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Accumulation and depuration of pectenotoxins in brown crab Cancer pagurus

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Abstract

Pectenotoxins (PTXs) are a group of marine algal toxins. In this study, the accumulation and depuration of pectenotoxins in brown crab Cancer pagurus were investigated. Crabs were fed with toxic blue mussels Mytilus edulis for 21 days and then depurated for 42 days. Toxins were extracted with methanol from the digestive glands of contaminated crabs, uncontaminated crabs (control group) and from blue mussels for comparison. Extracts were analyzed by liquid chromatograph coupled with tandem mass spectrometry (LC-MS-MS). The concentrations of PTX-2, PTX-2 SA, 7-epi-PTX-2 SA, and PTX-12 were analyzed in two batches of toxic blue mussels and the crabs. A one-compartment model was applied to describe the depuration of PTXs. The half-life of PTXs was estimated to be 6–7.5 days. After depuration for 42 days, the amount of PTXs measured in the crab digestive glands was less than 1 μg/kg.

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Authors and Affiliations

  1. Yellow Sea Fishery Research Institute, Qingdao, 266071, China

    Li Zhaoxin  (李兆新)

  2. Food technology college, Ocean University of China, Qingdao, 266003, China

    Li Zhaoxin  (李兆新)

  3. Norwegian School of Veterinary Science, P.B. 8146, 0033, Oslo, Norway

    Li Zhaoxin  (李兆新)

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  1. Li Zhaoxin  (李兆新)
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Correspondence to Li Zhaoxin  (李兆新).

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Supported by Norwegian Education Funding “Quata”(2005)

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Zhaoxin, L. Accumulation and depuration of pectenotoxins in brown crab Cancer pagurus . Chin. J. Ocean. Limnol. 27, 389–394 (2009). https://doi.org/10.1007/s00343-009-9109-z

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  • DOI: https://doi.org/10.1007/s00343-009-9109-z

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