Effects of Types of Washing and Peeling in Relation to Pesticide Residues in Tomatoes

Journal of the Brazilian Chemical Society

Graziela C. R. M. Andrade¹  Sérgio H. Monteiro¹  Jeane G. Francisco¹  Leila A. Figueiredo¹  Aderbal A. Rocha¹  Valdemar L. Tornisielo¹ 

关键词: QuEChERS;    washing procedure;    peeling;    LC-MS/MS;   

DOI  :  10.5935/0103-5053.20150179

来源: SciELO

【 摘 要 】

Tomatoes are widely consumed and most often without cooking, therefore it is important to estimate the reduction of residues using simple washing procedures. An experiment was carried out to evaluate the effects of household processing such as: washing with water, washing with 10% of vinegar solution and washing with 10% of sodium bicarbonate solution on pesticide residue levels of acetamiprid, azoxystrobin, diflubenzuron, dimethoate, fipronil, imidacloprid, procymidone and thiamethoxam, in spiked tomato samples. The amount of residue remaining in the peel and pulp was also investigated. The pesticide residues were monitored using the quick, easy, cheap, effective, rugged and safe (QuEChERS) extraction and analysed by liquid chromatography tandem mass spectrometry method (LC-MS/MS) in dynamic multiple-reaction monitoring mode (DMRM). The effect of the number of washing treatments (n = 3) and control, with six replicates, differed significantly for all pesticides evaluated (n = 8), but despite washing, fipronil residues were not removed from the tomato samples. Overall, washing with water or other solutions, and peeling before consumption are shown to reduce pesticide residues in tomatoes.

【 授权许可】

CC BY   
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