Identification of fish species and toxins implicated in a snapper food poisoning event in Sabah, Malaysia, 2017

Dao, Ha Viet and Uesugi, Aya and Uchida, Hajime and Watanabe, Ryuichi and Matsushima, Ryoji and Lim, Zhen Fei and Jipanin, Steffiana J. and Pham, Ky Xuan and Phan, Minh-Thu and Leaw, Chui Pin and Lim, Po Teen and Suzuki, Toshiyuki (2021) Identification of fish species and toxins implicated in a snapper food poisoning event in Sabah, Malaysia, 2017. Toxins, 13 (9). ISSN 2072-6651, DOI https://doi.org/10.3390/toxins13090657.

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Abstract

In the coastal countries of Southeast Asia, fish is a staple diet and certain fish species are food delicacies to local populations or commercially important to individual communities. Although there have been several suspected cases of ciguatera fish poisoning (CFP) in Southeast Asian countries, few have been confirmed by ciguatoxins identification, resulting in limited information for the correct diagnosis of this food-borne disease. In the present study, ciguatoxin-1B (CTX-1B) in red snapper (Lutjanus bohar) implicated in a CFP case in Sabah, Malaysia, in December 2017 was determined by single-quadrupole selected ion monitoring (SIM) liquid chromatography/mass spectrometry (LC/MS). Continuous consumption of the toxic fish likely resulted in CFP, even when the toxin concentration in the fish consumed was low. The identification of the fish species was performed using the molecular characterization of the mitochondrial cytochrome c oxidase subunit I gene marker, with a phylogenetic analysis of the genus Lutjanus. This is the first report identifying the causative toxin in fish-implicated CFP in Malaysia.

Item Type: Article
Funders: Vietnam Academy of Science and Technology key project [Grant No: TDDTB0.01/21-23]
Uncontrolled Keywords: Ciguatera fish poisoning (CFP); Ciguatoxin-1B (CTX-1B); LC; MS; Red snapper; Malaysia
Subjects: Q Science > Q Science (General)
Q Science > QR Microbiology
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences
Depositing User: Ms Zaharah Ramly
Date Deposited: 26 May 2022 02:20
Last Modified: 26 May 2022 02:20
URI: http://eprints.um.edu.my/id/eprint/34511

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