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

Markova, N and Wadsö, Lars LU (1998) In International Biodeterioration & Biodegradation 42(1). p.25-28
Abstract
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... (More)
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. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Biodeterioration & Biodegradation
volume
42
issue
1
pages
25 - 28
publisher
Elsevier
external identifiers
  • scopus:0031787431
ISSN
1879-0208
DOI
10.1016/S0964-8305(98)00042-0
language
English
LU publication?
yes
id
1d136ffd-6d08-444a-9c50-76c0e5aec513 (old id 1034492)
date added to LUP
2016-04-01 12:28:51
date last changed
2022-01-27 05:37:43
@article{1d136ffd-6d08-444a-9c50-76c0e5aec513,
  abstract     = {{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 (&lt;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.}},
  author       = {{Markova, N and Wadsö, Lars}},
  issn         = {{1879-0208}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{25--28}},
  publisher    = {{Elsevier}},
  series       = {{International Biodeterioration & Biodegradation}},
  title        = {{A microcalorimetric method of studying mould activity as a function of water activity}},
  url          = {{http://dx.doi.org/10.1016/S0964-8305(98)00042-0}},
  doi          = {{10.1016/S0964-8305(98)00042-0}},
  volume       = {{42}},
  year         = {{1998}},
}