بررسي ميزان هيستامين به روش اليزا در تن ماهي زرد باله صيد شده از آبهاي جنوبي ايران

Survey of histamine content by ELIZA method in yellowfin tuna (Thunnus albacores) obtained from the south of Iran

Histamine poisoning, one of the most common sea foodborn disease in the world wide, is caused by biogenic amines. Histamine, one of the biogenic amines, is present in spoiled Scombroid fish such as yellowfin tuna which contain usually high levels of free histidine. Measurement of histamine in food is very important; it has a great significance in food as a freshness or spoilage indicator. The aim of this study was measurement of histamine in yellowfin tuna (Thunnus albacores) were collected from Oman Sea waters to determine of its toxicity. 30 fresh fish were obtained and the amounts of histamine were measured from the muscle around the gills by ELIZA method. The obtained results indicated that the minimum, maximum and mean of histamine contents were 0.4, 12.8 and 1.91ppm, respectively. Histamine levels were well below the recommended maximum value, which validates the recommended USFDA guidelines. Therefore, there is no histamine poisoning risk in the examined fish.