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Related Experiment Videos

Oxygen indicators and intelligent inks for packaging food.

Andrew Mills1

  • 1Department of Pure & Applied Chemistry, University of Strathclyde, Glasgow, UK. a.mills@strath.ac.uk

Chemical Society Reviews
|November 15, 2005
PubMed
Summary

Optical oxygen sensors are crucial for modified atmosphere food packaging (MAP). This review details ideal sensor properties and assesses current technologies for MAP applications, benefiting industry and researchers.

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Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Food Science

Background:

  • Modified atmosphere food packaging (MAP) utilizes gas flushing to extend shelf life.
  • Accurate oxygen detection is vital for maintaining MAP integrity and food quality.
  • Optical sensors offer a promising, non-invasive method for oxygen monitoring in MAP.

Purpose of the Study:

  • To review the ideal characteristics of optical oxygen sensors for MAP.
  • To compare existing oxygen optical sensor technologies against these ideal properties.
  • To assess the latest advancements and potential applications of these sensors in MAP.

Main Methods:

  • Literature review of optical oxygen sensing technologies.
  • Analysis of sensor properties relevant to MAP environments (e.g., sensitivity, response time, stability).

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  • Comparative assessment of different indicator types and their underlying technologies.

    • Main Results:

    • Identification of key performance metrics for MAP oxygen sensors.
    • Evaluation of various optical sensor technologies, including luminophores and colorimetric indicators.
    • Discussion of recent technological progress and challenges in sensor development for MAP.

    Conclusions:

    • Optical oxygen sensors are highly suitable for MAP applications.
    • Further development is needed to optimize sensors for specific MAP conditions.
    • This review provides a guide for selecting and developing sensors for the MAP industry.