Journal
TRENDS IN FOOD SCIENCE & TECHNOLOGY
Volume 50, Issue -, Pages 85-102Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2016.01.021
Keywords
Optical oxygen sensors; Phosphorescence lifetime based oxygen sensing; Disposable sensors; Non-destructive analysis; Food and beverage packaging; MAP foods; Residual oxygen; High throughput analysis; Food safety; Quality assurance
Categories
Funding
- Irish Department of Agriculture, Food and Marine [DAFM/11/F/015]
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Intelligent and active packaging technologies have gained attention in recent time due to increased demand by the consumers and manufacturers for sustaining the quality and safety of food products, improved shelf-life as well as real time monitoring of the packaging, storage and handling processes. In this context, phosphorescence based sensors for molecular oxygen (O-2) are important tools for monitoring of packaged products, new product development and optimisation. They allow fast, reversible, real-time and quantitative monitoring of residual O-2 levels in a non-destructive manner, being superior over alternative systems. In this review, we describe the main types of phosphorescent O-2-sensitive materials, fabrication methods and general requirements for sensors for food packaging applications. The main developments and representative examples are provided which illustrate the application of such sensors for monitoring of gaseous and dissolved O-2 in various types of packaged foods and beverages. We also compare commercial O-2 sensing instrumentation and disposable O-2 sensors currently in use. (C) 2016 Elsevier Ltd. All rights reserved.
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