Effects of coconut milk and brown sugar on crude toxins from mussels exposed to Pyrodinium bahamense var. compressa
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During a red tide episode caused by Pyrodinium bahamense var. compressa in Western Samar, Philippines in 1983, those who were taken ill after ingesting the green mussel, Perna viridis , resorted to drinking coconut milk (gata , Pilipino) with brown sugar or unpurified sugar lumps (tagapulot , Pilipino) as a temporary palliative, pending medical attention. Many victims felt relief after the drink. Crude toxins (CT) were extracted from P. viridis exposed to Pyrodinium using 0.1 N HCl and reacted with either or both 5% coconut milk (CM) and 5% brown sugar (BS) for an hour. The CT, CM, BS, CT + CM, CT + BS, and CT + CM + BS were assayed in duplicates for saxitoxin using the standard mouse toxicity test. CT with initial toxicity of 2,114 MU/100 g meat was substantially detoxified after a one-hour reaction. In CT + CM, the toxicity was 664 MU/100 g; in combined CT + CM + BS the toxicity was 1,005 MU/100 g. In medium- (436-563 MU/100 g) and low-toxicity extracts (160-231 MU/100 g) no deaths in mice were recorded within one hour of injection.
Gacutan, R. Q. (1986). Effects of coconut milk and brown sugar on crude toxins from mussels exposed to Pyrodinium bahamense var. compressa. In J. L. Maclean, L. B. Dizon, & L. V. Hosillos (Eds.), The First Asian Fisheries Forum: Proceedings of the First Asian Fisheries Forum, Manila, Philippines, 26-31 May 1986 (pp. 311–313). Manila, Philippines: Asian Fisheries Society.