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Advanced Materials in Food Analysis and Testing

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

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 8747

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Special Issue Editors

Dr. Xiuying Liu

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Guest Editor

College of Food Science and Engineering, Bohai University, Jinzhou, China
Interests: polymer; nanomaterials; food analysis; fluorescent sensing; rapid detection; drug-residue detection

Dr. Yiwei Tang

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Guest Editor

College of Food Science and Technology, Hebei Agricultural University, Baoding 071000, China
Interests: fluorescent probe; molecularly imprinting sensor; food safety monitoring; rapid detection; nanoparticles; analytical chemistry
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Special Issue Information

Dear Colleagues,

Food analytical methods aid our understanding of the components in complex food matrices during food processing. However, the development of novel analytical methods can be challenging, due to the serious matrix interference, complex characteristics, and ultra-low content of analytes. Advanced materials, such as nanoparticles, florescent dyes, polymers, and biomaterials, are being demonstrated to have a large impact on many aspects of food analysis and testing. The development of new advanced materials is critical to encourage novel analytical methods to be more rapid, accurate, and sensitive.

This Special Issue aims to collate the latest advances in the development and application of novel analytical methods in relation to food. The topics of particular interest include, but are not limited to, the following areas:

Analytical methods based on nano-materials;
Biosensors and optical sensors;
Fluorescent analytical methods;
Rapid detection and immunoassay;
Sample preparation based on advanced materials.

Dr. Xiuying Liu
Dr. Yiwei Tang
Guest Editors

Manuscript Submission Information

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Keywords

advanced materials
biosensors
fluorescent probe
rapid detection

Published Papers (5 papers)

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Research

14 pages, 3183 KiB

Open AccessArticle

A Novel Sulfonamide, Molecularly Imprinted, Upconversion Fluorescence Probe Prepared by Pickering Emulsion Polymerization and Its Adsorption and Optical Sensing Performance

by Qidi Pan, Zhe Gao, He Meng, Xianghua Guo, Meitian Zhang and Yiwei Tang

Molecules 2023, 28(8), 3391; https://doi.org/10.3390/molecules28083391 - 12 Apr 2023

Cited by 1 | Viewed by 1387

Abstract

A novel, molecularly imprinted, upconversion fluorescence probe (UCNP@MIFP) for sulfonamide sensing was fabricated by Pickering emulsion polymerization using UCNP@SiO₂ particles as the stabilizer and sulfamethazine/sulfamerazine as the co-templates. The synthesis conditions of the UCNP@MIFP were optimized, and the synthesized probe was characterized by scanning electron microscopy, Fourier transform infrared spectrometer, thermogravimetric analyzer, and fluorescence spectrometer. The UCNP@MIFPs showed a good adsorption capacity and a fast kinetic feature for the template. The selectivity experiment revealed that the UCNP@MIFP has a broad-spectrum molecular recognition capability. Good linear relationships were obtained over the concentration range of 1–10 ng/mL for sulfamerazine, sulfamethazine, sulfathiazole, and sulfafurazole, with low limits of detection in the range of 1.37–2.35 ng/mL. The prepared UCNP@MIFP has the potential to detect four sulfonamide residues in food and environmental water. Full article

(This article belongs to the Special Issue Advanced Materials in Food Analysis and Testing)

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12 pages, 6267 KiB

Open AccessArticle

Quantum Dot Nanobeads as Multicolor Labels for Simultaneous Multiplex Immunochromatographic Detection of Four Nitrofuran Metabolites in Aquatic Products

by Xiuying Liu, Yuanyuan Cheng, Binbin Guan, Fei Xia, Ling Fan, Xue Gao, Xiaofei Sun, Xuepeng Li and Lijie Zhu

Molecules 2022, 27(23), 8324; https://doi.org/10.3390/molecules27238324 - 29 Nov 2022

Cited by 2 | Viewed by 1377

Abstract

A multicolor immunochromatographic assay platform based on quantum dot nanobeads (QBs) for the rapid and simultaneous detection of nitrofuran metabolites in different aquatic products is documented. These metabolites include 3-amino-2-oxazolidinone (AOZ), 1-aminohydantoin (AHD), semicarbazide (SEM), and 3-amino-5-morpholino-methyl-1,3-oxazolidinone (AMOZ). QBs with emission colors of red, yellow, green, and orange were employed and functionalized with the corresponding antibodies to each analyte to develop a multicolor channel. The visual detection limits (cutoff values) of our method for AOZ, AHD, SEM, and AMOZ reached up to 50 ng/mL, which were 2, 20, 20, and 20 times lower than those of traditional colloidal gold test strips, respectively. The test strip is capable of detection within 10 min in real samples while still achieving good stability and specificity. These results demonstrate that the developed multicolor immunochromatographic assay platform is a promising technique for multiplex, highly sensitive, and on-site detection of nitrofuran metabolites. Full article

(This article belongs to the Special Issue Advanced Materials in Food Analysis and Testing)

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9 pages, 1374 KiB

Open AccessFeature PaperArticle

Aptamer Molecular Beacon Sensor for Rapid and Sensitive Detection of Ochratoxin A

by Hao Yu and Qiang Zhao

Molecules 2022, 27(23), 8267; https://doi.org/10.3390/molecules27238267 - 26 Nov 2022

Cited by 5 | Viewed by 1994

Abstract

Ochratoxin A (OTA) is a carcinogenic fungal secondary metabolite which causes wide contamination in a variety of food stuffs and environments and has a high risk to human health. Developing a rapid and sensitive method for OTA detection is highly demanded in food safety, environment monitoring, and quality control. Here, we report a simple molecular aptamer beacon (MAB) sensor for rapid OTA detection. The anti-OTA aptamer has a fluorescein (FAM) labeled at the 5′ end and a black hole quencher (BHQ1) labeled at the 3′ end. The specific binding of OTA induced a conformational transition of the aptamer from a random coil to a duplex–quadruplex structure, which brought FAM and BHQ1 into spatial proximity causing fluorescence quenching. Under the optimized conditions, this aptamer sensor enabled OTA detection in a wide dynamic concentration range from 3.9 nM to 500 nM, and the detection limit was about 3.9 nM OTA. This method was selective for OTA detection and allowed to detect OTA spiked in diluted liquor and corn flour extraction samples, showing the capability for OTA analysis in practical applications. Full article

(This article belongs to the Special Issue Advanced Materials in Food Analysis and Testing)

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14 pages, 2142 KiB

Open AccessArticle

A Sensitive and Selective Colorimetric Method Based on the Acetylcholinesterase-like Activity of Zeolitic Imidazolate Framework-8 and Its Applications

by Guo-Ying Chen, Zheng-Ming Qian, Shi-Jun Yin, Xi Zhou and Feng-Qing Yang

Molecules 2022, 27(21), 7491; https://doi.org/10.3390/molecules27217491 - 3 Nov 2022

Cited by 3 | Viewed by 1466

Abstract

In this study, a simple colorimetric method was established to detect copper ion (Cu²⁺), sulfathiazole (ST), and glucose based on the acetylcholinesterase (AChE)-like activity of zeolitic imidazolate framework-8 (ZIF-8). The AChE-like activity of ZIF-8 can hydrolyze acetylthiocholine chloride (ATCh) to thiocholine (TCh), which will further react with 5,5′-dithiobis (2-nitrobenzoic acid) (DTNB) to generate 2-nitro-5-thiobenzoic acid (TNB) that has a maximum absorption peak at 405 nm. The effects of different reaction conditions (buffer pH, the volume of ZIF-8, reaction temperature and time, and ATCh concentration) were investigated. Under the optimized conditions, the value of the Michaelis-Menten constant (K_m) is measured to be 0.83 mM, which shows a high affinity toward the substrate (ATCh). Meanwhile, the ZIF-8 has good storage stability, which can maintain more than 80.0% of its initial activity after 30 days of storage at room temperature, and the relative standard deviation (RSD) of batch-to-batch (n = 3) is 5.1%. The linear dependences are obtained based on the AChE-like activity of ZIF-8 for the detection of Cu²⁺, ST, and glucose in the ranges of 0.021–1.34 and 5.38–689.66 µM, 43.10–517.24 µM, and 0.0054–1.40 mM, respectively. The limit of detections (LODs) are calculated to be 20.00 nM, 9.25 µM, and 5.24 µM, respectively. Moreover, the sample spiked recoveries of Cu²⁺ in lake water, ST in milk, and glucose in strawberry samples were measured, and the results are in the range of 98.4–115.4% with the RSD (n = 3) lower than 3.3%. In addition, the method shows high selectivity in the real sample analysis. Full article

(This article belongs to the Special Issue Advanced Materials in Food Analysis and Testing)

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12 pages, 2838 KiB

Open AccessArticle

A Capillary Electrophoresis Method Based on Molecularly Imprinted Solid-Phase Extraction for Selective and Sensitive Detection of Histamine in Foods

by Yixuan Fan, Runze Yu, Yongfeng Chen, Yufeng Sun, Geoffrey I. N. Waterhouse and Zhixiang Xu

Molecules 2022, 27(20), 6987; https://doi.org/10.3390/molecules27206987 - 17 Oct 2022

Cited by 7 | Viewed by 1947

Abstract

In this study, a sensitive capillary electrophoresis (CE) method based on molecularly imprinted solid-phase extraction (MISPE) was proposed to determine histamine in foods. A molecularly imprinted polymer (MIP) synthesized by bulk polymerization was used as the MISPE adsorbent for the selective extraction of histamine. Under the optimal conditions, the MISPE-CE method possessed good linearity for histamine detection in the concentration range of 0.1–100.0 μg/L. The limit of detection and limit of quantification of the method were calculated to be 0.087 μg/L and 0.29 μg/L, respectively. The histamine in spiked rice vinegar and liquor samples were detected by the developed method with recoveries of 92.63–111.00%. The histamine contents in fish, prawn, pork, chicken breast and soy sauce samples were determined using the developed method and a high-performance liquid chromatography method, with no significant difference found between the two methods. Full article

(This article belongs to the Special Issue Advanced Materials in Food Analysis and Testing)

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