Removal of Pesticides from Lemon and Vegetables Using Electrolyzed Water Kitchen Devices

Area of Science:

• Food Science
• Environmental Chemistry
• Agricultural Science

Background:

• Pesticide residues on produce pose a significant food safety concern.
• Consumers are increasingly seeking effective and safe methods for residue removal.
• Electrolyzed water devices (EWDs) offer a potential alternative to conventional washing techniques.

Purpose of the Study:

• To evaluate the efficacy of kitchen electrolyzed water devices (EWDs) in removing common pesticide residues from fruits and vegetables.
• To compare the performance of EWDs against traditional water washing methods.

Main Methods:

• Tested three commercial EWDs with varying parameters on lemon, cucumber, and carrot surfaces.
• Quantified the removal of malathion, fenitrothion (water-soluble), and p,p'-DDT (lipophilic) pesticides.
• Compared EWD effectiveness with standard water washing procedures.

Main Results:

• EWDs achieved up to 80% reduction in water-soluble pesticides (malathion, fenitrothion).
• Lipophilic p,p'-DDT removal was less effective, ranging from 20% to 40% reduction with EWDs.
• Traditional water washing demonstrated superior efficacy in removing p,p'-DDT.

Conclusions:

• Kitchen EWDs show promise for reducing certain pesticide residues, particularly water-soluble types.
• Effectiveness varies significantly based on pesticide properties (solubility) and EWD parameters.
• Further research is needed to optimize EWDs for a broader range of pesticides and improve lipophilic residue removal.