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PH

It is a measure of the acidity or alkalinity of a solution. PH 7 is neutral, and the pH of very pure water. A solution with a pH less than 7 is acidic, and one with pH above 7 is alkaline. The pH of fish muscle in live fish is around 7. 2; after the death of the animal and resolution of rigour mortis, the typical pH of most species of fish drops to between 6. 4 and 6. 9. In some species, for example, tunas, salmon, some species of halibut, the pH drops to 6 or lower. The pH of stored fish tends to rise as amines are formed during spoilage.

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  • Industry/Domain: Fishing
  • Category: Fish processing
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