food safety – Page 5

In Vitro Screening of the Antifungal and Antimycotoxin Effects of a Stilbenoids-Rich Grapevine Cane Extract on Fusarium graminearum, Aspergillus flavus and Penicillium expansum

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This study tested a natural extract from grapevine pruning waste to see if it could stop three dangerous fungi that produce harmful toxins in crops. The extract worked well at stopping both fungal growth and toxin production, with effects that lasted even after the extract was removed. These results suggest that grapevine waste could be turned into a natural fungicide to protect crops from contamination.

Modeling Temperature Requirements for Growth and Toxin Production of Alternaria spp. Associated with Tomato

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Researchers studied how temperature affects three types of Alternaria fungi that infect tomatoes and produce harmful toxins. They found that warm temperatures between 25-30°C are best for fungal growth and toxin production, though different species prefer slightly different temperatures. The study created mathematical formulas to predict when these fungi will contaminate tomatoes, which could help farmers prevent losses and protect food safety.

Mechanism of Enzyme Activity Regulation and Strain-Specific Response of Lentinula edodes Cultivation Adaptability Under Peach Wood Substrate

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This study shows that shiitake mushrooms can be successfully grown on peach wood waste from orchards, which reduces costs and helps the environment. While high amounts of peach wood initially slow mushroom growth, the mushrooms adapt through natural enzyme changes that boost final yields. The resulting mushrooms have better nutrition and remain safe to eat, making this an excellent way to use agricultural waste sustainably.

Updated safety evaluation of the food enzyme AMP deaminase from the non‐genetically modified Streptomyces murinus strain AE‐DNTS

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This study evaluated the safety of an enzyme called AMP deaminase that is used in food processing, particularly for making yeast products and mushroom extracts. Researchers tested the enzyme for genetic damage and toxicity using laboratory studies. The results showed the enzyme is safe for use in food manufacturing at the recommended levels, with a very large safety margin between the amounts used in food and amounts that might cause harm.

Removal of Aflatoxin B1 by Edible Mushroom-Forming Fungi and Its Mechanism

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This research discovered that edible mushroom varieties, particularly Bjerkandera adusta, can remove harmful aflatoxin B1 poison from food and animal feed. The mushroom fungi work by binding the toxin to their cell structures, acting like a sponge that soaks up the dangerous chemical. This natural method is safer and more practical than chemical or heat-based approaches because it doesn’t damage the nutritional value of food while making it safer to eat.

Effect of Temperature, Relative Humidity, and Incubation Time on the Mycotoxin Production by Fusarium spp. Responsible for Dry Rot in Potato Tubers

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This research examines how temperature and humidity during potato storage affect the growth of disease-causing fungi and their toxic byproducts. The study found that warmer, more humid storage conditions dramatically increase both fungal growth and dangerous toxin production in potatoes. Certain potato varieties became more susceptible to disease as they were stored longer. The toxin levels detected exceeded European safety limits, suggesting contaminated potatoes should be removed to protect consumer health.

What’s in a name? Fit-for-purpose bacterial nomenclature: meeting report

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Scientists are discovering and renaming bacteria so rapidly that doctors and other professionals sometimes don’t recognize the new names, which can cause confusion in patient care and food safety. This meeting brought together experts to discuss the problem and create better systems for managing these changes. The key finding is that when bacteria get new scientific names, there needs to be better communication with the practical users like clinicians so they stay informed and can provide proper treatment.

A Review of the Occurrence of Alpha-Emitting Radionuclides in Wild Mushrooms

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Wild mushrooms can absorb radioactive elements from soil, particularly polonium and radium which accumulate to high levels. The amount of radioactivity varies greatly depending on where mushrooms are grown and what species they are. In most areas, naturally occurring radioactive elements are the main concern, but mushrooms from regions affected by nuclear accidents like Chernobyl may contain dangerous artificial radioactive isotopes. People who frequently consume wild mushrooms from certain regions could potentially exceed safe annual radiation exposure limits.

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.

Diet and Blood Concentrations of Essential and Non-Essential Elements among Rural Residents in Arctic Russia

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Indigenous Arctic residents who eat traditional foods like fish and hunted game get important nutrients but may also absorb toxic metals like mercury, arsenic, and lead. This study of Russian Arctic communities found that eating different fish species and hunted goose was linked to higher levels of these metals in the blood. Interestingly, selenium from fish appeared to help protect against mercury toxicity, though the metals still warrant concern.

Research Topic: food safety