Detection of Cyanotoxins in Algae Dietary Supplements

Algae dietary supplements are marketed worldwide as natural health products. Although their proprieties have been claimed as beneficial to improve overall health, there have been several previous reports of contamination by cyanotoxins. These products generally contain non-toxic cyanobacteria, but t...

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Published in:Toxins 2017-02, Vol.9 (3), p.76
Main Authors: Roy-Lachapelle, Audrey, Solliec, Morgan, Bouchard, Maryse F, Sauvé, Sébastien
Format: Article
Language:English
Subjects:
Adult
Alanine
Algae
anatoxin-a
Aphanizomenon
Bacterial Toxins - analysis
BMAA
Child
Chlorides
Contamination
Cultivation
Cyanobacteria
cyanotoxins
Cylindrospermopsin
Dietary supplements
Dietary Supplements - analysis
High performance liquid chromatography
High resolution
Humans
Ions
L-Alanine
LC-HRMS
LDTD
Liquid chromatography
Mass spectrometry
Mass spectroscopy
Microcystins
Natural environment
Natural waters
Oxidation
Pollution control
Quality control
Quantitation
Risk Assessment
Saxitoxin
Spirulina
Toxins
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cited_by cdi_FETCH-LOGICAL-c507t-69c84bd1362e7d46378a8ad185ea2443aee7a74f067f3ef5112fe06dfc5f4203
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creator Roy-Lachapelle, Audrey
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Bouchard, Maryse F
Sauvé, Sébastien
description Algae dietary supplements are marketed worldwide as natural health products. Although their proprieties have been claimed as beneficial to improve overall health, there have been several previous reports of contamination by cyanotoxins. These products generally contain non-toxic cyanobacteria, but the methods of cultivation in natural waters without appropriate quality controls allow contamination by toxin producer species present in the natural environment. In this study, we investigated the presence of total microcystins, seven individual microcystins (RR, YR, LR, LA, LY, LW, LF), anatoxin-a, dihydroanatoxin-a, epoxyanatoxin-a, cylindrospermopsin, saxitoxin, and β-methylamino-l-alanine in 18 different commercially available products containing or . Total microcystins analysis was accomplished using a Lemieux oxidation and a chemical derivatization using dansyl chloride was needed for the simultaneous analysis of cylindrospermopsin, saxitoxin, and β-methylamino-l-alanine. Moreover, the use of laser diode thermal desorption (LDTD) and ultra-high performance liquid chromatography (UHPLC) both coupled to high resolution mass spectrometry (HRMS) enabled high performance detection and quantitation. Out of the 18 products analyzed, 8 contained some cyanotoxins at levels exceeding the tolerable daily intake values. The presence of cyanotoxins in these algal dietary supplements reinforces the need for a better quality control as well as consumer's awareness on the potential risks associated with the consumption of these supplements.
doi_str_mv 10.3390/toxins9030076
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subjects Adult
Alanine
Algae
anatoxin-a
Aphanizomenon
Bacterial Toxins - analysis
BMAA
Child
Chlorides
Contamination
Cultivation
Cyanobacteria
cyanotoxins
Cylindrospermopsin
Dietary supplements
Dietary Supplements - analysis
High performance liquid chromatography
High resolution
Humans
Ions
L-Alanine
LC-HRMS
LDTD
Liquid chromatography
Mass spectrometry
Mass spectroscopy
Microcystins
Natural environment
Natural waters
Oxidation
Pollution control
Quality control
Quantitation
Risk Assessment
Saxitoxin
Spirulina
Toxins
title Detection of Cyanotoxins in Algae Dietary Supplements
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