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A microcalorimetric method of studying mould activity as a function of water activity

In English

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.

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