Preliminary study on the use of ozonation for the degradation of dithiocarbamate residues in the fruit drying process: mancozeb residue in blackcurrant is the example used
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University of Rzeszów Faculty of Biology and Agriculture, Ćwiklińskiej 2, 3-601 Rzeszów, Poland
University of Rzeszów Institute of Plant Protection – National Research Institute, Laboratory for Research on Pesticide Residues Gen. M. Langiewicza, 35-101 Rzeszów, Poland
University of Rzeszów Campus branch, Faculty of Biotechnology, Werynia 502, 36-100 Kolbuszowa, Poland
Maciej Balawejder
University of Rzeszów Faculty of Biology and Agriculture, Ćwiklińskiej 2, 3-601 Rzeszów, Poland
Submission date: 2012-10-07
Acceptance date: 2012-12-12
Journal of Plant Protection Research 2013;53(1):48–52
In order to reduce the level of dithiocarbamate fungicide mancozeb residues in blackcurrants, two different ozone treatment procedures were evaluated. The first one entailed washing the plant material with an aqueous solution of ozone. This ozone enriched water solution allowed for a 59% reduction of mancozeb residues, compared with the initial concentration. The latter method was based on the utilization of ozone in a gaseous phase combined with a drying process. In that procedure, samples of blackcurrant fruit were exposed to a 19 ppm ozone concentration, and then the blackcurrants were dried. The utilization of ozone in a gaseous phase permitted a 38% reduction of mancozeb residues, in comparison with the initial concentration. As a result of the combination of both processes; ozonation and drying, a 58% reduction of mancozeb residues was achieved.
The authors have declared that no conflict of interests exist.
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