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The electrical conductivity of milk - The effect of dilution and temperature

Henningsson, Marcus LU ; Östergren, Karin LU and Dejmek, Petr LU (2005) In International Journal of Food Properties 8(1). p.15-22
Abstract
The electrical conductivity of milk at various dilutions was measured at different temperatures from; 2 to 70 degrees C The results showed that dilution has only, a small influence on the temperature dependence of conductivity. A simple power-law model predicts that the conductivity is proportional to the milk concentration to the power of 0.84 and a two-term model describes the temperature dependency. The overall model has a standard deviation of 0.0067 mS cm(-1), which corresponds approximately to 0.1% milk at 2 degrees C and 0.07% milk at 70 degrees C. It was further shown that for less than about 25% milk in water Kohlausch's law and the Dekve-Huckel-Onsager theory can be used to describe the relationship between the concentration,... (More)
The electrical conductivity of milk at various dilutions was measured at different temperatures from; 2 to 70 degrees C The results showed that dilution has only, a small influence on the temperature dependence of conductivity. A simple power-law model predicts that the conductivity is proportional to the milk concentration to the power of 0.84 and a two-term model describes the temperature dependency. The overall model has a standard deviation of 0.0067 mS cm(-1), which corresponds approximately to 0.1% milk at 2 degrees C and 0.07% milk at 70 degrees C. It was further shown that for less than about 25% milk in water Kohlausch's law and the Dekve-Huckel-Onsager theory can be used to describe the relationship between the concentration, temperature, and conductivity using a representative limiting molar conductivity of milk ions of 75 mS cm(2) mol(-1). (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Food Properties
volume
8
issue
1
pages
15 - 22
publisher
Taylor & Francis
external identifiers
  • wos:000227631300002
  • scopus:14844339943
ISSN
1532-2386
DOI
10.1081/JFP-200048143
language
English
LU publication?
yes
id
fab8d623-489f-4cd2-a540-2a4cfbf7dd71 (old id 152061)
date added to LUP
2007-07-18 14:22:09
date last changed
2017-01-01 05:16:55
@article{fab8d623-489f-4cd2-a540-2a4cfbf7dd71,
  abstract     = {The electrical conductivity of milk at various dilutions was measured at different temperatures from; 2 to 70 degrees C The results showed that dilution has only, a small influence on the temperature dependence of conductivity. A simple power-law model predicts that the conductivity is proportional to the milk concentration to the power of 0.84 and a two-term model describes the temperature dependency. The overall model has a standard deviation of 0.0067 mS cm(-1), which corresponds approximately to 0.1% milk at 2 degrees C and 0.07% milk at 70 degrees C. It was further shown that for less than about 25% milk in water Kohlausch's law and the Dekve-Huckel-Onsager theory can be used to describe the relationship between the concentration, temperature, and conductivity using a representative limiting molar conductivity of milk ions of 75 mS cm(2) mol(-1).},
  author       = {Henningsson, Marcus and Östergren, Karin and Dejmek, Petr},
  issn         = {1532-2386},
  language     = {eng},
  number       = {1},
  pages        = {15--22},
  publisher    = {Taylor & Francis},
  series       = {International Journal of Food Properties},
  title        = {The electrical conductivity of milk - The effect of dilution and temperature},
  url          = {http://dx.doi.org/10.1081/JFP-200048143},
  volume       = {8},
  year         = {2005},
}