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Mycotoxins

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Corn,barley,wheat, peanuts. A. ochraceus, R. veridicatum, R. cyolopium. Ochratoxin A ... Corn,peanuts,cottonseed,etc. A. flavus, A. paraciticus. Aflatoxin ... – PowerPoint PPT presentation

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Title: Mycotoxins


1
Mycotoxins
Phreusa T. 4328701
2
What are Mycotoxins??
  • Mycotoxin is a toxin produced by a fungus under
    special conditions of moisture and temperature.

3
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4
What are Mycotoxins??
  • 5,000 years ago in China.
  • Early 1861, was reported in Russia
  • 1891, there was a report of mouldy rice in Japan
  • 1960, is the time of the discovery of aflatoxin.

5
Common Members of the Mycotoxin Family
  • Aflatoxins
  • Trichothecenes
  • Zearalenone
  • Fumonisin
  • Ochratoxins
  • Slaframine

6
Food containing Mycotoxins
7
What is Aflatoxin??
  • Aflatoxin is the name for a group of toxins
    (poisonous chemical compounds) that are produced
    by two fungi called Aspergillus flavus and
    Aspergillus parasiticus.

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9
Aflatoxins
  • Four primary aflatoxins, named B1, B2, G1 and G2
    plus two additional metabolic products, M1 and
    M2. The case with aflatoxin toxicity and
    carcinogenicity has been established for
    aflatoxin - induced mutagenic activity and DNA
    damage.

10
Foods
  • Corn
  • Barley
  • Cottonseed
  • Peanuts
  • Sorghum
  • Wheat
  • Silage
  • Tree nuts
  • Milk
  • Apples
  • Oats
  • Beans
  • Weathered grain
  • Potatoes

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Symptom
  • Edema of legs and feet
  • Abdominal pain
  • Vomit
  • Acute hepatitis
  • Convulsion
  • Cirrhosis
  • Carcinoma of liver
  • Fever
  • Jaundice
  • Acute necrosis
  • Malaise

13
Aflatoxicosis
  • Aflatoxicosis is primarily a hepatic disease.

14
Aflatoxin B1 and Tumor Induction
15
Aflatoxin B1 and Tumor Induction
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