Pesticide residues in Greek apples with protected geographical indication or designation of origin

Abstract

Eighty apple samples with protected geographical indication (PGI) or designation of origin (PDO) were analyzed for 51 target pesticides using the "quick, easy, cheap, effective, rugged and safe" (QuEChERS) method. Accuracy and precision were evaluated by means of recovery experiments at four concentration levels (10-250 µg/kg). Twelve pesticide residues were detected in 75 positive samples with an average number of detected pesticides per sample equal to 6.0. The highest detection rates were observed for chlorpyrifos (n=75), quinalphos (n=75) and parathion (n=73). Only 2 of the 80 investigated samples contained pesticide residues (parathionmethyl) in levels exceeding the maximum residue limits (MRLs). According to Spearman correlation analysis, the most powerful correlations were obtained between α-endosulfan and β-endosulfan (r=0.823) and between flufenoxuron and penconazole (r=0.683). Principal component analysis revealed similarities in the pesticides levels of all PDO/PGI samples, while the kind of product also significantly impacts its residue content.

Key Result Objectives in Geographical Indications:

“…In cluster 8 "Productive characteristics in geographical indications ", studies on the characteristics of oils, fraud prevention, the search for higher productivity of processes in geographical indications and quality management in the production process predominate (LIKUDIS et al, 2014;LASTRA-MEJÍAS et al, 2019;ALBUQUERQUE et al, 2019;APARICIO-RUIZ et al, 2022).…”

Effect of Sustainable Preharvest and Postharvest Techniques on Quality and Storability of High-Acidity ‘Reinette du Canada’ Apple

“…PDO/PGI (Protected Geographical Indication) agricultural products are exported to numerous countries in Europe, Asia and the Americas [8]. Fruit quality in products under a PDO label should be ensured throughout the storage period, since apples are rarely consumed directly when harvested, but are usually stored for periods of up to 6 months to ensure a steady, year-round supply of high-quality fruit [4,9].…”