Photographs of pork, packaged along with an oxygen smart plastic film. The package was sealed in the absence of oxygen (a) and the indicator activated (b). The lid was then broken and lifted back, and photographed immediately (c), after 1 day (d), 2 days (e) and 4 days (f) in a fridge at 5 degrees Celsius
A sensor that changes colour in the presence of oxygen could be useful in the food packaging industry, according to its UK inventors. The sensor turns blue in excess oxygen, indicating to the consumer that the food should be thrown away.
Interested to know more? Read the full article in Chemistry World here…
Read the paper in full:
An O2 smart plastic film for packaging
A Mills, K Lawrie, J Bardin, A Apedaile, G A Skinner and C O’Rourke
Analyst, 2011,
DOI: 10.1039/c1an15774d
