Detection of the Potential Inactivation of Tetrodotoxin by Lactic Acid Bacterial Exopolysaccharide
Department of Biotechnology, School of Biotechnology, Hochiminh City International University, Vietnam National University-Hochiminh City, Quarter 6, Linh Trung Ward, Thu Duc District, Hochiminh 700000, Vietnam
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Toxins 2018, 10(7), 288; https://doi.org/10.3390/toxins10070288
Received: 8 June 2018
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Revised: 2 July 2018
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Accepted: 2 July 2018
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Published: 12 July 2018
(This article belongs to the Special Issue Tetrodotoxins)
Screening for compounds that can neutralize the toxicity of tetrodotoxin (TTX) or reduce its negative effects is necessary. Our study tested the TTX detoxification capacity of exopolysaccharide (EPS) extracted from lactic acid bacteria. EPS of Leuconostoc mesenteroides N3 isolated from the Vung Tau sea (Vietnam), Lactobacillus plantarum PN05, and Lactobacillus rhamnosus PN04 were used in the study. To more completely evaluate the importance of EPS in detoxification, EPS samples of Leuconostoc mesenteroides N3, Lactobacillus plantarum PN05 and Lactobacillus rhamnosus PN04 were also tested. The majority of EPS of these bacteria contained glucose; this was observed using thin layer chromatography (TLC) and high-performance liquid chromatography (HPLC) analysis. As observed with FTIR analysis, only EPS of Lactobacillus plantarum PN05 contained methyl groups. The results indicated that detoxification of TTX in mice could be obtained at an optimal dose of 248 µg EPS from Leuconostoc mesenteroides incubated with 54 µg cuprous oxide for 40 min or 148 µg EPS Lactobacillus rhamnosus incubated with 55 µg cuprous oxide for 40 min, while EPS from Lactobacillus plantarum showed TTX detoxification capacity without cuprous oxide combination. Consequently, EPS from Lactobacillus plantarum PN05 can be used in TTX prevention. This is the first report on the importance of lactic acid bacteria in TTX detoxification.
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MDPI and ACS Style
Tu, N.H.K.; Dat, N.V.; Canh, L.V.; Vinh, D.T.T. Detection of the Potential Inactivation of Tetrodotoxin by Lactic Acid Bacterial Exopolysaccharide. Toxins 2018, 10, 288. https://doi.org/10.3390/toxins10070288
AMA Style
Tu NHK, Dat NV, Canh LV, Vinh DTT. Detection of the Potential Inactivation of Tetrodotoxin by Lactic Acid Bacterial Exopolysaccharide. Toxins. 2018; 10(7):288. https://doi.org/10.3390/toxins10070288
Chicago/Turabian StyleTu, Nguyen H.K., Nghe V. Dat, Le V. Canh, and Doan T.T. Vinh. 2018. "Detection of the Potential Inactivation of Tetrodotoxin by Lactic Acid Bacterial Exopolysaccharide" Toxins 10, no. 7: 288. https://doi.org/10.3390/toxins10070288
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