Cadmium content in Cephalopods
1994
Attaya Kungsuwan | Bodin Ittipong | Pannee Khonchatri (Department of Fisheries, Bangkok (Thailand). Fishery Technological Development Inst.)
Attempts were to monitor the cadmium level in Cephalopods used as raw materials in the frozen factories. The purpose was to obtain general information of possible catching zone of high content including relationship between kind and catch season and the level of content. This would consequently help to reduce the rejection from the importer. In this case, octopus and cuttlefish samples were collected from frozen factories. The catching zone identified were as follows: Eastern (Rayong-Trat), upper (Chumporn-Smutsakhon) and Southern (Nakhonsi-thammarat and vicinity) part of Thai Bay. Each specimen was separately digested as muscle and tentacle using 30 percent nitric and consequently determined cadmium content using flame atomic absorption spectrophotometer as previously reported. The results showed that the cadmium content found in cuttlefish meat from all three areas are at safe level compared to the standard of Italy of 2 ppm. For cuttlefish tentacle, it was found that the sample from the upper Thai bay was at safe level except for the samples from Eastern and Southern areas between June and September that were higher from the standard level. In the case of octopus, the samples from Eastern and Southern areas were found to have cadmium content in meat at safe level, while those from the upper area were higher than standard level around 40 percent of total samples tested. It can be concluded that, cadmium content in cuttlefish and octopus meat are generally at safe level except for few samples from Southern area that high level was found. Further monitoring in this area should be made.
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