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LC/MS Analysis of Tetrodotoxin and Its Deoxy Analogs in the Marine Puffer Fish Fugu niphobles from the Southern Coast of Korea, and in the Brackishwater Puffer Fishes Tetraodon nigroviridis and Tetraodon biocellatus from Southeast Asia

1
Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
2
Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Gyeongnam 650-160, Korea
*
Author to whom correspondence should be addressed.
Mar. Drugs 2010, 8(4), 1049-1058; https://doi.org/10.3390/md8041049
Received: 9 February 2010 / Revised: 23 March 2010 / Accepted: 29 March 2010 / Published: 31 March 2010
(This article belongs to the Special Issue Tetrodotoxin 2011)
Tetrodotoxin (TTX) and its deoxy analogs, 5-deoxyTTX, 11-deoxyTTX, 6,11-dideoxyTTX, and 5,6,11-trideoxyTTX, were quantified in the tissues of three female and three male specimens of the marine puffer fish, Fugu niphobles, from the southern coast of Korea, and in the whole body of the brackishwater puffer fishes, Tetraodon nigroviridis (12 specimens) and Tetrodon biocellatus (three specimens) from Southeast Asia using LC/MS in single ion mode (SIM). Identification of these four deoxy analogs in the ovarian tissue of F. niphobles were further confirmed by LC/MS/MS. TTX and 5,6,11-trideoxyTTX were detected in all three puffer fish species as the major TTX analogs, similar to Japanese Fugu pardalis. While 6,11-dideoxyTTX was also found to be a major analog in almost all tissues of Korean F. niphobles, this analog was minor in the two Tetraodon species and Japanese F. pardalis. Among the tissues of F. niphobles, the concentrations of TTXs were highest in the ovaries (female) and skin (female and male). View Full-Text
Keywords: tetrodotoxin; 6,11-dideoxytetrodotoxin; puffer fish; LC/MS; LC/MS/MS tetrodotoxin; 6,11-dideoxytetrodotoxin; puffer fish; LC/MS; LC/MS/MS
MDPI and ACS Style

Jang, J.-H.; Lee, J.-S.; Yotsu-Yamashita, M. LC/MS Analysis of Tetrodotoxin and Its Deoxy Analogs in the Marine Puffer Fish Fugu niphobles from the Southern Coast of Korea, and in the Brackishwater Puffer Fishes Tetraodon nigroviridis and Tetraodon biocellatus from Southeast Asia. Mar. Drugs 2010, 8, 1049-1058.

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