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Analytical Methods for Pesticide Residues in Foods and Dietary Risk...
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Analytical Methods for Pesticide Residues in Foods and Dietary Risk Assessment

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Quality and Safety".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 5723

Special Issue Editor

Dr. Yanawath Santaladchaiyakit

E-Mail Website
Guest Editor
Department of Chemistry, Rajamangala University of Technology Isan, Khon Kaen Campus, Nakhon Ratchasima, Thailand
Interests: separation techniques; sample preparations; pesticide residue analysis; food analysis

Special Issue Information

Dear Colleagues,

Pesticides are commonly used in agriculture to protect various crops (e.g., fruits, vegetables, cereals, etc.) from insects and fungi. Herbicides, insecticides, fungicides, and rodenticides are typically applied during the pre- or post-harvest stages, but sometimes they are applied at any stage of the process depending on the crop. Widespread uses of these pesticides with overdoses and improper applications are anticipated to be the primary source of contamination, particularly in plants and plant-derived food products; consequently, the pesticide residues may lead to chronic exposure and acute effects on human health. To ensure the health and safety of consumers, effective and reliable analytical methods for monitoring pesticide contaminations at trace levels in foods and dietary products must be developed to be in line with the maximum residue limits (MRLs) for each pesticide in a variety of crops that have been legislated by several organizations.

This Special Issue welcomes original scientific articles and critical reviews involving analytical method development-based chromatography, capillary electrophoresis, and spectrometry combined with suitable sample preparation and preconcentration strategies for the analysis of various pesticide residues in food or dietary samples.

Dr. Yanawath Santaladchaiyakit
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Foods is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • analytical methods
  • chromatography
  • capillary electrophoresis
  • spectrometry
  • sample preparation and preconcentration
  • pesticides
  • food samples
  • dietary samples

Published Papers (3 papers)

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Research

28 pages, 1343 KiB  
Article
Simultaneous Screening of 322 Residual Pesticides in Fruits and Vegetables Using GC-MS/MS and Deterministic Health Risk Assessments
by Byong-Sun Choi, Dong-Uk Lee, Woo-Seong Kim, Chan-Woong Park, Won-Jo Choe and Myung-Jun Moon
Foods 2023, 12(16), 3001; https://doi.org/10.3390/foods12163001 - 09 Aug 2023
Viewed by 1120
Abstract
The development of efficient methods for evaluating pesticide residues is essential in order to ensure the safety and quality of agricultural products since the Republic of Korea implemented the Positive List System (PLS). The objective of this research was to establish a method [...] Read more.
The development of efficient methods for evaluating pesticide residues is essential in order to ensure the safety and quality of agricultural products since the Republic of Korea implemented the Positive List System (PLS). The objective of this research was to establish a method for the simultaneous analysis of 322 pesticide residues in fruits and vegetables (such as coffee, potato, corn, and chili pepper), using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach in combination with gas chromatography-tandem mass spectrometry (GC-MS/MS). This study introduces a robust, high-throughput GC-MS/MS method for screening the target pesticide residues in agricultural products, achieving the PLS criterion of 0.01 mg/kg LOQ. Despite some compounds not aligning with the CODEX recovery guideline, sufficient reproducibility was confirmed, attesting to the method’s applicability in qualitative analyses. A health risk assessment conducted using estimated daily intake/acceptable daily intake ratios indicated low risks associated with product consumption (<0.035391%), thereby confirming their safety. This efficient method holds significant implications for the safe distribution of agricultural products, including during import inspections. Full article
(This article belongs to the Special Issue Analytical Methods for Pesticide Residues in Foods and Dietary Risk Assessment)
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15 pages, 911 KiB  
Article
Residue Analysis and Risk Exposure Assessment of Multiple Pesticides in Tomato and Strawberry and Their Products from Markets
by El-Sayed A. El-Sheikh, Dongyang Li, Ibrahim Hamed, Mohamed-Bassem Ashour and Bruce D. Hammock
Foods 2023, 12(10), 1936; https://doi.org/10.3390/foods12101936 - 10 May 2023
Cited by 11 | Viewed by 2860
Abstract
Pesticides are used on fruit and vegetable crops to obtain greater yield and quality. Residues can be detected in these crops or their products if applied pesticides do not degrade naturally. Therefore, this study aimed to estimate pesticide residues in some strawberry and [...] Read more.
Pesticides are used on fruit and vegetable crops to obtain greater yield and quality. Residues can be detected in these crops or their products if applied pesticides do not degrade naturally. Therefore, this study aimed to estimate pesticide residues in some strawberry and tomato-based products available in the market for human consumption and associated dietary risks. Contamination with 3–15 pesticides in the tested samples was found. The total number of pesticides detected in the tested samples was 20, belonging to the group of insecticides (84%) and fungicides (16%). Pesticides of cypermethrin, thiamethoxam, chlorpyrifos, and lambda-cyhalothrin appeared at 100% in a number of samples, where the most detected was cypermethrin followed by thiamethoxam. The average values of pesticide residues detected in the tested samples ranged from 0.006 to 0.568 mg kg−1, where it was found that cypermethrin had the highest residue value and appeared in strawberry jam obtained from the market. The recovery rate of pesticides from fortified samples with pyrethroids ranged from 47.5% (fenvalerate) to 127% (lambda-cyhalothrin). Home processing of fortified tomato and strawberry samples had a significant effect on reducing residues in tomato sauce and strawberry jam, where the reduction reached 100%. The results of acute and chronic risk assessment showed that their values were much lower than 100%, indicating minimal risk of dietary intake. Full article
(This article belongs to the Special Issue Analytical Methods for Pesticide Residues in Foods and Dietary Risk Assessment)
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14 pages, 3091 KiB  
Article
Computer-Aided Prediction, Synthesis, and Characterization of Magnetic Molecularly Imprinted Polymers for the Extraction and Determination of Tolfenpyrad in Lettuce
by Du Chi, Wei Wang, Shiyin Mu, Shilin Chen and Kankan Zhang
Foods 2023, 12(5), 1045; https://doi.org/10.3390/foods12051045 - 01 Mar 2023
Cited by 4 | Viewed by 1338
Abstract
Tolfenpyrad, a pyrazolamide insecticide, can be effectively used against pests resistant to carbamate and organophosphate insecticides. In this study, a molecular imprinted polymer using tolfenpyrad as a template molecule was synthesized. The type of functional monomer and the ratio of functional monomer to [...] Read more.
Tolfenpyrad, a pyrazolamide insecticide, can be effectively used against pests resistant to carbamate and organophosphate insecticides. In this study, a molecular imprinted polymer using tolfenpyrad as a template molecule was synthesized. The type of functional monomer and the ratio of functional monomer to template were predicted by density function theory. Magnetic molecularly imprinted polymers (MMIPs) were synthesized using 2-vinylpyridine as a functional monomer in the presence of ethylene magnetite nanoparticles at a monomer/tolfenpyrad ratio of 7:1. The successful synthesis of MMIPs is confirmed by the results of the characterization analysis by scanning electron microscopy, nitrogen adsorption–desorption isotherms, Fourier transform infrared spectroscopy, X-ray diffractometer, thermogravimetric analyzer, and vibrational sample magnetometers. A pseudo-second-order kinetic model fit the adsorption of tolfenpyrad, and the kinetic data are in good agreement with the Freundlich isothermal model. The adsorption capacity of the polymer to the target analyte was 7.20 mg/g, indicating an excellent selective extraction capability. In addition, the adsorption capacity of the MMIPs is not significantly lost after several reuses. The MMIPs showed great analytical performance in tolfenpyrad-spiked lettuce samples, with acceptable accuracy (intra- and inter-day recoveries of 90.5–98.8%) and precision (intra- and inter-day relative standard deviations of 1.4–5.2%). Full article
(This article belongs to the Special Issue Analytical Methods for Pesticide Residues in Foods and Dietary Risk Assessment)
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