Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces
The possible influence of anatomical sections of wood on mold growth was investigated by means of a laboratory experiment. The selected fungi, <i>Aspergillus</i> sp., <i>Penicillium</i> sp., and <i>Alternaria</i> sp. were inoculated by spraying on the surface of w...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/1/228 |
| _version_ | 1797626330311819264 |
|---|---|
| author | Pavla Ryparová Pavel Kopecký Kamil Staněk Jan Richter Jan Tywoniak |
| author_facet | Pavla Ryparová Pavel Kopecký Kamil Staněk Jan Richter Jan Tywoniak |
| author_sort | Pavla Ryparová |
| collection | DOAJ |
| description | The possible influence of anatomical sections of wood on mold growth was investigated by means of a laboratory experiment. The selected fungi, <i>Aspergillus</i> sp., <i>Penicillium</i> sp., and <i>Alternaria</i> sp. were inoculated by spraying on the surface of wood specimens prepared from pine (<i>Pinus sylvestris</i>) and spruce (<i>Picea abies</i>). The incubation was carried out under stable environmental conditions (temperature of 22 °C, relative humidity of 75, 87, and 95%) over three months. Mold growth was evaluated based on regular microscopic and macroscopic observations. The recorded mold coverage fractions and the qualitative indicators of mold development were later expressed by a dimensionless mold index. The differences in mold growth in the anatomical sections of wood were found to be relatively insignificant. In contrast, comparison of measured data with other experimental studies showed large differences, especially in the initial growth phase. The discrepancy is probably related to differences among the experimental protocols. It is concluded that laboratory mold growth studies would be improved if a common standardized methodology was developed and followed. |
| first_indexed | 2024-03-11T10:08:52Z |
| format | Article |
| id | doaj.art-6c5bcb06a4af49f0acf72cddc7f0af28 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T10:08:52Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-6c5bcb06a4af49f0acf72cddc7f0af282023-11-16T14:52:28ZengMDPI AGApplied Sciences2076-34172022-12-0113122810.3390/app13010228Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood SurfacesPavla Ryparová0Pavel Kopecký1Kamil Staněk2Jan Richter3Jan Tywoniak4Department of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech RepublicDepartment of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech RepublicUniversity Centre for Energy Efficient Buildings, Czech Technical University in Prague, Třinecká 1024, 273 43 Buštěhrad, Czech RepublicUniversity Centre for Energy Efficient Buildings, Czech Technical University in Prague, Třinecká 1024, 273 43 Buštěhrad, Czech RepublicDepartment of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech RepublicThe possible influence of anatomical sections of wood on mold growth was investigated by means of a laboratory experiment. The selected fungi, <i>Aspergillus</i> sp., <i>Penicillium</i> sp., and <i>Alternaria</i> sp. were inoculated by spraying on the surface of wood specimens prepared from pine (<i>Pinus sylvestris</i>) and spruce (<i>Picea abies</i>). The incubation was carried out under stable environmental conditions (temperature of 22 °C, relative humidity of 75, 87, and 95%) over three months. Mold growth was evaluated based on regular microscopic and macroscopic observations. The recorded mold coverage fractions and the qualitative indicators of mold development were later expressed by a dimensionless mold index. The differences in mold growth in the anatomical sections of wood were found to be relatively insignificant. In contrast, comparison of measured data with other experimental studies showed large differences, especially in the initial growth phase. The discrepancy is probably related to differences among the experimental protocols. It is concluded that laboratory mold growth studies would be improved if a common standardized methodology was developed and followed.https://www.mdpi.com/2076-3417/13/1/228woodmold growthlaboratory experimentsgrowth curvesmold index |
| spellingShingle | Pavla Ryparová Pavel Kopecký Kamil Staněk Jan Richter Jan Tywoniak Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces Applied Sciences wood mold growth laboratory experiments growth curves mold index |
| title | Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces |
| title_full | Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces |
| title_fullStr | Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces |
| title_full_unstemmed | Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces |
| title_short | Laboratory Investigations of Mold Growth on Transverse and Longitudinal Wood Surfaces |
| title_sort | laboratory investigations of mold growth on transverse and longitudinal wood surfaces |
| topic | wood mold growth laboratory experiments growth curves mold index |
| url | https://www.mdpi.com/2076-3417/13/1/228 |
| work_keys_str_mv | AT pavlaryparova laboratoryinvestigationsofmoldgrowthontransverseandlongitudinalwoodsurfaces AT pavelkopecky laboratoryinvestigationsofmoldgrowthontransverseandlongitudinalwoodsurfaces AT kamilstanek laboratoryinvestigationsofmoldgrowthontransverseandlongitudinalwoodsurfaces AT janrichter laboratoryinvestigationsofmoldgrowthontransverseandlongitudinalwoodsurfaces AT jantywoniak laboratoryinvestigationsofmoldgrowthontransverseandlongitudinalwoodsurfaces |