1
|
Majed L, Hayar S, Dousset S, Maestroni BM, El Omari K. Effect of vine leaves processing on Azoxystrobin, Fenazaquin and Indoxacarb residues dissipation: processing factors and consumer safety assessment. Food Chem 2024; 447:139065. [PMID: 38513485 DOI: 10.1016/j.foodchem.2024.139065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 03/14/2024] [Accepted: 03/16/2024] [Indexed: 03/23/2024]
Abstract
The effect of vine leaves processing techniques on Azoxystrobin, Fenazaquin, and Indoxacarb residues was investigated. Residue extraction following field application of pesticides and leaf processing was carried out using the QuEChERS method, with analysis conducted by LC-MS/MS. In dry conservation, Azoxystrobin's half-life was estimated to exceed a year, Fenazaquin's was 18 days, and Indoxacarb's was 142 days. Azoxystrobin had a half-life of 261 days, Fenazaquin had a half-life of 9 days, and Indoxacarb's half-life exceeded a year in brine conservation. It is recommended to use dry conservation because it results in an average 60 % reduction in residue levels for the three pesticides. Boiling water significantly reduced pesticide residues (Azoxystrobin -40.3 %, Indoxacarb -22.4 %, and Fenazaquin -28.8 %). It is recommended to use boiling water for washing, as it shows an average removal rate of approximately 30 %. The health risk assessment indicated that consuming vine leaves posed no health risk for consumers, but overall exposure to residues must be considered.
Collapse
Affiliation(s)
- Liliane Majed
- Doctoral School of Science and Technology, Platform for Research and Analysis in Environmental Science (EDST-PRASE), Rafik Hariri Campus, Hadath-Baabda, 1003, Lebanon; Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360 Université de Lorraine-CNRS, Bd des Aiguillettes, BP 70239, 54506 Vandœuvre-lès-Nancy, France.
| | - Salem Hayar
- Doctoral School of Science and Technology, Platform for Research and Analysis in Environmental Science (EDST-PRASE), Rafik Hariri Campus, Hadath-Baabda, 1003, Lebanon; Department of Plant Protection, Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh-Matn, 90775, Lebanon.
| | - Sylvie Dousset
- Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360 Université de Lorraine-CNRS, Bd des Aiguillettes, BP 70239, 54506 Vandœuvre-lès-Nancy, France.
| | - Britt Marianna Maestroni
- Food Safety and Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Wagramerstrasse 5, A-1400 Vienna, Austria.
| | - Khaled El Omari
- Quality Control Center Laboratories, Chamber of Commerce, Industry and Agriculture at Tripoli & North Lebanon (CCIAT), Tripoli 1300, Lebanon.
| |
Collapse
|
2
|
Majed L, Hayar S, Zeitoun R, Maestroni BM, Dousset S. The Effects of Formulation on Imidacloprid Dissipation in Grapes and Vine Leaves and on Required Pre-Harvest Intervals under Lebanese Climatic Conditions. Molecules 2021; 27:molecules27010252. [PMID: 35011487 PMCID: PMC8746927 DOI: 10.3390/molecules27010252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022]
Abstract
In this study, imidacloprid, a systemic insecticide, currently having a specified European Commission MRL value for vine leaves (2 mg kg−1), was applied on a Lebanese vineyard under different commercial formulations: as a soluble liquid (SL) and water dispersible granules (WDG). In Lebanon, many commercial formulations of imidacloprid are subject to the same critical good agricultural practice (cGAP). It was, therefore, important to verify the variability in dissipation patterns according to matrix nature and formulation type. Random samplings of grapes and vine leaves were performed starting at 2 days until 18 days after treatment. Residue extractions were performed according to the QuEChERS method and the analytical determination using liquid chromatography coupled to tandem mass spectrometry (LC-MS-MS). The SL formulation yielded significantly higher initial deposit than the WDG formulation on grapes and vine leaves. The formulation type did not significantly affect the dissipation rates; the estimated half-lives in grapes and vine leaves were 0.5 days for all imidacloprid formulations. No pre-harvest intervals were necessary on grapes. PHIs of 3.7 days for the SL formulation and 2.8 days for the WDG formulation were estimated on vine leaves. The results showed that the type of formulation and the morphological and physiological characteristics of the matrix had an effect on the initial deposits, and thus residue levels, but not on the dissipation patterns.
Collapse
Affiliation(s)
- Liliane Majed
- Doctoral School of Science and Technology, Platform for Research and Analysis in Environmental Science (EDST-PRASE), Rafic Hariri Campus, Hadath-Baabda 1003, Lebanon; (L.M.); (R.Z.)
- Laboratoire Interdisciplinaire des Environnements Continentaux, Université de Lorraine–CNRS, Bd des Aiguillettes, BP 70239, 54506 Vandœuvre-lès-Nancy, France;
| | - Salem Hayar
- Doctoral School of Science and Technology, Platform for Research and Analysis in Environmental Science (EDST-PRASE), Rafic Hariri Campus, Hadath-Baabda 1003, Lebanon; (L.M.); (R.Z.)
- Department of Plant Protection, Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh-Matn 90775, Lebanon
- Environmental Health Research Lab (EHRL), Faculty of Sciences, Section V, Lebanese University, Nabatieh 1700, Lebanon
- Correspondence: ; Tel.: +961-03416364
| | - Rawan Zeitoun
- Doctoral School of Science and Technology, Platform for Research and Analysis in Environmental Science (EDST-PRASE), Rafic Hariri Campus, Hadath-Baabda 1003, Lebanon; (L.M.); (R.Z.)
- Environmental Health Research Lab (EHRL), Faculty of Sciences, Section V, Lebanese University, Nabatieh 1700, Lebanon
- Department of Chemistry and Biochemistry, Faculty of Sciences, Section V, Lebanese University, Nabatieh 1700, Lebanon
| | - Britt Marianna Maestroni
- Food and Environmental Protection Laboratory, Joint FAO/IAEA Centre of Nuclear Applications in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Wagramerstrasse 5, A-1400 Vienna, Austria;
| | - Sylvie Dousset
- Laboratoire Interdisciplinaire des Environnements Continentaux, Université de Lorraine–CNRS, Bd des Aiguillettes, BP 70239, 54506 Vandœuvre-lès-Nancy, France;
| |
Collapse
|
3
|
Fahed C, Hayar S. Conventional vs. Organic Cucumber Production in Lebanon: Risk Assessment of the Recommended Agrochemicals on Consumer Health and the Environment. Chemistry Africa 2021. [DOI: 10.1007/s42250-021-00238-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
4
|
Hayar S, Zeitoun R, Maestroni BM. Validation of a Rapid Multiresidue Method for the Determination of Pesticide Residues in Vine Leaves. Comparison of the Results According to the Different Conservation Methods. Molecules 2021; 26:molecules26041176. [PMID: 33671830 PMCID: PMC7927040 DOI: 10.3390/molecules26041176] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 11/16/2022] Open
Abstract
The QuEChERS method was applied to the determination of pesticide residues in vine (Vitis vinifera) leaves by LC-MSMS. The method was validated in-house for 33 pesticides representing 17 different chemical groups, that are most commonly used in grape production. Recoveries for the pesticides tested ranged from 75 to 104%, and repeatability and reproducibility relative standard deviations (RSDr% and RSDRw%) were less than 20%. The method was applied to the analysis of pesticide residues in 17 market brands of vine leaves processed according to three different preservation methods and sampled from the Lebanese market. Dried vine leaves were more contaminated with pesticide residues than those preserved in brine or stuffed vine leaves. The systemic fungicides were the most frequently detected among all the phytosanitary compounds usually applied to grape production. Brine-preserved and stuffed vine leaves contained lower concentrations of the residues but still contained a cocktail of different pesticides.
Collapse
Affiliation(s)
- Salem Hayar
- Doctoral School of Science and Technology, Research Platform for Environmental Sciences (EDST-PRASE), Lebanese University, Rafic Hariri Campus, Hadath-Mount Lebanon, Lebanon
- Department of Plant Protection, Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekweneh-Beirut, Lebanon
- Environmental Health Research Lab (EHRL), Faculty of Sciences, Section V, Lebanese University, Nabatieh, Lebanon;
- Correspondence: ; Tel.: +961-3-416364
| | - Rawan Zeitoun
- Environmental Health Research Lab (EHRL), Faculty of Sciences, Section V, Lebanese University, Nabatieh, Lebanon;
- Department of Chemistry and Biochemistry, Faculty of Sciences, Section V, Lebanese University, Nabatieh, Lebanon
| | - Britt Marianna Maestroni
- Food and Environmental Protection Laboratory, Joint FAO/IAEA Division of Nuclear Applications in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Wagramerstrasse 5, A-1400 Vienna, Austria;
| |
Collapse
|
5
|
Zeitoun R, Hayar S, Majed L, El-Omari K, Dousset S. Comparison of the efficacy of two insecticides for the management of Dactylopius opuntiae on prickly pear cactus in Lebanon and monitoring of the insecticides residues dissipation rates in fruits and cladodes. SN Appl Sci 2019. [DOI: 10.1007/s42452-019-1910-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|