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Foods
Special Issues
Chemical Contaminant Monitoring and Detection in the Food Supply Chain
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Chemical Contaminant Monitoring and Detection in the Food Supply Chain

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

Deadline for manuscript submissions: closed (10 January 2023) | Viewed by 4634

Special Issue Editors

Dr. Xiaonan Lu

E-Mail Website
Guest Editor
Department of Food Science and Agricultural Chemistry, McGill University, Ste Anne de Bellevue, QC H9X 3V9, Canada
Interests: food safety; food microbiology; molecular microbiology; microbial ecology; rapid detection; biosensor; instrumentation; analytical chemistry; food sustainability; food synthetic biology; cellular agriculture; food microbiota; gut microbiota; food authentication
Special Issues, Collections and Topics in MDPI journals
Dr. Yaxi Hu

E-Mail Website
Guest Editor
Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
Interests: food safety; food authenticity; metabolomics; machine learning

Special Issue Information

Dear Colleagues,

Foods can be contaminated by various chemicals at any stage of the supply chain, such as from farming to packaging and from processing to transportation. Chemical contaminants found in foods include both naturally occurring toxins (e.g., mycotoxins, heavy metals, and persistent organic pollutants migrated from food packaging) and intentionally applied compounds (e.g., pesticides, antibiotics, and animal drugs). These chemicals pose severe risks to human health, result in food waste, and have long-term detrimental effects on the public trust in the food industry and government. Effective and efficient monitoring and detection strategies to avoid these chemicals entering the food supply chain as well as to remove contaminated food products in a timely manner is highly demanded.

This Special Issue accepts both research articles and reviews focusing on the development and optimization of strategies for effective and efficient monitoring and detection of chemical contaminants in the food supply chain, including sampling methods and plans, sample preparation, and various analytical methods that are suitable for different sections of the supply chain. Analytical methods that are nondestructive/less destructive, rapid, portable, and/or can be applied for in-field and on-site analysis are especially welcomed.

Dr. Xiaonan Lu
Dr. Yaxi Hu
Guest Editors

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

  • food chemical safety
  • sampling methods and plans
  • sample preparation
  • analytical methods
  • rapid analysis
  • portable assays
  • nondestructive/less destructive methods
  • in-field/on-site analysis

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Published Papers (2 papers)

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Research

14 pages, 1877 KiB  
Article
Multiple Organic Contaminants Determination Including Multiclass of Pesticides, Polychlorinated Biphenyls, and Brominated Flame Retardants in Portuguese Kiwano Fruits by Gas Chromatography
by Virgínia Cruz Fernandes, Martyna Podlasiak, Elsa F. Vieira, Francisca Rodrigues, Clara Grosso, Manuela M. Moreira and Cristina Delerue-Matos
Foods 2023, 12(5), 993; https://doi.org/10.3390/foods12050993 - 26 Feb 2023
Cited by 3 | Viewed by 1861
Abstract
Global production of exotic fruits has been growing steadily over the past decade and expanded beyond the originating countries. The consumption of exotic and new fruits, such as kiwano, has increased due to their beneficial properties for human health. However, these fruits are [...] Read more.
Global production of exotic fruits has been growing steadily over the past decade and expanded beyond the originating countries. The consumption of exotic and new fruits, such as kiwano, has increased due to their beneficial properties for human health. However, these fruits are scarcely studied in terms of chemical safety. As there are no studies on the presence of multiple contaminants in kiwano, an optimized analytical method based on the QuEChERS for the evaluation of 30 multiple contaminants (18 pesticides, 5 polychlorinated biphenyls (PCB), 7 brominated flame retardants) was developed and validated. Under the optimal conditions, satisfactory extraction efficiency was obtained with recoveries ranging from 90% to 122%, excellent sensitivity, with a quantification limit in the range of 0.6 to 7.4 µg kg−1, and good linearity ranging from 0.991 to 0.999. The relative standard deviation for precision studies was less than 15%. The assessment of the matrix effects showed enhancement for all the target compounds. The developed method was validated by analyzing samples collected from Douro Region. PCB 101 was found in trace concentration (5.1 µg kg−1). The study highlights the relevance of including other organic contaminants in monitoring studies in food samples in addition to pesticides. Full article
(This article belongs to the Special Issue Chemical Contaminant Monitoring and Detection in the Food Supply Chain)
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15 pages, 1843 KiB  
Article
Determination of Soil Cadmium Safety Thresholds for Food Production in a Rice-Crayfish Coculture System
by Hui Gao, Xiang Peng, Linxiu Dai, Jingyong Li, Qian Yang, Zhi Dou and Qiang Xu
Foods 2022, 11(23), 3828; https://doi.org/10.3390/foods11233828 - 27 Nov 2022
Cited by 2 | Viewed by 1851
Abstract
Previous studies have mainly focused on cadmium (Cd) contamination in conventional rice monocultures, and no research on rice-crayfish coculture has been reported. In this study, a Cd-contaminated (0–30 mg kg−1) rice-crayfish co-culture system was established by adding exogenous Cd. The results [...] Read more.
Previous studies have mainly focused on cadmium (Cd) contamination in conventional rice monocultures, and no research on rice-crayfish coculture has been reported. In this study, a Cd-contaminated (0–30 mg kg−1) rice-crayfish co-culture system was established by adding exogenous Cd. The results showed that the Cd concentration in each tissue of rice and each organ of crayfish increased with increasing soil Cd concentration. Specifically, the Cd concentration in each rice tissue was as follows: root > stem > leaf ≈ panicle > grain > brown rice, and the jointing and heading stages were critical periods for the rapid enrichment of Cd in the aboveground tissues of rice. The Cd concentration in each organ of crayfish was as follows: hepatopancreas > gut > gill ≈ exoskeleton > abdominal muscle. Cd was gradually enriched in the abdominal muscle after 30 days of coculture between crayfish and rice. Pearson’s correlation analysis showed that the soil’s total Cd concentration, available Cd concentration, and water Cd concentration were positively correlated with Cd content in various tissues of rice and various organs of crayfish, whereas EC and TDS in water were markedly related to rice stems, leaves, stalks, and small crayfish. According to the maximum limit of Cd in grain (0.2 mg kg−1) and crustacean aquatic products (0.5 mg kg−1) in China, the safe threshold of soil Cd for rice and crayfish under the rice-crayfish coculture system is 3.67 and 14.62 mg kg−1, respectively. Therefore, when the soil Cd concentration in the rice-crayfish coculture system exceeds 3.67 mg kg−1, the safety risk to humans through the consumption of food from this coculture system will increase. This study provides a theoretical basis for safe food production in a rice-crayfish coculture system using the established Cd pollution model. Full article
(This article belongs to the Special Issue Chemical Contaminant Monitoring and Detection in the Food Supply Chain)
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