Natural occurrence of scirpentriol in cereals infected by Fusarium species
Titel:
Natural occurrence of scirpentriol in cereals infected by Fusarium species
Auteur:
Perkowski, J. Kiecana, I. Stachowiak, J. Basinski, T.
Verschenen in:
Food additives and contaminants. Pt. A, Chemistry, analysis, control, exposure & risk assessment
Paginering:
Jaargang 20 (2003) nr. 6 pagina's 572-578
Jaar:
2003-06
Inhoud:
Wheat, barley and oat grain samples naturally contaminated with Fusarium spp. were analysed for the presence of scirpentriol (STO). This toxin was detected in 1, 37 and 8% of 248 wheat, 32 barley and 99 oat grain samples, respectively, and the maximum concentration was 83 μg kg-1. Samples of wheat and oat grain with visible scab symptoms were also analysed, and STO (mean level 255 μg kg-1) was detected only in oat samples infected with F. sporotrichioides and F. poae as the dominant species. We analysed 15 barley samples that were subdivided based on seed size into fractions of <2.5 and > 2.5 mm in diameter. The smaller kernels contained an average 94% of the STO in the samples (in kernel fraction > 2.5 mm 28 μg kg-1, <2.5 mm 297 μg kg-1). In oats, STO levels were highest in the chaff, lower in the stalk's apical internode and lowest in the grain.