A microcalorimetric method of studying mould activity as a function of water activity
Author
Summary, in English
This paper presents a new method of studying mould activity as a function of water activity by measuring the heat produced by the fungal metabolism. During a measurement a small sample (<1 g) of a moulded substrate is moved between a humidity generator, where it is conditioned to a certain water activity, and a microcalorimeter, where the heat production rate is measured. This is repeated for different water activities. A conditioning and the subsequent thermal measurement takes approximately one day for each water activity. Results are presented from a measurement with Penicillium mould growing on a bread substrate. The results correlate well with literature data indicating that the present method is a rapid way of assessing mould activity as a function of water activity.
Department/s
Publishing year
1998
Language
English
Pages
25-28
Publication/Series
International Biodeterioration & Biodegradation
Volume
42
Issue
1
Document type
Journal article
Publisher
Elsevier
Topic
- Materials Engineering
Status
Published
ISBN/ISSN/Other
- ISSN: 1879-0208