Prawns... Food Poisoning
Discussion
I believe there is a bacteria in king prawns, I think it is the coloured bit that runs down the back, I am pretty sure some are frozen in sulphites to kill this off. I feed them to my stingray and was advised to thoroughly wash this off to remove the sulphites (microwave may not remove it)
Also the fresh fish counter at big supermarkets is often already frozen once and should not be re-frozen....where did your prawns come from?
Also the fresh fish counter at big supermarkets is often already frozen once and should not be re-frozen....where did your prawns come from?
Abstract
The contents of total sulphite in frozen prawns and shrimps were determined by the Monier–Williams procedure. The use of sulphites could be breaching legislative limits since the residues in the edible parts of some frozen prawns and shrimps samples were found to be higher than 150 mg SO2 per kg (maximum concentration admitted in the edible parts for these fresh and frozen products according to the current legislation). The non-edible parts presented much higher concentrations.
The contents of total sulphite in frozen prawns and shrimps were determined by the Monier–Williams procedure. The use of sulphites could be breaching legislative limits since the residues in the edible parts of some frozen prawns and shrimps samples were found to be higher than 150 mg SO2 per kg (maximum concentration admitted in the edible parts for these fresh and frozen products according to the current legislation). The non-edible parts presented much higher concentrations.
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