DSP toxins, so named because of their ability to induce gastrointestinal disorders in humans, are a group of 1 polyether carboxylic acids. The first DSP toxin to be identified was dinophysis toxin, then Okadaic acid from blue mussels and dinophysis toxin-3, a mixture of unsaturated fatty acid esters of DTX-1, has been isolated from the digestive gland of scallop.
Symptoms: mian cause diarrhea
the food Safety (Live Bivalve Molluscs) REgulations 1993, which incooperates into national law (UK) the requirements of EC Directive 91/492/EEC. Under the regulations, 'the customary biological methods must not give a positive result to the presence of DSP in the edible parts of molluscs'. - which means 0 or absent always
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