Measurements of Fungal Activity as a Function of Relative Humidity by Isothermal Microcalorimetry
(2007) In Preprint without journal information- Abstract
- The heat produced by the metabolism of a mould fungus (Penicillium brevicompactum) growing on softwood was measured by isothermal calorimetry under different relative humidity (RH) levels during desorption (from 95% to 65% RH) and absorption (from 65% to 95% RH). The humidification method was successful and it was possible to decrease and increase the relative humidity and moisture content in small steps. The calorimetric measurements were difficult to interpret as the thermal power was not constant at most levels. However, a general trend with lowered activity at lower relative humidity was seen. Calorimetry can possibly be used in mapping dynamic mould activity under changing environmental conditions and can therefore be applied in... (More)
- The heat produced by the metabolism of a mould fungus (Penicillium brevicompactum) growing on softwood was measured by isothermal calorimetry under different relative humidity (RH) levels during desorption (from 95% to 65% RH) and absorption (from 65% to 95% RH). The humidification method was successful and it was possible to decrease and increase the relative humidity and moisture content in small steps. The calorimetric measurements were difficult to interpret as the thermal power was not constant at most levels. However, a general trend with lowered activity at lower relative humidity was seen. Calorimetry can possibly be used in mapping dynamic mould activity under changing environmental conditions and can therefore be applied in predicting the risk of mould in buildings. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1530152
- author
- Li, Yujing LU ; Wadsö, Lars LU and Bjurman, Jonny
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- unpublished
- subject
- keywords
- relative humidity, softwood, mould growth, Isothermal calorimetry, fungal activity, Penicillium brevicompactum
- in
- Preprint without journal information
- pages
- 14 pages
- publisher
- Manne Siegbahn Institute
- ISSN
- 0348-7911
- language
- English
- LU publication?
- yes
- additional info
- This is Paper VI published in the doctoral thesis published by Yujing Li: "Mould on buildning materials - A calorimetric study of fungal activity as a function of environmental factors"
- id
- bdd259be-64b0-4c3c-9e9a-175b97f0e150 (old id 1530152)
- date added to LUP
- 2016-04-01 16:11:01
- date last changed
- 2018-11-21 20:39:24
@article{bdd259be-64b0-4c3c-9e9a-175b97f0e150, abstract = {{The heat produced by the metabolism of a mould fungus (Penicillium brevicompactum) growing on softwood was measured by isothermal calorimetry under different relative humidity (RH) levels during desorption (from 95% to 65% RH) and absorption (from 65% to 95% RH). The humidification method was successful and it was possible to decrease and increase the relative humidity and moisture content in small steps. The calorimetric measurements were difficult to interpret as the thermal power was not constant at most levels. However, a general trend with lowered activity at lower relative humidity was seen. Calorimetry can possibly be used in mapping dynamic mould activity under changing environmental conditions and can therefore be applied in predicting the risk of mould in buildings.}}, author = {{Li, Yujing and Wadsö, Lars and Bjurman, Jonny}}, issn = {{0348-7911}}, keywords = {{relative humidity; softwood; mould growth; Isothermal calorimetry; fungal activity; Penicillium brevicompactum}}, language = {{eng}}, publisher = {{Manne Siegbahn Institute}}, series = {{Preprint without journal information}}, title = {{Measurements of Fungal Activity as a Function of Relative Humidity by Isothermal Microcalorimetry}}, url = {{https://lup.lub.lu.se/search/files/4595036/1530153.pdf}}, year = {{2007}}, }