Research Topic: food contamination

Transcriptome analysis of Ochratoxin a (OTA) producing Aspergillus westerdijkiae fc-1 under varying osmotic pressure

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A fungus called Aspergillus westerdijkiae produces a toxic substance called Ochratoxin A (OTA) that commonly contaminates foods like coffee, grapes, and wheat. Researchers used advanced gene analysis techniques to understand how salt concentration affects the fungus’s ability to produce this toxin. They found that moderate salt levels actually increase OTA production, while very high salt levels activate defense mechanisms that reduce it. These findings could help develop better strategies to prevent this dangerous contamination in our food supply.

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Design of a melting curve analysis (MCA) based on multiplex real-time PCR for detection of Aspergillus terreus and Aspergillus fumigatus in cereals and oilseeds samples

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This study developed a fast molecular test to detect harmful fungi (Aspergillus species) in grains and seeds. Traditional fungal identification takes 3-5 days, but the new PCR-based method can produce results in hours. Testing 140 grain and seed samples, the new method successfully identified two dangerous Aspergillus species that produce toxic compounds harmful to human health. This advancement helps ensure food safety by enabling quicker detection of contamination in food production facilities.

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The Role of AFB1, OTA, TCNs, and Patulin in Forensic Sciences: Applications in Autopsy, Criminal Investigations, and Public Health Prevention

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This research examines how dangerous fungal poisons (mycotoxins) found in contaminated food can be detected in deceased individuals during autopsies. These toxins, produced by common molds, can cause serious health problems including liver cancer, kidney disease, and immune system damage. The study proposes procedures for forensic investigators to collect and analyze these toxins from body tissues and fluids to help solve cases involving poisoning or chronic toxin exposure.

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Mycotoxin contamination in Malawi: A systematic review of progress and trends in contamination, knowledge, attitude, and practices

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This review examines mycotoxin (toxic mold) contamination in Malawi and found that most people—farmers, traders, and health workers—don’t know about these dangerous substances or how to prevent them. Although groundnuts and maize are well-studied, other commonly eaten foods like dried fish and mushrooms have been largely ignored in research. Despite years of efforts to educate communities, awareness remains critically low at about 24.5%, and poverty often forces people to eat contaminated food because it’s cheaper.

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Unveiling the Substrate-Dependent Dynamics of Mycotoxin Production in Fusarium verticillioides Using an OSMAC-Metabolomics Approach

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Researchers studied how different growing conditions affect the production of harmful toxins by a fungus called Fusarium verticillioides that contaminates crops. Using advanced chemical analysis techniques, they found that the type of growth medium and time of incubation significantly influenced which toxins the fungus produced and in what amounts. Growing the fungus on corn-based medium produced different toxins than growing it on barley-based medium. These findings can help develop better strategies to prevent mycotoxin contamination in food and animal feed.

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