Next Article in Journal
Theoretical Investigations of the Interaction of Gaseous Pollutants Molecules with the Polyacrylonitrile Surface
Previous Article in Journal
From Batch to Flow Stripping Analysis with Screen-Printed Electrodes: A Possible Way to Decentralize Trace Inorganic Analysis
Article Menu

Export Article

Open AccessFeature PaperArticle
Chemosensors 2018, 6(3), 38; https://doi.org/10.3390/chemosensors6030038

Stability and Safety Assessment of Phosphorescent Oxygen Sensors for Use in Food Packaging Applications

1
School of Biochemistry and Cell Biology, University College Cork, Cavanagh Pharmacy Building, College Road, Cork T12 K8AF, Ireland
2
Department of Food Science and Nutrition, University College Cork, College Road, Cork T12 K8AF, Ireland
*
Author to whom correspondence should be addressed.
Received: 27 July 2018 / Revised: 31 August 2018 / Accepted: 5 September 2018 / Published: 6 September 2018
(This article belongs to the Special Issue Optical Chemosensors and Biosensors)
Full-Text   |   PDF [2702 KB, uploaded 6 September 2018]   |  

Abstract

Five types of new solid-state oxygen sensors, four based on microporous polypropylene fabric materials and one on polyphenylene sulphide films impregnated with phosphorescent platinum(II)-benzoporphyrin dye, were tested for their stability and safety in food packaging applications. All these sensors exhibit useful optical signals (phosphorescence lifetime readout) and working characteristics and are simpler and cheaper to produce and integrate into standard packaging materials than existing commercial sensors. When exposed to a panel of standard food simulants and upon direct contact with raw beef and chicken meat and cheddar cheese samples packaged under modified atmosphere, the sensors based on ungrafted polypropylene fabric, impregnated with PtBP dye by the swelling method, outperformed the other sensors. The sensors are also stable upon storage under normal atmospheric conditions for at least 12 months, without any significant changes in calibration. View Full-Text
Keywords: optical oxygen sensors; phosphorescent materials; modified atmosphere packaging; MAP; residual and headspace oxygen; non-destructive control; stability testing optical oxygen sensors; phosphorescent materials; modified atmosphere packaging; MAP; residual and headspace oxygen; non-destructive control; stability testing
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Kelly, C.A.; Cruz-Romero, M.; Kerry, J.P.; Papkovsky, D.B. Stability and Safety Assessment of Phosphorescent Oxygen Sensors for Use in Food Packaging Applications. Chemosensors 2018, 6, 38.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Chemosensors EISSN 2227-9040 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top