Pesticide residues testing of organic vegetables

Abstract

In the Republic of Serbia there is a constant boom of organic farming. At the end of 2013 the organic farming covered 7455 ha out of 238 ha were involved in vegetable growing. The demand for organic products has significantly increased in recent years due to the rising awareness of health food and the protection of consumers and the environment. That is why the analyses of 61 organically produced vegetables were done in 2015. The validated method, based on the QuEChERS, sample preparation for more than 100 compounds with determination by LC-MS/MS were used for the analyses. As a maximum residue level of pesticides we used the orientation value for each pesticide which is 0.01 mg/kg and is applies to the original unprocessed
product (EC 178/2002). Also it is very important to know that in organic products no more than total of two pesticides may be present. No pesticides were found in 63.29% of analysed sampled, while 17.27% were with the pesticide detections below the orientation value. Apart from analytical issues, the relationship between the detected and actual usage of pesticides is not that straightforward. The use of pesticides in organic
production is forbidden and the detected residues, in all probability, come from soil, irrigation or drift.

Full text

International Confrerence
GREDIT 2016
– GREEN DEVELOPMENT,
INFRASTRUCTURE, TECHNOLOGY
BOOK OF ABSTRACTS
Skopje, 31 March – 2 April 2016

GREDIT’2016 – GREEN DEVELOPMENT INFRASTUCTURE TECHNOLOGY
Poster section 2: Agriculture, Agroecology, Food Quality Safety, Public Health –
Environmental Medicine
– 198 –
p2–09
PESTICIDE RESIDUE TESTING OF ORGANIC VEGETABLES
Vojislava Bursić 1, Gorica Vuković2, Tijana Zeremski3, Magdalena
Cara4, Sonja Gvozdenac1, Maja Meseldžija1, Dušan Marinković1
1Faculty of Agriculture, University of Novi Sad,
Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia,
2Institute of Public Health, Bul. despota Stefana 54a, 11000 Belgrade, Serbia,
3Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia,
4Faculty of Agriculture and Environment, Agricultural University of Tirana, Albania
bursicv@polj.uns.ac.rs
ABSTRACT: In the Republic of Serbia there is a constant boom
of organic farming. At the end of 2013 the organic farming covered 7455
ha out of 238 ha were involved in vegetable growing. The demand for
organic products has significantly increased in recent years due to the
rising awareness of health food and the protection of consumers and the
environment. That is why the analyses of 61 organically produced
vegetables were done in 2015. The validated method, based on the
QuEChERS, sample preparation for more than 100 compounds with
determination by LC-MS/MS were used for the analyses. As a maximum
residue level of pesticides we used the orientation value for each
pesticide which is 0.01 mg/kg and is applies to the original unprocessed
product (EC 178/2002). Also it is very important to know that in organic
products no more than total of two pesticides may be present. No
pesticides were found in 63.29% of analysed sampled, while 17.27%
were with the pesticide detections below the orientation value. Apart from
analytical issues, the relationship between the detected and actual usage
of pesticides is not that straightforward. The use of pesticides in organic
production is forbidden and the detected residues, in all probability, come
from soil, irrigation or drift.
Key words: Pesticide residue, organic vegetables