Evaluation of pesticide residue dynamics in Chinese cabbage, head cabbage and cauliflower

Pesticide residues from the time of application until harvest were analysed for 20, 17 and 18 active insecticidal and fungicidal substances in Chinese cabbage, head cabbage and cauliflower, respectively. In total, 40 mathematical models of residue degradation were developed using a first-order kinet...

Full description

Saved in:
Bibliographic Details
Published in:Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Chemistry, analysis, control, exposure & risk assessment, 2017-06, Vol.34 (6), p.980-989
Main Authors: Kocourek, František, Stará, Jitka, Holý, Kamil, Horská, Tereza, Kocourek, Vladimír, Kováčová, Jana, Kohoutková, Jana, Suchanová, Marie, Hajšlová, Jana
Format: Article
Language:English
Subjects:
baby food production
Baby foods
Biodegradation
Brassica
Brassica - chemistry
Brassica vegetable
China
Chinese cabbage
Chromatography, High Pressure Liquid
Commodities
Degradation
Food
Food Contamination - analysis
Food safety
Fungicides
Fungicides, Industrial - analysis
Gardens & gardening
half-lives
Lettuce
low-residue production
Mathematical models
Pesticide residues
Pesticide Residues - analysis
Pesticides
pre-harvest interval
Residues
Tandem Mass Spectrometry
Vegetables
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Pesticide residues from the time of application until harvest were analysed for 20, 17 and 18 active insecticidal and fungicidal substances in Chinese cabbage, head cabbage and cauliflower, respectively. In total, 40 mathematical models of residue degradation were developed using a first-order kinetic equation, and from these models it was possible to forecast the action pre-harvest interval for a given action threshold for low-residue production in Brassica vegetables as a percentage of the maximum residue level. Additionally, it was possible to establish an action pre-harvest interval based on an action threshold of 0.01 mg kg ‒1 for the production of Brassica vegetables for baby food. Among the evaluated commodities, the speed of residue degradation was highest in head cabbage, medium in Chinese cabbage and lowest in cauliflower. The half-lives of pesticide in various vegetables were also determined: they ranged from 1.55 to 5.25 days in Chinese cabbage, from 0.47 to 6.54 days in head cabbage and from 1.88 to 7.22 days in cauliflower.
ISSN:1944-0049
1944-0057
DOI:10.1080/19440049.2017.1311419