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Detection of tetrodotoxin and saxitoxin in dried salted yellow puffer fish (Xenopterus naritus) eggs from Satok Market, Kuching, Sarawak

 
 
10 February 2015-Abstract: The detection of tetrodotoxin (TTX) and saxitoxin (STX) in dried salted yellow puffer fish (Xenopterus naritus) eggs bought from Satok Market, Kuching, Sarawak was carried out by mouse bioassay method. The amount of TTX and STX detected in the samples ranged from 95.6-195.5 Mouse Unit (MU)/g and 1.72-3.58 MU/g respectively. The results indicate that the dried salted eggs samples were found to contain TTX 9-20 times above the regulatory limit for human consumption (10 MU/g). Although detected, the amount of STX in salted eggs extract was slightly below the accepted threshold limit (4 MU/g). The local public in Sarawak should be educated on the potential danger of consuming dried salted puffer fish eggs in addition to the current warnings on puffer fish.