The time delay existing between the chemical oscillation and mechanical oscillation (C-M delay) in a self-oscillating gel (SOG) system is observable in previous experimental studies. However, how the C-M delay...

An electronic nose with electrochemical gas sensors (CO, NH 3 , SO 2 and H 2 S) was used as a rapid technique to monitor changes in the headspace of whole ungutted redfish (Sebastes marinus) stored in ice and under various conditions of modified atmosphere (MA) bulk storage (CO 2 /N 2 :60/40). The precision of the electronic nose measurements was determined using standard compounds (ethanol, trimethylamine, acetaldehyde and dimethyldisulfide). The response of the CO sensor, suggesting the formation of alcohols and carbonyls, increased with time for both ). The redfish storage experiment in this report was a part of the demonstration project funded by the EC (FAIR CT98-3833) called "Implementation on board of systems of atmospheres with variable composition applied to fresh fish. Continuation on shore of the modified atmosphere chain."The evaluation of the precision of the electronic nose measurements reported herein is a part of the project "Precise predictive models to determine the shelflife of fish and fish products" funded by the Icelandic Research Council.

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