engleski

Screening of pesticide content in a traditional apple cultivars from Croatian market

Apples and apple-based products are among the most popular foods around the world. However, such products are susceptible to infection with the fungi or different plant diseases. To avoid apple quality reduction caused by abovementioned factors, the various pesticides are applied during the growth in the orchards. Traditional apple varieties grown in local areas have so far been largely unexplored considering pesticides concentrations. In this study, the pesticide concentrations of traditional apple cultivars from Croatian market were determined and quantified by LC-MS/MS. Results showed presence of azoxystrobin fungicide in seven of 13 examined cultivars. Detected concentration are in the range from 1.50 (‘Božićnica’) up to 1.70 µg/kg (‘Kraljevčica’, ‘Bobovac’ and ‘Adamčica’). Such low detected concentrations, usually applied for protecting plants and food crops from foliar and soil-borne fungal diseases (wheat septoria, septoria leaf spot, wheat leaf rust (Puccinia recondita), rye leafrust (Puccinia triticina), powdery mildew, downy mildew, stripe rust, haustorium, Pyrenophora teres, etc.), imply that these traditional cultivars are grown nearby crops or vineyard of the orchard of commercially cultivated apple cultivars. However, based on the apparent absence of a great need for pesticide application, these varieties seem to be an important source of bioactive compounds and to form the basis for further cultivation ; but all after further research has been carried out.

traditional apple cultivars ; Croatian market ; pesticides ; LC-MS/MS

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