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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/38541

Title: Toxin and species identification of toxic octopus implicated into food poisoning in Taiwan
Authors: Ya-Jung Wu
Chun-Lan Lin
Chien-Hung Chen
Cheng-Hong Hsieh
Hsiao-Chin Jen
Shi-Jie Jian
Deng-Fwu Hwang
Contributors: 國立臺灣海洋大學:食品科學系
Keywords: Octopus aegina
Tetrodotoxin (TTX)
High-performance liquid chromatography with tandem mass spectrometry (LC-MS/MS)
Blue-ringed octopus
Hapalochlaena fasciata
Date: 2014-12
Issue Date: 2016-10-04T08:44:13Z
Publisher: Toxicon
Abstract: Abstract: A food poisoning incident due to ingestion of unknown octopus occurred in Taipei in December, 2010. The serum and urine from victims (male 38 and 43 years old) were collected, determined the toxicity, and identified tetrodotoxin (TTX) by high-performance liquid chromatography with tandem mass spectrometry (LC-MS/MS). It was found that only urine contained the trace of TTX. Then, two retained specimen (one without blue ring in the skin and another with small blue ring in the skin) were collected from victims and examined for the toxicity and toxin. Meanwhile, 6 specimens of octopus without blue ring in the skin and 4 specimens of octopus with blue ring in the skin were re-collected from the market. Both retained octopus samples were found to contain TTX. However, re-collected market's octopus without blue ring in the skin did not show to contain TTX the and was identified as Octopus aegina by using the analysis of cytochrome b gene (Cyt b) and cytochrome c oxidase subunit I gene (COI). Only octopus with blue ring in the skin contained TTX and was identified as Hapalochlaena fasciata by using the analysis of Cyt b and COI. Therefore, this octopus food poisoning was caused by toxic octopus H. fasciata and the causative agent was TTX.
Relation: 91
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/38541
Appears in Collections:[食品科學系] 期刊論文

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