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A pilot scale study on the effects of various temperature and time conditions on milk quality using direct and indirect heating systems

Lalwani, Shruti LU ; Lewerentz, Frida LU ; Håkansson, Andreas LU ; Babic, Marja ; Madina, Prilliani ; Edén, Jonas LU ; Paulsson, Marie LU and Glantz, Maria LU (2024) In International Dairy Journal 155.
Abstract

Effects of various heating temperatures (124, 129, 134, 140 or 143 °C) and holding times (1 and 4 s) on milk quality using direct and indirect heating systems at pilot scale were investigated. Vitamin degradation was observed for both direct and indirect heating and the degradation increased with increasing temperature and holding time, however, no difference could be seen between heating systems. Slight increase in pH and decrease in ionic calcium for direct heating occurred. An increase in fat globule size and aggregate formation were noted for direct heating with more pronounced effects with increasing temperature. Physical stability of milk was unaffected on day of production; however, after 28 days of storage instability was more... (More)

Effects of various heating temperatures (124, 129, 134, 140 or 143 °C) and holding times (1 and 4 s) on milk quality using direct and indirect heating systems at pilot scale were investigated. Vitamin degradation was observed for both direct and indirect heating and the degradation increased with increasing temperature and holding time, however, no difference could be seen between heating systems. Slight increase in pH and decrease in ionic calcium for direct heating occurred. An increase in fat globule size and aggregate formation were noted for direct heating with more pronounced effects with increasing temperature. Physical stability of milk was unaffected on day of production; however, after 28 days of storage instability was more apparent for indirect heating. No effect of heating system was observed on colour. This suggests that heating may influence milk quality, however, no clear differences between direct and indirect heating were observed for the quality parameters investigated.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Dairy Journal
volume
155
article number
105951
publisher
Elsevier
external identifiers
  • scopus:85189932933
ISSN
0958-6946
DOI
10.1016/j.idairyj.2024.105951
language
English
LU publication?
yes
id
20c5f785-e11c-409d-8993-051c2e4d49bb
date added to LUP
2024-04-23 11:20:18
date last changed
2024-04-23 11:21:08
@article{20c5f785-e11c-409d-8993-051c2e4d49bb,
  abstract     = {{<p>Effects of various heating temperatures (124, 129, 134, 140 or 143 °C) and holding times (1 and 4 s) on milk quality using direct and indirect heating systems at pilot scale were investigated. Vitamin degradation was observed for both direct and indirect heating and the degradation increased with increasing temperature and holding time, however, no difference could be seen between heating systems. Slight increase in pH and decrease in ionic calcium for direct heating occurred. An increase in fat globule size and aggregate formation were noted for direct heating with more pronounced effects with increasing temperature. Physical stability of milk was unaffected on day of production; however, after 28 days of storage instability was more apparent for indirect heating. No effect of heating system was observed on colour. This suggests that heating may influence milk quality, however, no clear differences between direct and indirect heating were observed for the quality parameters investigated.</p>}},
  author       = {{Lalwani, Shruti and Lewerentz, Frida and Håkansson, Andreas and Babic, Marja and Madina, Prilliani and Edén, Jonas and Paulsson, Marie and Glantz, Maria}},
  issn         = {{0958-6946}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{International Dairy Journal}},
  title        = {{A pilot scale study on the effects of various temperature and time conditions on milk quality using direct and indirect heating systems}},
  url          = {{http://dx.doi.org/10.1016/j.idairyj.2024.105951}},
  doi          = {{10.1016/j.idairyj.2024.105951}},
  volume       = {{155}},
  year         = {{2024}},
}