Direct analysis in real time (DART) ionisation coupled to a high-resolution mass spectrometer (MS) was used for screening of aflatoxins from a variety of surfaces and the rapid quantitative analysis of a common form of aflatoxin, AFB1, extracted from corn. Sample preparation procedure and instrument parameter settings were optimised to obtain sensitive and accurate determination of aflatoxin AFB1. 84:16 acetonitrile water extracts of corn were analysed by DART-MS. The lowest calibration level (LCL) for aflatoxin AFB1 was 4 μg kg⁻¹. Quantitative analysis was performed with the use of matrix-matched standards employing the ¹³C-labelled internal standard for AFB1. DART-MS of spiked corn extracts gave linear response in the range 4-1000 μg kg⁻¹. Good recoveries (94-110%) and repeatabilities (RSD = 0.7-6.9%) were obtained at spiking levels of 20 and 100 μg kg⁻¹ with the use of an isotope dilution technique. Trueness of data obtained for AFB1 in maize by DART-MS was demonstrated by analysis of corn certified reference materials.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/19440049.2014.900572 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Applying hollow octahedron PtNPs/Pd-CuO nanozyme and highly conductive AuPtNPs/Ni-Co NCs to colorimetric -electrochemical dual-mode aptasensor for AFB1 detection.
Anal Chim Acta
February 2025
College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China.
Background: Aflatoxin B1 (AFB1) is a secondary metabolite produced by Aspergillus flavus and Aspergillus parasiticus. This toxin is highly carcinogenic and toxic, posing a serious threat to human and animal health. AFB1 primarily enters the human body through contaminated food, particularly peanuts, corn, nuts, and wheat.
View Article and Find Full Text PDFColloidal gold immunochromatographic assay for the detection of total aflatoxins in cereals.
Food Chem
January 2025
State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China. Electronic address:
Aflatoxins (AFTs) are highly carcinogenic and mainly contaminate cereals. In this study, we designed and screened a hapten by analyzing the same characteristic groups of AFTs (AFB, AFB, AFG and AFG), prepared a monoclonal antibody (mAb) 4C11 with a high sensitivity and specificity that can simultaneously detect all the main AFTs, and established a colloidal gold immunochromatographic assay (CG-ICA) for the detection of AFTs in cereals. The limits of detection (LODs) were 0.
View Article and Find Full Text PDFCo-administration of Rifampicin and Boswellia Serrata Mitigates Testicular Toxicity Caused by Aflatoxin B1.
Toxicon
January 2025
Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey.
The current study was aimed to investigate the effect of rifampicin (Rif), a stimulator of P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP), on limiting the passage of AFB1 (Aflatoxin B1) into testicular tissue. The second objective was to examine the potential protective effects of Boswellia serrata extract (BSE), which exhibits a strong antioxidant capacity, alone or incombination with Rif against testicular damage induced by AFB1. A total of 49 male Sprague-Dawley rats were randomly divided into seven experimental groups as follows: control (placebo), Rif (10 mg/kg), BSE (500 mg/kg), AFB1 (0.
View Article and Find Full Text PDFDegradation of aflatoxin B in corn by water-assisted microwave irradiation and its kinetic.
Toxicon
January 2025
College of Food Science and Technology, Henan University of Technology, Zhengzhou, 450001, China. Electronic address:
Aflatoxin B (AFB) is a highly toxic, carcinogenic, teratogenic, and mutagenic mycotoxin commonly found in corn. In this work, water-assisted microwave irradiation (WMI) was used to degrade AFB in corn, during which the influencing factors and kinetics of AFB degradation were also studied. The results showed that the degree of corn crushing, the heating rate of WMI, the temperature of WMI, the solid-liquid ratio, the initial content of AFB and the microwave power were all important factors affecting the degradation of AFB.
View Article and Find Full Text PDFAFB1 consolidates HBV harm to induce liver injury and carcinogenic risk by inactivating FTCD-AS1-PXR-MASP1 axis.
Toxicology
January 2025
Department of Pharmacology, Shantou University Medical College, Shantou 515041, China. Electronic address:
Aflatoxin B1 (AFB1) has been reported to synergize with hepatitis B virus (HBV) to induce development of hepatocellular carcinoma (HCC). Precise daily exposure to AFB1 and its contribution to liver injury have not been quantified and have even been disregarded due to lack of convenient detection, and the strong species specificity of HBV infection has restricted research on their synergistic harm. Hence, our objective was to investigate the molecular mechanisms by which AFB1 exacerbates HBV-related injury.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!