Smart packaging for the monitoring of fish freshness

Alexis Pacquit; King Tong Lau; Dermot Diamond

doi:10.1117/12.605531

3 June 2005 Smart packaging for the monitoring of fish freshness

Alexis Pacquit, King Tong Lau, Dermot Diamond

Proceedings Volume 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy; (2005) https://doi.org/10.1117/12.605531
Event: OPTO-Ireland, 2005, Dublin, Ireland

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.

Citation Download Citation

Alexis Pacquit, King Tong Lau, and Dermot Diamond "Smart packaging for the monitoring of fish freshness", Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); https://doi.org/10.1117/12.605531

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