Spoilage of Fish in the Vessels at Sea: 3. The Value of Nitrite Ice and Nitrite Dips for the Preservation of Gutted Fish in the Hold of the Vessel

Abstract

Sodium nitrite, used as a 1% dip, or as a 0.1% solution made into flake ice, has been used with gutted cod and haddock in trawlers under normal fishing conditions. The dipping was more effective in preserving the fish than storing them in the ice containing nitrite. Dipping added about 4 days to the keeping time of the fish in the boats at sea.There appears to be little or no advantage in using nitrite either as a dip or in ice with fish that are properly iced and not stored longer than 6 days.