Analysis of T-2 and HT-2 toxin in soybean and soy meal using immunoaffinity clean-up and high performance liquid chromatography

GERMÁN BARROS; DAIANA GARCIA; M. SILVINA OVIEDO; M. LAURA RAMÍREZ; ADRIANA TORRES; SOFÍA CHULZE

Mérida Yucatan

Congreso; VI Congreso Latinoamericano de Micologia; 2010

Soybean (Glycine max L. Merr) is the main source of protein worldwide used both as food and feedstuffs. Hygienic safety of soybean and by-products depends on fungal contamination among other microorganisms. Fusarium rot of soybeans is described in the literature and different Fusarium species have been isolated from this commodity (Pitt & Hocking, 1999). Fusarium species are known to produce a broad spectrum of toxins including type A- and B- trichothecenes. Among A-type trichothecenes, T-2 and HT-2 toxins are relevant mycotoxins produced mainly by F. sporotrichioides, F. poae, F. equiseti, F. acuminatum (Leslie & Summerell, 2006). In a previous study Fusarium species potential mycotoxins producers have been isolated from soybean in Argentina, however limited of information about the occurence of Fusarium mycotoxins in soybean and by-products is available.