Performance of a photochromic time-temperature indicator under simulated fresh fish supply chain conditions

Nga Mai*, Hubert Audorff, Werner Reichstein, Dietrich Haarer, Gudrun Olafsdottir, Sigurdur G. Bogason, Judith Kreyenschmidt, Sigurjon Arason

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The objective of this study was to investigate the performance of a photochromic time-temperature indicator (TTI) under dynamic temperature conditions simulating real fresh fish distribution chain scenarios. The work aimed at testing the possibility of extending the application of the TTI kinetic model, developed for specific temperature range of isothermal conditions, at low temperatures. The results showed that the TTI presented reproducible responses after being charged and during the discolouration process under different conditions, which revealed the reliability of the indicator. The TTI reflected well the temperature conditions of the studied scenarios, which indicates its potential application to continuously monitor the temperature history of the fresh fish supply chain. The kinetic model gave good fits in non-abused scenarios at temperatures below 2 °C, presenting the potential for application of the model in determining the right charging level to suit a product's shelf life at low temperatures.

Original languageEnglish
Pages (from-to)297-304
Number of pages8
JournalInternational Journal of Food Science and Technology
Issue number2
Publication statusPublished - Feb 2011

Other keywords

  • Fresh fish supply chain
  • Kinetic model
  • Non-isothermal condition
  • Temperature history
  • Time-temperature indicator


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