HISTAMINE CONTENT IN TWO TYPES OF FRESH WATER FISH UNDER DIFFERENT STORAGE CONDITIONS

Document Type : Research article

Authors

Abstract

Histamine content was determined in two types of t he fresh water fish (Claris lazera and Tilap < /strong>ia nilotica) by means of fluorometric and pap < /strong>er chromatographic methods. Amounts of histamine between 6 and 456 mg/kg could be detected in fish samples. The highest concentration of histamine was detected in fish stored for two months at 4°C. while the lowest concentration was detected in fish stored at -20°C for only one week. Long periods of storage (2-3 months) at -20 C. produced only a non significant increase in the histamine contnet. It could be concluded that long periods of storage of fish at temperatures more than 4 C. results in the formation of histamine form the already present histidine.