Journal
TOXINS
Volume 12, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/toxins12060382
Keywords
cyanobacteria; cyanotoxins; Llayta; microcystin; Nostoc
Categories
Funding
- MINEDUC-UA, Universidad de Antofagasta [ANT 1755]
- Proyecto Semillero de Investigacion, Universidad de Antofagasta [2018] [SI-5305]
- CeBiB, CONICYT-Chile [FB-0001]
- CIIMAR [FCT] [UIDB/04423/2020, UIDP/04423/2020]
- CIIMAR [Atlantic Interreg Project-EnhanceMicroAlgae-High added-value industrial opportunities for microalgae in the Atlantic Area] [EAPA_338/2016]
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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 beta-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 themcyE 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.
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