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Quantification of Fungal Colonization, Sporogenesis, and Production of Mycotoxins Using Kernel Bioassays
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Study on sampling scheme for detecting mycotoxin during wheat storage.

Yanjie Yi1,2, Kun Fan1,2, Youtian Shan1,2

  • 1School of Biological Engineering, Henan University of Technology, Zhengzhou, China.

Journal of the Science of Food and Agriculture
|February 26, 2022
PubMed
Summary
This summary is machine-generated.

Safe grain storage is crucial for food security. This study identifies key areas in stored wheat for detecting deoxynivalenol (DON) contamination, focusing on insect density and moisture levels.

Keywords:
insect densitymoisturemycotoxinsampling schemestored wheatventilation

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Area of Science:

  • Agricultural Science
  • Food Science
  • Mycology

Background:

  • Mycotoxins from mold pose significant food security risks.
  • Safe grain storage is vital for controlling contamination.
  • Standardized sampling schemes for mycotoxin detection in stored grain are lacking globally.

Purpose of the Study:

  • To investigate deoxynivalenol (DON) contamination in stored wheat.
  • To identify optimal sampling strategies for mycotoxin detection in grain storage.
  • To establish a scientific basis for standardizing wheat sampling schemes.

Main Methods:

  • Analysis of deoxynivalenol (DON) in stored wheat samples.
  • Correlation analysis between wheat moisture, insect density, and DON content.
  • Assessment of DON distribution in relation to wheat depth and ventilation.

Main Results:

  • Wheat moisture content is highly correlated with DON levels (P < 0.01).
  • Increased corn weevil density significantly elevates DON content in wheat.
  • DON contamination is concentrated 14-20 cm below the wheat surface.
  • Ventilation decreased moisture but increased DON, especially in poorly aerated areas.

Conclusions:

  • Key sampling areas for mycotoxin detection include zones with high insect density (14-20 cm depth) and poorly ventilated, humid upper layers (H1 position).
  • This research provides a scientific foundation for standardizing wheat sampling protocols to monitor mycotoxin contamination during storage.