An ultralow concentration of Al-MOFs for turn-on fluorescence detection of aflatoxin B1 in tea samples

Wang, Fuxiang; Li, Zuopeng; Jia, Hongping; Lu, Riyu; Zhang, Sanbing; Pan, Canping; Zhang, Zhiqiang

doi:10.1016/j.foodchem.2022.132389

Cited by 36 publications

(17 citation statements)

References 39 publications

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“…may produce mycotoxins such as aflatoxin, ochratoxin, and zearalenone ( Krnjaja et al, 2019 ; Drakopoulos et al, 2021 ). Aflatoxins are difuran ring toxoids mainly produced by certain strains of Aspergillus flavus and Aspergillus parasitica ( Wang et al, 2022a ). Aflatoxins are carcinogenic, teratogenic, and mutagenic and can damage the liver of animals ( Ben Taheur et al, 2019 ).…”

Section: Health Problems Caused By Fungal Contaminationmentioning

confidence: 99%

Antifungal Mechanisms and Application of Lactic Acid Bacteria in Bakery Products: A Review

Liu

Zhang

et al. 2022

Front. Microbiol.

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Bakery products are nutritious, but they are susceptible to fungal contamination, which leads to a decline in quality and safety. Chemical preservatives are often used to extend the shelf-life of bakery products, but long-term consumption of these preservatives may increase the risk of chronic diseases. Consumers increasingly demand food with fewer chemical preservatives. The application of lactic acid bacteria (LAB) as a novel biological preservative not only prolongs the shelf-life of bakery products but also improves the baking properties of bakery products. This review summarizes different types and action mechanisms of antifungal compounds produced by LAB, factors affecting the production of antifungal compounds, and the effects of antifungal LAB on bakery products, providing a reference for future applications of antifungal LAB in bakery products.

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Section: Health Problems Caused By Fungal Contaminationmentioning

confidence: 99%

Antifungal Mechanisms and Application of Lactic Acid Bacteria in Bakery Products: A Review

Liu

Zhang

et al. 2022

Front. Microbiol.

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“…Optical biosensors based on LMOF composites with diverse functions and structures provide a new option for purifying food matrices and enhancing trace targets, thereby paving the way for the emergence of new supersensitive and productive technologies for food safety diagnosis [ 95 ]. As a consequence of this, Fuxiang Wang et al (2022) [ 96 ] developed a switching-on fluorescent sensor platform on an ultralow intensity-based Al-MOF for the sensing of AFB1 in various tea samples, including Biluochun tea, Junshan silver needle tea, and Pu’er tea with 0.05–9.61 μM linearity concentration-response range and a 0.01167 mg/L low detection limit ( Figure 9 ). In another study, Ouyang et al (2022) [ 97 ] prepared Co SASCs on ZIF-8@SiO 2 nanoparticles using a unique in situ etching technique without requiring high temperature.…”

Section: Optical Sensing Platforms For Sensing Different Mycotoxins I...mentioning

confidence: 99%

“… Graphic depiction of fluorescent aflatoxin B1 detecting employing fluorescent metal-organic frameworks. Adapted with permission from the article [ 96 ]. 2022, Elsevier.…”

Section: Figurementioning

confidence: 99%

MOF-Based Mycotoxin Nanosensors for Food Quality and Safety Assessment through Electrochemical and Optical Methods

et al. 2022

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Mycotoxins in food are hazardous for animal and human health, resulting in food waste and exacerbating the critical global food security situation. In addition, they affect commerce, particularly the incomes of rural farmers. The grave consequences of these contaminants require a comprehensive strategy for their elimination to preserve consumer safety and regulatory compliance. Therefore, developing a policy framework and control strategy for these contaminants is essential to improve food safety. In this context, sensing approaches based on metal-organic frameworks (MOF) offer a unique tool for the quick and effective detection of pathogenic microorganisms, heavy metals, prohibited food additives, persistent organic pollutants (POPs), toxins, veterinary medications, and pesticide residues. This review focuses on the rapid screening of MOF-based sensors to examine food safety by describing the main features and characteristics of MOF-based nanocomposites. In addition, the main prospects of MOF-based sensors are highlighted in this paper. MOF-based sensing approaches can be advantageous for assessing food safety owing to their mobility, affordability, dependability, sensitivity, and stability. We believe this report will assist readers in comprehending the impacts of food jeopardy exposure, the implications on health, and the usage of metal-organic frameworks for detecting and sensing nourishment risks.

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“…Compared with other analytical methods, fluorescence techniques not only possess the characteristics of facile operation without specialized instrumentation but also exhibit high sensitivity and good selectivity for analytes. − The fluorophores have a significant effect on the sensing performance of the fluorescent strategy. Currently, some fluorophores (such as metal–organic frameworks and carbon quantum dots) were employed for the quantitative detection of AFB 1 in food samples directly. ,− For instance, Wang et al successfully developed a fluorescent sensing platform based on Al-MOF for the efficient detection of AFB 1 . Although the above materials possess a well-designed molecular structure, poor water solubility, and time stability limit their further practical application greatly. , It remains a challenge to find an appropriate probe for AFB 1 detection in 100% aqueous systems.…”

Section: Introductionmentioning

confidence: 99%

Nanoassemblies Based on a Cationic Perylene Diimide Derivative and Sodium Dodecyl Sulfate: A Simple Fluorescent Platform for Efficient Analysis of Aflatoxin B₁

et al. 2023

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Aflatoxin B 1 (AFB 1 ) is a kind of potently carcinogenic fungal metabolite in food threatening human health, and it is crucial and challenging to develop advanced nonimmune approaches for AFB 1 determination. Addressing this challenge, we successfully constructed a nanoassembly (PdE-PDI/SDS) by noncovalently coupling a cationic perylene diimide derivative (PdE-PDI) and sodium dodecyl sulfate (SDS), exhibiting high-density charges and a specific surface area for rapid sensing of AFB 1 . The large electronic conjugate structure and rigid plane of PdE-PDI enable it to form more stable σ−π, π−π coordination, and hydrogen bonds with AFB 1 . Additionally, the introduction of SDS significantly amplifies noncovalent interactions and enhances the quenching efficiency of PdE-PDI toward AFB 1 . The proposed PdE-PDI/SDS exhibited excellent specificity to AFB 1 and showed dosagesensitive detection with detection limit as low as 0.74 ng mL −1 . Finally, the PdE-PDI/SDS was successfully applied in cereal samples with good recoveries from 94.61 to 109.92%. To our knowledge, this is the first time a fluorescent strategy from the point of selfassembly for AFB 1 determination is reported, which holds great promise for wide applications of perylene diimide derivative in food safety.

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An ultralow concentration of Al-MOFs for turn-on fluorescence detection of aflatoxin B1 in tea samples

Cited by 36 publications

References 39 publications

Antifungal Mechanisms and Application of Lactic Acid Bacteria in Bakery Products: A Review

Antifungal Mechanisms and Application of Lactic Acid Bacteria in Bakery Products: A Review

MOF-Based Mycotoxin Nanosensors for Food Quality and Safety Assessment through Electrochemical and Optical Methods

Nanoassemblies Based on a Cationic Perylene Diimide Derivative and Sodium Dodecyl Sulfate: A Simple Fluorescent Platform for Efficient Analysis of Aflatoxin B₁

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An ultralow concentration of Al-MOFs for turn-on fluorescence detection of aflatoxin B1 in tea samples

Cited by 36 publications

References 39 publications

Antifungal Mechanisms and Application of Lactic Acid Bacteria in Bakery Products: A Review

Antifungal Mechanisms and Application of Lactic Acid Bacteria in Bakery Products: A Review

MOF-Based Mycotoxin Nanosensors for Food Quality and Safety Assessment through Electrochemical and Optical Methods

Nanoassemblies Based on a Cationic Perylene Diimide Derivative and Sodium Dodecyl Sulfate: A Simple Fluorescent Platform for Efficient Analysis of Aflatoxin B1

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Nanoassemblies Based on a Cationic Perylene Diimide Derivative and Sodium Dodecyl Sulfate: A Simple Fluorescent Platform for Efficient Analysis of Aflatoxin B₁