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Proceedings Paper

Smart packaging for the monitoring of fish freshness
Author(s): Alexis Pacquit; King Tong Lau; Dermot Diamond
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Paper Abstract

The development of chromo-reactive sensor spots for real time monitoring of fish freshness is described. The on-package sensor spots incorporating an immobilized pH sensitive dye, respond through visible colour change to basic volatile spoilage compounds collectively known as Total Volatile Basic Nitrogen (TVB-N). Trials on fresh fish filets have verified that the sensor can be employed for real time monitoring of fish spoilage. The sensor response can be interrogated with a simple, inexpensive reflectance colorimeter that we have developed based on two LEDs and a photodetector.

Paper Details

Date Published: 3 June 2005
PDF: 6 pages
Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); doi: 10.1117/12.605531
Show Author Affiliations
Alexis Pacquit, Dublin City Univ. (Ireland)
King Tong Lau, Dublin City Univ. (Ireland)
Dermot Diamond, Dublin City Univ. (Ireland)


Published in SPIE Proceedings Vol. 5826:
Opto-Ireland 2005: Optical Sensing and Spectroscopy
Gerard D. O'Sullivan; Hugh James Byrne; Enda McGlynn; Alan G. Ryder; Brian D. MacCraith, Editor(s)

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