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A fast, cost-efficient, sensitive and accurate assay method for zearalenone in edible oils is described, as an alternative to gel permeation chromatography (GPC). Oil samples were extracted with an alkaline mixture of methanol and water (methanol +10 g/l aqueous ammonium carbaminate solution, pH 9; 9 + 1, v+v). The pH of the extract was neutralized with hydrochloric acid and then concentrated to dryness. The residue was dissolved with HPLC solvent, and zearalenone was determined by high-performance liquid chromatography with fluorometric detection (HPLC-FLD). The method was successfully validated for two matrices, maize oil and rapeseed oil. The recovery rate was 87%, and the coefficient of variation was 2.8% in a rapeseed oil sample contaminated with 27 µg zearalenone/kg. At a signal-to-noise ratio of 3:1, the method detection limit was 10 µg/kg, which was considered to be adequate in view of the present European Union maximum level of 400 µg/kg.
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http://dx.doi.org/10.1007/s12550-009-0018-y | DOI Listing |
Food Chem
August 2025
College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266400, PR China. Electronic address:
Aflatoxin B1 (AFB1) and zearalenone (ZEN) in maize germs threaten the food and feed security. However, their distributions in the processed products of maize germs during cold pressed process and solvent extracted process have not been reported in detail. Nine germ samples were selected and dealt by two oil production technologies.
View Article and Find Full Text PDFCompr Rev Food Sci Food Saf
July 2025
Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, P. R. China.
Mycotoxins are a class of biological contaminants that pose significant threats to food safety, leading to substantial food waste and significant economic losses. Among these, zearalenone (ZEN), a specific mycotoxin produced by Fusarium species during the infection of grains, is particularly concerning due to its reproductive toxicity, digestive toxicity, hepatotoxicity, and immunotoxicity in various organisms. Although numerous methods for degrading ZEN have been developed, challenges still remain in removing effectively ZEN from food.
View Article and Find Full Text PDFFood Addit Contam Part A Chem Anal Control Expo Risk Assess
August 2025
Gansu Provincial Centre for Disease Control and Prevention, Lanzhou, China.
In order to understand the current situation of mycotoxin contamination and risk assessment of dietary exposure of coix seed ( sold in Gansu Province, China, a total of 67 coix seed samples were collected from the local markets and supermarkets in 14 prefectures and cities in Gansu Province. Sixteen mycotoxins were determined by isotope dilution liquid chromatography-tandem mass spectrometry. The results showed that 37.
View Article and Find Full Text PDFFood Res Int
October 2025
College of Food & Health, Zhejiang A&F University, Hangzhou 311300, PR China; National Grain Industry (High-Quality Rice Storage in Temperate and Humid Region) Technology Innovation Center, Zhejiang A&F University, Hangzhou 311300, PR China. Electronic address:
Temperature and humidity critically influence microbial dynamics and mycotoxin accumulation in stored rice, posing risks to grain quality and food safety. This study analyzed 150 rice samples from three major Chinese regions (Liaoning, Chongqing, Zhejiang) to assess microbial community shifts and their implications. Geographical factors exerted stronger effects on microbial diversity than storage duration, with bacterial Chao1 indices varying significantly (Chongqing: 322.
View Article and Find Full Text PDFJ Agric Food Chem
May 2025
College of Food Science, Southwest University, Chongqing 400715, P.R. China.
Aflatoxin B (AFB) and zearalenone (ZEN) are the most toxic and widely polluted mycotoxins in cereals. Efficient and environmentally friendly technology to eliminate AFB and ZEN is important for food safety. In this work, a novel 2-AP-grafted ultrathin porous photocatalyst (denoted as WCN-AP) was synthesized, characterized, and used for the visible-light-driven photocatalytic degradation of AFB and ZEN in cereals.
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