This study describes a capillary zone electrophoretic method for the determination of patulin. An optimum run buffer was found to be 25 mM of sodium tetraborate and 10% acetonitrile (v/v) at pH 10. Optimum conditions were determined to be: an applied voltage of 25 kV (normal polarity), temperature of 25°C and injection time of 10 s at 50 mbar; the signals of patulin and phenobarbital as internal standard were detected at 276 nm. The method was highly reproducible, with relative standard deviations of 0.02-0.85 for intra-day and 0.04-0.42 for inter-day for standard patulin. Acceptable linearity [y = 0.0020C (μg/L) - 0.0680 (r = 0.9999)] was obtained over a concentration range of 0.25 to 4.99 µg/mL of patulin. The limits of detection and quantification were calculated to be 5.9 × 10(-3) and 1.79 × 10(-2) µg/mL, respectively. Recovery was 68.0%. The proposed method was applied to 21 apple juice samples purchased from different Turkish markets, and two were found to contain higher than the limits of the European Union Directive for patulin.
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http://dx.doi.org/10.1093/chromsci/bms142 | DOI Listing |
Anal Chem
January 2025
Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
Comprehending the biosensing mechanism of the biosensor interface is crucial for sensor development, yet accurately reflecting interfacial interactions within actual detection environments remains an unsolved challenge. An operando photoelectrochemical surface-enhanced Raman spectroscopy (PEC-SERS) biosensing platform was developed, capable of simultaneously capturing photocurrent and SERS signals, allowing operando characterization of the interfacial biosensing behavior. Porphyrin-based MOFs (Zr-MOF) served as bifunctional nanotags, providing a photocurrent and stable Raman signal output under 532 nm laser irradiation.
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December 2024
Research Group in Alternative Methods for Determining Toxics Effects and Risk Assessment of Contaminants and Mixtures (RiskTox), 46100 Valencia, Spain.
Mycotoxins are among the most concerning natural toxic food contaminants. Over the years, significant efforts have been made to characterize the risk associated with their exposure. However, assessing their toxicity has so far been elusive due to the lack of adequate models that closely mimic the physiological conditions of human cells .
View Article and Find Full Text PDFToxins (Basel)
November 2024
Institute of Legal Medicine, Department of Medical and Surgical Sciences, "Magna Graecia" University, 88100 Catanzaro, Italy.
Mycotoxins, specifically aflatoxin B1 (AFB1), ochratoxin A (OTA), trichothecenes (TCNs), and patulin, are a group of secondary metabolites that can contaminate food, leading to severe health implications for humans. Their detection and analysis within forensic toxicology are crucial, particularly as they can be implicated in cases of poisoning, foodborne illnesses, or lethal chronic exposure. However, little is known about the application that mycotoxins could have in forensic investigations and especially about the possibility of extracting and quantifying these molecules on tissues or post-mortem fluids collected at autopsy.
View Article and Find Full Text PDFFungal Biol
December 2024
Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, 29122, Piacenza, Italy. Electronic address:
Apples and apple-derived products can be contaminated with patulin and, to a lesser extent, aflatoxin B1 and fumonisins. Fruits were collected from Golden Delicious and Imperatore trees in three orchards in Veneto, Northern Italy, and analysed for the presence of fungi and mycotoxins. Sampling and analyses were also carried out from storage bins to final puree tanks along the apple-puree production chain.
View Article and Find Full Text PDFFood Microbiol
March 2025
College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China. Electronic address:
Patulin (PAT), a notorious mycotoxin widely found in fruits and their derived products, poses serious health risks to humans and animals due to its high toxicity. Biodegradation based on microbial enzymes has shown broad application prospects in controlling PAT contamination due to its environmental friendliness, high efficiency, strong specificity, and mild conditions of action. Bacillus subtilis is a cosmopolitan probiotic bacterium with an extensive enzymatic profile, which could serve as a valuable resource for the effective production of a range of enzymes utilized in various industrial processes and production applications.
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