Un estudio detecta micotoxinas en horchata comercializada

Título: Presence of Fusarium emerging mycotoxins in tiger-nuts commercialized in Spain

Resumen :

Tiger-nuts are tubers from the plant Cyperus esculentus which are commercialized in some regions of West and Central Africa, USA and Spain. These tubers have a high microbial charge such as bacteria, moulds and yeasts which could remain until the finished product. In this study we examined 47 samples of tiger-nut tubers purchased from Spanish supermarkets for contamination with the emerging Fusarium mycotoxins: Enniatins ENs (EN A, EN A(1), EN B and EN B-1), beauvericin (BEA) and fusaproliferin (FUS). The extraction of the samples was carried out with methanol using an Ultraturrax homogenizer. Mycotoxins were analyzed with a liquid chromatography (LC) coupled to a diode array detector (DAD).

The percentage of contaminate samples with one or more emerging mycotoxins was 21.3%. EN A(1) result the most common EN found with the highest prevalence of 17% with levels ranging from 32.3 to 4400 [mu g/g. EN B-1 and BEA were present simultaneously in 5 samples, whereas the maximum contamination observed of the EN B-1 was of 346 mu g/g. The lowest incidence were observed for the ENs A and B evidenced only in one sample of the total studied. Only one emerging mycotoxin, fusaproliferin (FUS), has not been detected in any sample studied.

Autores : Sebastia, N.; Meca, G.; Soriano, J.M.; Manes, J.

Direcciones :

Universidad de Valencia, Facultad de Farmacia, departamento de Medicina Preventiva y Salud Pública (España)