Effects of washing treatments on pesticide residues in agricultural products

Tiryaki O., Polat B.

Gıda ve yem bilimi-teknolojisi dergisi, no.29, pp.1-11, 2023 (Peer-Reviewed Journal)

  • Publication Type: Article / Review
  • Publication Date: 2023
  • Journal Name: Gıda ve yem bilimi-teknolojisi dergisi
  • Journal Indexes: TR DİZİN (ULAKBİM)
  • Page Numbers: pp.1-11
  • Çanakkale Onsekiz Mart University Affiliated: Yes


Objective: In recent years, besides the analysis of pesticide residues in fresh fruit and vegetables, researches have also been carried out on residue removal or reduction rates on different agricultural commodities. Farmers prefer various food-processing methods when they experience problems in marketing or when they wish to have value-added. In this sense, it is important to know the fate of pesticides after processing. Washing, peeling, drying and processing into fruit juice are the most common processing methods applied to fruits. In this study, it is aimed to compile information about the effects of various washing methods on pesticide residue removal or reduction rates and the factors (pesticide water solubility and mode of action, preharvest intervals, type, and duration of washing) affecting such removal or reduction rates.

Conclusion: There are various washing processes for the removal of pesticides from agricultural commodities. Washing usually reduces pesticide residues. Washing with non-toxic acidic solutions, ozonated water, and ultrasonic cleaning have been found to be more effective than washing with tap water. The most important factors affecting washing processes were identified as pesticide water solubility and mode of action. Since field-spraying allows the pesticides to penetrate into biologically active plant parts, field-sprayed samples should be used in washing processes. In this review study, the necessity of washing fruits and vegetables before consumption was pointed out once again.