Community Research and Development Information Service - CORDIS

Testing of samples from organically grown carrots and of carrot containing products

The testing of samples from organically grown carrots and of carrot containing products, such as baby food and vegetable juices, showed absence of A. alternata mycotoxins and sporadically presence of A. radicina toxins. A total of 356 carrot samples have been analysed by HPLC for their Alternaria toxins content. These samples included 266 carrot samples from different cultivars (Tempo, Royal Chantenay Rola, Kira, Nanco, Aston) produced in France, The Netherlands and Denmark in two consecutive seasons under organic conditions and collected at harvesting and during storage, and 87 carrot-based commercial products (soups, vegetable sauces, carrot puree, whole canned baby carrots, vacuum-packed sliced carrots, pudding, baby foods) collected in France, The Netherlands, Denmark, Poland and Italy. Out of 356 samples, six samples belonging to stored carrot samples and showing rot symptoms, were found contaminated with either epi-radicinol, radicinin and radicinol whereas no A. alternata mycotoxins were found in any tested samples. Although Alternaria alternata has been frequently found in organic carrots none of the mycotoxins produced by this fungus were detected in carrot roots or in carrot commercial products. These samples were also analysed for their 6-methoxymellein (6-MM)content. Levels of 6-MM in carrot samples and carrot based products were generally below or rarely close to the "just noticeable difference" level for this compound (48-71µg/g). In particular 6-MM was found in 69% of 356 tested samples at levels ranging from 0.14 to 76µg/g in fresh carrots and from 0.04 to 15.64µg/g in processed carrot products. These levels of 6-MM does not represent a problem for the consumers in terms of sensory quality.

Reported by

CNR Institute of Sciences of Food Production (ISPA)
Via Amendola 122/O
70125 BARI
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