Aufreinigung von Fumonisinen und ihren Hydrolysaten über ein neuartiges Festphasenextraktions-Material

In order to calculate the dietary fumonisin intake of the German consumer, a large survey was carried out on a variety of potentially contaminated products in the period between December 1998 and July 2001. A total of 1960 food samples comprising all known relevant groups of products were analysed for fumonisins. Furthermore, 272 of these samples were also analysed for hydrolysed fumonisins (HFB). For routine analysis enzyme immunoassay was used, confirmatory and control analyses were performed using HPLC-FLD after precolumn derivatisation, or by LC-MS/MS. Daily intake of fumonisins was calculated by combining fumonisin contamination data obtained in this study with available food consumption data for Germany. In a "mean case" scenario, median fumonisin levels in foods and mean food intake values were used. To generate a "bad case" scenario, the 90(th) percentile of fumonisin levels in foods and mean food intake values were combined. The overall daily fumonisin intake by the German consumer was 1.1 μg in the "mean case" scenario, and 21 μg in the "bad case" scenario. It was concluded that in general there is no increased risk for the German consumer in aspects of exceeding the recommended tolerable daily intake of fumonisins (2 μg/kg body weight). However, certain products (and certain brands of products) were repeatedly found to contain elevated fumonisin levels, which in a "worst case" scenario ("high" food intake of maize-based products) could pose a potential risk for the consumer, in particular concerning foods for infants and young children. High fumonisin levels were found in infant foods in 1999, but contamination levels decreased strongly in the following years. HFBs (mostly HFB1) were frequently found in processed cereals such as corn flakes, but in relatively low concentrations. According to our findings, the new European Union maximum levels for fumonisins are suitable to eliminate peak contamination levels of fumonisins in foods, but would lead to a regular excess of the TDI for infants and young children if these maximum levels would indeed be exhausted.

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Fumonisin intake of the German consumer

Zimmer

Usleber

Klaffke

et al. 2008

Mycotox Res

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Aufreinigung von Fumonisinen und ihren Hydrolysaten über ein neuartiges Festphasenextraktions-Material

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Fumonisin intake of the German consumer

Fumonisin intake of the German consumer

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