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What are mycotoxins?. Mycotoxins are toxic chemicals (secondary metabolites) produced by molds. What are molds?. Microorganisms. Viruses. Bacteria. 0.02-.2 µm. 0.5 - 5 um. Protists. Fungi. 2- 10 µm*. 10-20+ µm. Microorganisms. Viruses. Bacteria. 0.02-.2 µm. 0.5 - 5 um. Fungi.

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what are mycotoxins
What are mycotoxins?
  • Mycotoxins are toxic chemicals (secondary metabolites) produced by molds
slide3

Microorganisms

Viruses

Bacteria

0.02-.2 µm

0.5 - 5 um

Protists

Fungi

2- 10 µm*

10-20+ µm

slide4

Microorganisms

Viruses

Bacteria

0.02-.2 µm

0.5 - 5 um

Fungi

Protists

2- 10 µm

10-20 µm

slide5

Molds

  • Growth
    • Low moisture
    • Wide Range of pH
    • Mesophilic (25~40°C; 77~104°F) and Psychrotrophic (can grow 0 ~7°C)
    • Most aerobic
  • Significance
    • Spoilage
    • Sanitation Index
    • Health Issues
    • Produce Foods
slide7

Major Mycotoxins

Ochratoxin A

Aspergillus ochraceous

Penicillium spp.

Trichothecenes[Vomitoxin (DON)]

Fusarium graminearum

Aflatoxins

Aspergillus flavus

Aspergillus parasiticus

Fumonisins

Fusarium verticillioides

Zearalenone (F-2 Toxin)

Fusarium graminearum

why are mycotoxins important

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

why are mycotoxins important1

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

Most are not destroyed in normal cooking procedures.

why are mycotoxins important2

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

Most are not destroyed in normal cooking procedures.

They can cause cancer, birth defects, liver damage, and nervous tissue damage, etc.

why are mycotoxins important3

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

Most are not destroyed in normal cooking procedures.

They can cause cancer, birth defects, liver damage, and nervous tissue damage, etc.

Usually no treatment for mycotoxin poisoning

why are mycotoxins important4

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

Most are not destroyed in normal cooking procedures.

They can cause cancer, birth defects, liver damage, and nervous tissue damage, etc.

Usually no treatment for mycotoxin poisoning

Significant economic and trade issue.

why are mycotoxins important5

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

Most are not destroyed in normal cooking procedures.

They can cause cancer, birth defects, liver damage, and nervous tissue damage, etc.

Usually no treatment for mycotoxin poisoning

Significant economic and trade issue.

~25% of food crops affected by mycotoxigenic molds*

Global losses of foodstuffs due to mycotoxins are in the range of 1 billion tons per year*

*FAO

why are mycotoxins important6

Why are mycotoxins important?

Usually ingested in contaminated foods and feeds.

Most are not destroyed in normal cooking procedures.

They can cause cancer, birth defects, liver damage, and nervous tissue damage, etc.

Usually no treatment for mycotoxin poisoning

Significant economic and trade issue.

Globalpublic health and economic problem

acknowledgements
Acknowledgements
  • UW Food Research Institute Staff
  • Jae-Hyuk Yu
  • Chuck Czuprynski
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