In the Hazard Map database, we have updated all the sheets corresponding to the mycotoxins of the chemical hazards block:
- Trichothecenes T-2 and HT2
Mycotoxins are products of fungal metabolism and their ingestion, inhalation or skin absorption can cause disease or death in animals and people. The most important mycotoxins are produced by molds of the genera Aspergillus , Penicillium and Fusarium .
Among the most common mycotoxins are aflatoxins, ochratoxin A, patulin, fumonisins, zearanelone, deoxynivalenol, and T-2 and HT-2 toxins.
Posted in Aflatoxin, Aspergillus, deoxynivalenol, Food Hazard, Food Hazrd, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Toxin, Fumonsins, Fusarium Toxin, microbial contamination, Microbiology, Mold Toxin, Mould Toxin, Mycotoxin, Ochratoxin, Patulin, Penicillium brevicompactum, Trichothecenes, Zearalenone
All About Feed
Beauvericin is a Fusarium mycotoxin known for its antiviral, antibacterial, anti-inflammatory, and anticancer properties, but it also causes oxidative stress and cell death.
Although these biological activities are mainly interesting for drug development, chronic animal exposure to such a chemical via feed will certainly influence performance and health status. Even though this mycotoxin is still ‘emerging’, its presence in feed materials has been known for many years.
Beauvericin (BEA) is commonly found as a co-contaminant in grains where other Fusarium mycotoxins such as Deoxynivalenol (DON) and Zearalenone (ZEA) are present. From the feedstuffs we evaluate at Schothorst Feed Research (SFR), BEA is often detected in corn and soy hulls at levels varying from 10 to 500 µg/kg. However, much higher contamination levels have been reported by others. As was published by All About Feed in 2010, a study performed in South Korea showed that 27% of feed ingredients were then contaminated with BEA at levels up to 1.8 mg/kg (almost 4 times higher than our findings). These levels can be extremely high, reaching circa 500 mg/kg in corn as was reported by Logrieco and others in the 1990s. Although these are extreme levels and they only occur occasionally, the constant presence of this mycotoxin is feedstuffs should be of concern to nutritionists and veterinarians.
Posted in Animal Feed, BEA, Beauvericin, deoxynivalenol, DON, Food Micro Blog, Food Microbiology Blog, Food Safety, Fusarium Toxin, microbial contamination, Microbiology, mold, Mould Toxin, Moulds, Mycotoxin, Toxin, Zearalenone
All About Feed
Trouw Nutrition, a Nutreco company, recently release findings from the 2019 Global Mycotoxin Risk Analysis in a live webinar. The analysis includes more than 21,000 ingredient and finished feed samples collected from 38 countries across Europe, North America, South/Central America, Middle East/Africa and Asia.
90% of samples showed presence of DON
The analysis shows that of the global crop samples collected in 2019, more than 90% had a quantifiable presence (>100 ppb) of DON, with between 80 and 90% of samples showing FUMO, AFLA, OTA and ZEA T-2 levels were lowest, at about 70%. (Figure 1). The 2019 mycotoxin risk analysis includes analysis for individual ingredients, complete feeds and silages including small grains (wheat and barley) which tested at as high as 88% for DON, to 59% for AFLA. Among byproducts, concentrations in DDGS were significantly higher than in maize, with levels approaching 5,000 ppb. Looking at protein meals, concentrations of mycotoxins were relatively low compared to cereal grains. However, soybean meal is used at about 25-30% of monogastric diets, and hence can contribute significantly to concentration of toxins in final feed. Sunflower meal showed the greatest concentration of FUMO while levels of DON, AFLA and ZEA were lower. Among silages, 100% of maize and grass silage samples showed mycotoxin contamination with concentrations that can cause toxicity in ruminant animals.
Posted in Aflatoxin, Animal Feed, deoxynivalenol, DON, Food Micro Blog, Food Microbiology Blog, Fumonsins, microbial contamination, Microbiology, mold, Mould Toxin, Moulds, Mycotoxin, Uncategorized, Zearalenone
All About Feed
Several physical and chemical technologies are used for inactivation or elimination of the mycotoxin zearalenone. A new bacteria strain that can reduce this mycotoxin has now been added to the list.
Zearalenone (ZEA) is produced by various strains of the genus Fusarium, most notably Fusarium graminearum, Fusarium culmorum and Fusarium cerealis. The growth of Fusarium is affected by various factors (temperature, moisture content of grains, microbial interactions, etc.), and a large amount of ZEA can accumulate in mouldy crops and cereal-derived food products, which frequently leads to reproductive abnormalities of domestic animals and occasionally in hyperoestrogenism in humans.
Posted in Animal Feed, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Toxin, Lysinibacillus sp, microbial contamination, Microbiology, mold, Moulds, Mycotoxin, Uncategorized, Zearalenone
The latest edition of the annual survey, covering 18757 agricultural commodity samples from 72 countries with over 73000 analyses, highlights the main dangers from the most important mycotoxins in primary feedstuffs and their potential risk to livestock animal production.
The survey results provide an insight on the incidence of aflatoxins (Afla), zearalenone (ZEN), deoxynivalenol (DON), T-2 toxin (T-2), fumonisins (FUM) and ochratoxin A (OTA) in the primary components used for feed which include corn (maize), wheat, barley, rice, soybean meal, corn gluten meal, dried distillers grains (DDGS) and silage, among others.
RASFF-deoxynivalenol (DON) (15.28 mg/kg – ppm) and zearalenone (16.45 mg/kg – ppm) in granola purple müsli mix from Switzerland in Switzerland
Posted in deoxynivalenol, DON, food contamination, Food Hygiene, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Poisoning, food recall, Food Safety, Food Safety Alert, Food Testing, Food Toxin, Mycotoxin, Zearalenone
Since 2004, the BIOMIN Mycotoxin Survey Program constitutes the longest running, and most comprehensive survey of its kind. It details the incidence of the main mycotoxins occurring in agricultural commodities, which include aflatoxins (Afla), zearalenone (ZEN), deoxynivalenol (DON), T-2 toxin (T-2), fumonisins (FUM) and ochratoxin A (OTA).
The survey focuses on components that are used for feed such as corn, wheat, barley, rice, soybean meal, corn gluten meal, dried distillers grains (DDGS) and silage, among others.
From January to June 2018, the BIOMIN scientists have tested 8,310 samples, from different regions around the world.
Figure 1. Occurrence of mycotoxins worldwide through Q2 2018. Average of all samples collected by BIOMIN.