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Open AccessArticle

Absence of Cyanotoxins in Llayta, Edible Nostocaceae Colonies from the Andes Highlands

1
Laboratorio de Bioquímica, Departamento Biomédico, Facultad Ciencias de la Salud, and Centre for Biotechnology and Bioengineering, CeBiB, Universidad de Antofagasta, Antofagasta 1270300, Chile
2
Centro Interdisciplinar de Investigação Marinha e Ambiental- CIIMAR, 4450-208 Matosinhos, Portugal
3
Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
*
Author to whom correspondence should be addressed.
Toxins 2020, 12(6), 382; https://doi.org/10.3390/toxins12060382
Received: 8 April 2020 / Revised: 25 May 2020 / Accepted: 5 June 2020 / Published: 9 June 2020
(This article belongs to the Special Issue Freshwater Algal Toxins: Monitoring and Toxicity Profile)
Edible Llayta are cyanobacterial colonies consumed in the Andes highlands. Llayta and four isolated cyanobacteria strains were tested for cyanotoxins (microcystin, nodularin, cylindrospermopsin, saxitoxin and β-N-methylamino-L-alanine—BMAA) using molecular and chemical methods. All isolates were free of target genes involved in toxin biosynthesis. Only DNA from Llayta amplified the mcyE gene. Presence of microcystin-LR and BMAA in Llayta extracts was discarded by LC/MS analyses. The analysed Llayta colonies have an incomplete microcystin biosynthetic pathway and are a safe food ingredient. View Full-Text
Keywords: cyanobacteria; cyanotoxins; Llayta; microcystin; Nostoc cyanobacteria; cyanotoxins; Llayta; microcystin; Nostoc
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Galetović, A.; Azevedo, J.; Castelo-Branco, R.; Oliveira, F.; Gómez-Silva, B.; Vasconcelos, V. Absence of Cyanotoxins in Llayta, Edible Nostocaceae Colonies from the Andes Highlands. Toxins 2020, 12, 382.

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