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Deciphering the Ligand-Binding Site in a DNA Aptamer Targeting Deoxynivalenol.
Biochemistry (Mosc)
December 2024
Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia.
Food safety is one of the primary demands of modern society. Mycotoxins are toxic metabolites of food-contaminating fungi. Fungi enter the food chain by infecting crops and irreversibly contaminate them due to the structural stability of mycotoxins.
View Article and Find Full Text PDFSurvey and Identification of Fusarium Head Blight Pathogens of Wheat in the Western Cape Region of South Africa.
Pathogens
January 2025
Plant Omics Laboratory, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa.
head blight (FHB) is a major disease affecting wheat production worldwide, caused by multiple species. In this study, seven strains were isolated from wheat fields across the Western Cape region of South Africa and identified through phylogenetic analysis. The strains were classified into three species complexes: the species complex (FGSC), species complex (FIESC), and species complex (FTSC).
View Article and Find Full Text PDFThe First Large Identification of 3ANX and NX Producing Isolates of in Manitoba, Western Canada.
Toxins (Basel)
January 2025
Manitoba Agriculture, 65-3rd Avenue NE, Carman, MB R1N 1Y7, Canada.
Fusarium head blight, caused by , continues to be one of the most important and devastating fungal diseases on cereal grains including wheat, barley, and oat crops. produces toxic secondary metabolites that include trichothecene type A and type B mycotoxins. There are many variants of these toxins that are produced, and in the early 2010s, a novel type A trichothecene mycotoxin known as 3ANX (7-α hydroxy,15-deacetylcalonectrin) and its deacetylated product NX (7-α hydroxy, 3,15-dideacetylcalonectrin) were identified in Minnesota, USA.
View Article and Find Full Text PDFApplying 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 PDFSynthesis of GO-SiO/ZnO/FeO nano adsorbent for preconcentration of aflatoxins in food samples using SPE-HPLC-FLD method.
Food Chem
April 2025
Department of Food Safety and Quality Control, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran.
This study demonstrates a new extraction method for determination of aflatoxins (AFs) in food samples by a GO-SiO/ZnO/FeO nanocomposite as new and effective sorbent. The nanocomposite structure was confirmed by FT-IR, XRD, EDX, FE-SEM, TEM, and mapping techniques. Optimization of the extraction process was conducted by investigating pH, adsorbent amount, sample volume, and solvent volume using central composite design (CCD).
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