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Chromatographic Methods for Monitoring Food Safety and Quality
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Chromatographic Methods for Monitoring Food Safety and Quality

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Analytical Chemistry".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 5944

Special Issue Editors

Prof. Dr. José Bernal del Nozal

E-Mail Website
Guest Editor
I.U. CINQUIMA, Analytical Chemistry Group, Faculty of Sciences, University of Valladolid, 47011 Valladolid, Spain
Interests: chromatography; separation science; food analysis; food safety; pharmaceutical analysis; environmental analysis; method development; method validation; food quality
Special Issues, Collections and Topics in MDPI journals
Dr. Ana M. Ares

E-Mail Website
Guest Editor
I.U. CINQUIMA, Analytical Chemistry Group, Faculty of Sciences, University of Valladolid, Paseo de Belén 7, 471011 Valladolid, Spain
Interests: chromatography; separation science; food analysis; food safety; pharmaceutical analysis; environmental analysis; method development
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Food quality and safety are surely the most demanding aspects of today’s food industry. This sector has evolved in such a way that the quality controls we have today increasingly allow industries to know in detail the food they produce, and to guarantee its safety. These food requirements have been met thanks to the development of technology in the analysis instrumentation of quality and research laboratories. In particular, chromatography—probably the most-used analytical technique in the separation of individual compounds in foods and other matrices—is extensively applied in the characterization of bioactive compounds and aroma-related compounds in foods, and in the determination of food contaminants such as pesticides, veterinary drugs or antibiotics. This implies that the different chromatographic techniques, especially those related to liquid chromatography, gas chromatography and supercritical fluid chromatography, are very common techniques in food companies and food research centers. The progress made in chromatographic instrumentation has allowed specialist technicians to determine trace-level concentrations of compounds in different foods.

In this regard, this Special Issue on “Chromatographic Methods for Monitoring Food Safety and Quality” is a unique opportunity to gather papers describing the state of the art of chromatographic methods to control the safety and quality of foods. This topic involves scientific communities working in food authentication, food chemistry, and the analysis of contaminant residues in foods, and involves laboratories working on the revalorization and characterization of bioactive compounds from any food. Therefore, we welcome the submission of papers dealing with both chromatographic method development and with the application of chromatographic methods on food quality and safety, including raw materials.

Prof. Dr. José Bernal del Nozal
Dr. Ana M. Ares
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. Molecules 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 2700 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

  • antibiotics
  • bioactive compounds
  • chromatography
  • contaminants
  • food chemistry
  • food authentication
  • food safety
  • food quality
  • food safety
  • method validation
  • microplastics
  • pesticides
  • veterinary drugs

Published Papers (4 papers)

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Research

14 pages, 1154 KiB  
Article
Simultaneous Determination of Pesticide Residues and Mycotoxins in Storage Pu-erh Tea Using Ultra-High-Performance Liquid Chromatography Coupled with Tandem Mass Spectrometry
by Siu Leung Chau, Aihua Zhao, Wei Jia and Lu Wang
Molecules 2023, 28(19), 6883; https://doi.org/10.3390/molecules28196883 - 30 Sep 2023
Viewed by 878
Abstract
Mycotoxins and pesticides are the most concerning chemical contaminants that can affect the quality of Pu-erh tea during its production and storage. This study presents a method that can simultaneously determine 31 pesticide residues and six mycotoxins in Pu-erh tea within 11 min [...] Read more.
Mycotoxins and pesticides are the most concerning chemical contaminants that can affect the quality of Pu-erh tea during its production and storage. This study presents a method that can simultaneously determine 31 pesticide residues and six mycotoxins in Pu-erh tea within 11 min using ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS) after QuEChERS extraction. The lower limit of quantification (LOQ) for all analytes ranged between 0.06 and 50 ppb. Recoveries for each pesticide and mycotoxin ranged between 62.0 and 130.3%, with intra- and inter-day precisions lower than 15%. Good linear relationships were obtained, with correlation coefficients of r2 > 0.991 for all analytes. The established method was applied to 31 Pu-erh tea samples, including raw and ripened Pu-erh tea with different storage times. As a result, pesticide residues were not detected in any of the collected samples, and the mycotoxins detected in the samples were well below the official maximum residue limits (MRLs). Notably, the levels of aflatoxin B1 (AFB1), aflatoxin G1 (AFG1) and aflatoxin G2 (AFG2) were lower than 1 ppb in the samples stored for more than 30 years. Full article
(This article belongs to the Special Issue Chromatographic Methods for Monitoring Food Safety and Quality)
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14 pages, 4383 KiB  
Article
Determination of Pentachlorophenol in Seafood Samples from Zhejiang Province Using Pass-Through SPE-UPLC-MS/MS: Occurrence and Human Dietary Exposure Risk
by Xiaoyang Yan, Qiaoling Zhao, Zhongyong Yan, Xuechang Chen, Pengfei He, Shiyan Li and Yi Fang
Molecules 2023, 28(17), 6394; https://doi.org/10.3390/molecules28176394 - 01 Sep 2023
Cited by 1 | Viewed by 1039
Abstract
Pentachlorophenol (PCP) has attracted wide attention due to its high toxicity, persistence, and bioaccumulation. In this study, a sensitive UPLC-MS/MS method for the determination of PCP in seafood samples was developed and validated. The samples were ultrasonic extracted with acetonitrile containing 1% acetic [...] Read more.
Pentachlorophenol (PCP) has attracted wide attention due to its high toxicity, persistence, and bioaccumulation. In this study, a sensitive UPLC-MS/MS method for the determination of PCP in seafood samples was developed and validated. The samples were ultrasonic extracted with acetonitrile containing 1% acetic acid-acetonitrile and followed by using a pass-through solid-phase extraction (SPE) cleanup on Captiva EMR-Lipid cartridges. The linearity of this method ranged from 1 to 1000 μg/L, with regression coefficients of >0.99. The detection limit and quantitation limit were 0.5 μg/kg and 1.0 μg/kg, respectively. The recoveries in different types of seafood samples ranged from 86.4% to 102.5%, and the intra-day and inter-day relative standard deviations (RSDs) were 3.7% to 11.2% and 2.9% to 12.1%, respectively (n = 6). Finally, the method has been successfully utilized for the screening of PCP in 760 seafood samples from Zhejiang Province. PCP was detected in 5.8% of all seafood samples, with the largest portion of detections found in shellfish, accounting for approximately 60% of the total. The average concentrations detected ranged from 1.08 to 21.49 μg/kg. The non-carcinogenic risk indices for adults and children who consume PCP ranged from 10−4 to 10−3 magnitudes. All of these indices stayed significantly below 1, implying that the health risk from PCP in marine organisms to humans is minimal. Full article
(This article belongs to the Special Issue Chromatographic Methods for Monitoring Food Safety and Quality)
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12 pages, 798 KiB  
Article
Headspace with Gas Chromatography-Mass Spectrometry for the Use of Volatile Organic Compound Profile in Botanical Origin Authentication of Honey
by Ana Castell, Natalia Arroyo-Manzanares, Yolanda Guerrero-Núñez, Natalia Campillo and Pilar Viñas
Molecules 2023, 28(11), 4297; https://doi.org/10.3390/molecules28114297 - 24 May 2023
Cited by 3 | Viewed by 1468
Abstract
The botanical origin of honey determines its composition and hence properties and product quality. As a highly valued food product worldwide, assurance of the authenticity of honey is required to prevent potential fraud. In this work, the characterisation of Spanish honeys from 11 [...] Read more.
The botanical origin of honey determines its composition and hence properties and product quality. As a highly valued food product worldwide, assurance of the authenticity of honey is required to prevent potential fraud. In this work, the characterisation of Spanish honeys from 11 different botanical origins was carried out by headspace gas chromatography coupled with mass spectrometry (HS-GC-MS). A total of 27 volatile compounds were monitored, including aldehydes, alcohols, ketones, carboxylic acids, esters and monoterpenes. Samples were grouped into five categories of botanical origins: rosemary, orange blossom, albaida, thousand flower and “others” (the remaining origins studied, due to the limitation of samples available). Method validation was performed based on linearity and limits of detection and quantification, allowing the quantification of 21 compounds in the different honeys studied. Furthermore, an orthogonal partial least squares-discriminant analysis (OPLS-DA) chemometric model allowed the classification of honey into the five established categories, achieving a 100% and 91.67% classification and validation success rate, respectively. The application of the proposed methodology was tested by analysing 16 honey samples of unknown floral origin, classifying 4 as orange blossom, 4 as thousand flower and 8 as belonging to other botanical origins. Full article
(This article belongs to the Special Issue Chromatographic Methods for Monitoring Food Safety and Quality)
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13 pages, 1156 KiB  
Article
Development and Validation of a Gas Chromatography-Mass Spectrometry Method for Determining Acaricides in Bee Pollen
by Adrián Fuente-Ballesteros, Camille Augé, José Bernal and Ana M. Ares
Molecules 2023, 28(6), 2497; https://doi.org/10.3390/molecules28062497 - 09 Mar 2023
Cited by 3 | Viewed by 1928
Abstract
Pesticides can be found in beehives for several reasons, including contamination from surrounding crops or for their use by beekeepers, which poses a risk to bee ecosystems and consumers. Therefore, efficient and sensitive methods are needed for determining pesticide residues in bee products. [...] Read more.
Pesticides can be found in beehives for several reasons, including contamination from surrounding crops or for their use by beekeepers, which poses a risk to bee ecosystems and consumers. Therefore, efficient and sensitive methods are needed for determining pesticide residues in bee products. In this study, a new analytical method has been developed and validated to determine seven acaricides (atrazine, chlorpyrifos, chlorfenvinphos, α-endosulfan, bromopropylate, coumaphos, and τ-fluvalinate) in bee pollen using gas chromatography coupled to mass spectrometry. After an optimization study, the best sample treatment was obtained when using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method employing an ethyl acetate and cyclohexane as the extractant mixture, and a mixture of salts for the clean-up step. A chromatographic analysis (<21 min) was performed in an Agilent DB-5MS column, and it was operated under programmed temperature conditions. The method was fully validated in terms of selectivity, limits of detection (0.2–3.1 µg kg−1) and quantification (0.6–9.7 µg kg−1), linearity, matrix effect (<20% in all cases), trueness (recoveries between 80% and 108%), and precision. Finally, the proposed method was applied to analyze commercial bee pollen samples, and some of the target pesticides (chlorfenvinphos, α-endosulfan, coumaphos, and τ-fluvalinate) were detected. Full article
(This article belongs to the Special Issue Chromatographic Methods for Monitoring Food Safety and Quality)
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