingle | Min-Ji Kim Yong-Seok Choi Jeong-Joo Oh Gyu-Hyeok Kim Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages Journal of Wood Science Fungal discoloration Relative humidity Wooden cultural heritages |
| title | Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages |
| title_full | Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages |
| title_fullStr | Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages |
| title_full_unstemmed | Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages |
| title_short | Experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages |
| title_sort | experimental investigation of the humidity effect on wood discoloration by selected mold and stain fungi for a proper conservation of wooden cultural heritages |
| topic | Fungal discoloration Relative humidity Wooden cultural heritages |
| url | https://doi.org/10.1186/s10086-020-01878-z |
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