scholarly journals Pre-Concentration and Analysis of Mycotoxins in Food Samples by Capillary Electrophoresis

Molecules ◽  
2020 ◽  
Vol 25 (15) ◽  
pp. 3441
Author(s):  
Raffaella Colombo ◽  
Adele Papetti
Keyword(s):  
Public Health ◽  
Capillary Electrophoresis ◽  
Food Safety ◽  
Sample Preparation ◽  
Analytical Methods ◽  
Food Samples ◽  
Food Contaminants ◽  
Interesting Approach ◽  
Food Matrices ◽  
Official Sample

Mycotoxins are considered one of the most dangerous agricultural and food contaminants. They are toxic and the development of rapid and sensitive analytical methods to detect and quantify them is a very important issue in the context of food safety and animal/human health. The need to detect mycotoxins at trace levels and to simultaneously analyze many different mycotoxin types became mandatory to protect public health. In fact, European Commission regulations specified both their limits in foodstuffs and official sample preparation protocols in addition to analytical methods to verify their presence. Capillary Electrophoresis (CE) includes different separation modes, allowing many versatile applications in food analysis and safety. In the context of mycotoxins, recent advances to improve CE sensitivity, particularly pre-concentration techniques or miniaturized systems, deserve remarkable attention, as they provide an interesting approach in the analysis of such contaminants in complex food matrices. This review summarizes the applications of CE combined with different pre-concentration approaches, which have been proposed in the literature (mainly) in the last ten years. A section is also dedicated to recent microchip–CE devices since they represent the most promising CE mode for this application.

Recent advancements in analytical methods for the determination of steroidal estrogen residues in environmental and food matrices

2016 ◽  
Vol 8 (28) ◽  
pp. 5556-5568 ◽  
Author(s):  
Sameera R. Gunatilake ◽  
Vihanga K. Munasinghe ◽  
Ruchiranga Ranaweera ◽  
Todd E. Mlsna ◽  
Kang Xia
Keyword(s):  
Analytical Methods ◽  
Food Samples ◽  
Steroidal Estrogen ◽  
Food Matrices

Residual steroidal estrogens in environmental and food samples have become a cause for concern as they can affect organisms at low ppt concentrations.

scholarly journals Detection of Five Mycotoxins in Different Food Matrices in the Malaysian Market by Using Validated Liquid Chromatography Electrospray Ionization Triple Quadrupole Mass Spectrometry

Toxins ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 196 ◽  
Author(s):  
Ali Alsharif ◽  
Yeun-Mun Choo ◽  
Guan-Huat Tan
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Ochratoxin A ◽  
Wheat Flour ◽  
Food Samples ◽  
Food Contaminants ◽  
Relative Standard ◽  
Liquid Chromatography Tandem Mass ◽  
Food Matrices

Mycotoxins are common food contaminants which cause poisoning and severe health risks to humans and animals. The present study applied chemometric approach in liquid chromatography-tandem mass spectrometry (LC-MS/MS) optimization for simultaneous determination of mycotoxins, i.e., aflatoxins B1, B2, G1, and G2, and ochratoxin A. The validated quick, easy, cheap, effective, rugged, and safe (QuEChERS)-LC-MS/MS method was used to study the occurrence of mycotoxins in 120 food matrices. The recovery ranges from 81.94% to 101.67% with relative standard deviation (RSD) lesser than 11%. Through the developed method, aflatoxins were detected in raisin, pistachio, peanut, wheat flour, spice, and chili samples with concentration ranges from 0.45 to 16.93 µg/kg. Trace concentration of ochratoxin A was found in wheat flour and peanut samples which ranged from 1.2 to 3.53 µg/kg. Some of the tested food samples contained mycotoxins of above the European legal maximum limit.

scholarly journals Advances in the Analysis of Veterinary Drug Residues in Food Matrices by Capillary Electrophoresis Techniques

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4617 ◽  
Author(s):  
Raffaella Colombo ◽  
Adele Papetti
Keyword(s):  
Capillary Electrophoresis ◽  
Sample Preparation ◽  
Human Health ◽  
Food Quality ◽  
Potential Risk ◽  
Analytical Techniques ◽  
Veterinary Drug ◽  
Quality And Safety ◽  
Food Quality And Safety ◽  
Food Matrices

In the last years, the European Commission has adopted restrictive directives on food quality and safety in order to protect animal and human health. Veterinary drugs represent an important risk and the need to have sensitive and fast analytical techniques to detect and quantify them has become mandatory. Over the years, the availability of different modes, interfaces, and formats has improved the versatility, sensitivity, and speed of capillary electrophoresis (CE) techniques. Thus, CE represents a powerful tool for the analysis of a large variety of food matrices and food-related molecules with important applications in food quality and safety. This review focuses the attention of CE applications over the last decade on the detection of different classes of drugs (used as additives in animal food or present as contaminants in food products) with a potential risk for animal and human health. In addition, considering that the different sample preparation procedures have strongly contributed to CE sensitivity and versatility, the most advanced sample pre-concentration techniques are discussed here.

Nontargeted Detection Methods for Food Safety and Integrity

2019 ◽  
Vol 10 (1) ◽  
pp. 429-455 ◽  
Author(s):  
Bing Shao ◽  
Hui Li ◽  
Jianzhong Shen ◽  
Yongning Wu
Keyword(s):  
Analytical Chemistry ◽  
Mass Spectrometry ◽  
Food Safety ◽  
Sample Preparation ◽  
Detection Methods ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Chemical Database ◽  
Analytical Strategies ◽  
Food Matrices

Nontargeted workflows for chemical hazard analyses are highly desirable in the food safety and integrity fields to ensure human health. Two different analytical strategies, nontargeted metabolomics and chemical database filtering, can be used to screen unknown contaminants in food matrices. Sufficient mass and chromatographic resolutions are necessary for the detection of compounds and subsequent componentization and interpretation of candidate ions. Analytical chemistry–based technologies, including gas chromatography–mass spectrometry (GC-MS), liquid chromatography–mass spectrometry (LC-MS), nuclear magnetic resonance (NMR), and capillary electrophoresis–mass spectrometry (CE-MS), combined with chemometrics analysis are being used to generate molecular formulas of compounds of interest. The construction of a chemical database plays a crucial role in nontargeted detection. This review provides an overview of the current sample preparation, analytical chemistry–based techniques, and data analysis as well as the limitations and challenges of nontargeted detection methods for analyzing complex food matrices. Improvements in sample preparation and analytical platforms may enhance the relevance of food authenticity, quality, and safety.

scholarly journals Applications of Metal-Organic Frameworks in Food Sample Preparation

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2896 ◽  
Author(s):  
Natalia Manousi ◽  
George Zachariadis ◽  
Eleni Deliyanni ◽  
Victoria Samanidou
Keyword(s):  
Sample Preparation ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Food Samples ◽  
Inorganic Materials ◽  
Molecular Imprinted Polymers ◽  
Metal Organic ◽  
Food Matrices ◽  
Carbon Based Nanomaterials

Food samples such as milk, beverages, meat and chicken products, fish, etc. are complex and demanding matrices. Various novel materials such as molecular imprinted polymers (MIPs), carbon-based nanomaterials carbon nanotubes, graphene oxide and metal-organic frameworks (MOFs) have been recently introduced in sample preparation to improve clean up as well as to achieve better recoveries, all complying with green analytical chemistry demands. Metal-organic frameworks are hybrid organic inorganic materials, which have been used for gas storage, separation, catalysis and drug delivery. The last few years MOFs have been used for sample preparation of pharmaceutical, environmental samples and food matrices. Due to their high surface area MOFs can be used as adsorbents for the development of sample preparation techniques of food matrices prior to their analysis with chromatographic and spectrometric techniques with great performance characteristics.

scholarly journals Advances in Visual Immunoassays for Sensitive Detection of Mycotoxins in Food—A Review

2021 ◽  
Vol 5 (1) ◽  
pp. 25
Author(s):  
Meijuan Liang ◽  
Qi Zhang ◽  
Peiwu Li
Keyword(s):  
Public Health ◽  
Food Safety ◽  
Secondary Metabolites ◽  
Visual Detection ◽  
Agricultural Products ◽  
Low Level ◽  
Underlying Principle ◽  
Food Matrices ◽  
Limited Sensitivity ◽  
Signal Readout

Mycotoxins are the toxic secondary metabolites naturally produced by fungi; their contamination in agricultural products and food severely threatens food safety and public health worldwide. The reliable, efficient, and sensitive quantification of mycotoxins in food has become increasingly challenging to tackle due to the complexity of food matrices and their low level. Visual detection has emerged as a popular trend toward miniaturization and simplification of mycotoxins assays yet is constrained with their limited sensitivity. This review mainly focuses on the various sensitive visual immunoassays for signal amplified detection of mycotoxins. These signal amplified immunoassays for the improved sensitivity of mycotoxins detection in food through nanomaterials for encapsulation enzyme, enzyme-mediated nanomaterials as the amplified signal readout, and nanozyme. Furthermore, the underlying principle and the advantages of visual immunoassays for mycotoxins have been proposed. And the challenges and perspectives have been proposed to develop improved efficient visual immunoassays for mycotoxins in food.

Gold nanoparticle based colorimetric sensor for rapid detection of Yersinia enterocolitica serotype O:8 in food samples

2022 ◽  
Author(s):  
lu zeng ◽  
Xin-Xin Xu ◽  
Hongliu Ding ◽  
Shanshan Song ◽  
Liguang Xu ◽  
...  
Keyword(s):  
Public Health ◽  
Food Safety ◽  
Gold Nanoparticle ◽  
Yersinia Enterocolitica ◽  
Rapid Detection ◽  
Food Samples ◽  
Detection Methods ◽  
Foodborne Diseases ◽  
Global Public Health ◽  
Serotype O

Foodborne diseases from Yersinia enterocolitica serotype O:8 represent global public health problems. We need rapid Y. enterocolitica O:8 detection methods to ensure food safety. In this study, we developed a...

scholarly journals Comprehensive Strategy for Sample Preparation for the Analysis of Food Contaminants and Residues by GC–MS/MS: A Review of Recent Research Trends

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2473
Author(s):  
Meng-Lei Xu ◽  
Yu Gao ◽  
Xiao Wang ◽  
Xiao Xia Han ◽  
Bing Zhao
Keyword(s):  
Food Safety ◽  
Sample Preparation ◽  
Extraction Procedure ◽  
Food Contaminants ◽  
Purification Method ◽  
Preparation Methods ◽  
Degree Of Separation ◽  
Target Analytes ◽  
Food Quality And Safety ◽  
Full Scan

Food safety and quality have been gaining increasing attention in recent years. Gas chromatography coupled to tandem mass spectrometry (GC–MS/MS), a highly sensitive technique, is gradually being preferred to GC–MS in food safety laboratories since it provides a greater degree of separation on contaminants. In the analysis of food contaminants, sample preparation steps are crucial. The extraction of multiple target analytes simultaneously has become a new trend. Thus, multi-residue analytical methods, such as QuEChERs and adsorption extraction, are fast, simple, cheap, effective, robust, and safe. The number of microorganic contaminants has been increasing worldwide in recent years and are considered contaminants of emerging concern. High separation in MS/MS might be, in certain cases, favored to sample preparation selectivity. The ideal sample extraction procedure and purification method should take into account the contaminants of interest. Moreover, these methods should cooperate with high-resolution MS, and other sensitive full scan MSs that can produce a more comprehensive detection of contaminants in foods. In this review, we discuss the most recent trends in preparation methods for highly effective detection and analysis of food contaminants, which can be considered tools in the control of food quality and safety.

scholarly journals Application of Raman Spectroscopic Methods in Food Safety: A Review

Biosensors ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 187
Author(s):  
Marlen Petersen ◽  
Zhilong Yu ◽  
Xiaonan Lu
Keyword(s):  
Raman Spectroscopy ◽  
Food Safety ◽  
Surface Enhanced Raman Spectroscopy ◽  
Food Samples ◽  
Vital Role ◽  
Detection Methods ◽  
Spectroscopic Methods ◽  
Food Contaminants ◽  
Raman Spectroscopic ◽  
Food Detection

Food detection technologies play a vital role in ensuring food safety in the supply chains. Conventional food detection methods for biological, chemical, and physical contaminants are labor-intensive, expensive, time-consuming, and often alter the food samples. These limitations drive the need of the food industry for developing more practical food detection tools that can detect contaminants of all three classes. Raman spectroscopy can offer widespread food safety assessment in a non-destructive, ease-to-operate, sensitive, and rapid manner. Recent advances of Raman spectroscopic methods further improve the detection capabilities of food contaminants, which largely boosts its applications in food safety. In this review, we introduce the basic principles of Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), and micro-Raman spectroscopy and imaging; summarize the recent progress to detect biological, chemical, and physical hazards in foods; and discuss the limitations and future perspectives of Raman spectroscopic methods for food safety surveillance. This review is aimed to emphasize potential opportunities for applying Raman spectroscopic methods as a promising technique for food safety detection.

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