A microcalorimetric method of studying mould activity as a function of water activity
Författare
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.
Avdelning/ar
Publiceringsår
1998
Språk
Engelska
Sidor
25-28
Publikation/Tidskrift/Serie
International Biodeterioration & Biodegradation
Volym
42
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Materials Engineering
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1879-0208