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Detection of mycotoxins and mycotoxigenic fungi

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Presentation on theme: "Detection of mycotoxins and mycotoxigenic fungi"— Presentation transcript:

1 Detection of mycotoxins and mycotoxigenic fungi
By Abdallah Mahmoud Ahmed Hassane

2 INTRODUCTION

3 Food safety and consumer protection
Food and feed stuffs Water content Mycotoxigenic fungi Mycotoxins

4 MOST COMMON MYCOTOXINS
Fungi Substrate Mycotoxin Aspergillus flavus Maize, Groundnut, Cotton seed Aflatoxins Aspergillus parasiticus Aspergillus nomius Aspergillus ochraceus Barkey wheat Ochratoxin Aspergillus carbonerius Grapes wine, Coffee Penicillium verrucosum Wheat, Barley, Maize Penicillium expansum Apple Patulin Fusarium oxysporum Fumonisins Fusarium sp. T-2 toxin Claviceps purpurea Rye Ergot alkaloids

5

6 Secondary metabolites Intermediate Pathway

7

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9 Materials & Methods

10 Determination of moisture content Mycological examination
1 Collection of samples 2 Determination of moisture content 3 Mycological examination 4 Detection of mycotoxins in the samples 5 Mycotoxin production ability 6 Molecular Identification of mycotoxigenic fungi

11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Collection of samples

12

13 Mycotoxin production ability
CAM Amm. Vapour

14 Mycotoxin production ability

15 Detection of mycotoxins in the samples

16 Bioassay Methods for Mycotoxins
Artemia salina Bacillus cereus

17 Detection of mycotoxins
Thin layer chromatography (TLC) plates TLC solvents Detection

18 Detection of mycotoxins by HPLC

19 Detection of mycotoxins by Dipstick

20 Detection of mycotoxins by ELISA

21 Molecular Identification of mycotoxigenic fungi

22 Control of Mycotoxins Physical Chemical Biological

23 Thank you


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