Abstract
BACKGROUND: Mycotoxin produced by mould is one of the most serious contamination sources in food security. Safe storage of grain has become more important to control food security. Currently, there is no officially approved or standardized sampling scheme for detecting mycotoxin in grain storage worldwide. RESULTS: In this study, deoxynivalenol (DON) was taken as a typical mycotoxin in stored wheat to be detected. Population density of corn weevil could not significantly increase wheat moisture, but wheat moisture was highly significantly and positively correlated with DON content (P < 0.01). Corn weevil density significantly increased the DON content in wheat. DON contamination degree was mainly distributed in the region of 14-20 cm below the surface layer of wheat. In the process of ventilation and dehumidification during the storage period, moisture of wheat decreased slightly with the extension of ventilation, but the DON content in wheat increased significantly. Combined with the analysis of ventilation, DON content in the upper layer and H1 position, where the wind direction is not easy to reach, increased significantly. CONCLUSION: Areas with high insect population density (14-20 cm below the surface layer of stored wheat) and low ventilation and high humidification (H1 position in the upper layer) should be taken as the key cutting sample areas for detecting mycotoxin during the period of grain storage. This study provides for the first time a scientific basis for the standardization of the wheat sampling scheme to monitor mycotoxin contamination during wheat storage. © 2022 Society of Chemical Industry.
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Claims 8
Claim · model-written summary
Population density of corn weevil could not significantly increase wheat moisture.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- corn weevile0pest
- Outcome
- wheat moisturee0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Population density of corn weevil could not significantly increase wheat moisture”
t0“wheat”
Claim · model-written summary
wheat moisture was highly significantly and positively correlated with DON content (P < 0.01).
- Taxon
- wheatTriticum aestivumt0
- Compound
- wheat moisturee0
- Outcome
- DON contente0
- Direction
- positivelye0
- Value
- P < 0.01e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat moisture was highly significantly and positively correlated with DON content (P < 0.01)”
t0“wheat”
Claim · model-written summary
Corn weevil density significantly increased the DON content in wheat.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- Corn weevile0pest
- Outcome
- DON contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn weevil density significantly increased the DON content in wheat”
t0“wheat”
Claim · model-written summary
DON contamination degree was mainly distributed in the region of 14-20 cm below the surface layer of wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- wheate0
- Outcome
- DON contamination degreee0
- Qualifier
- 14-20 cm below the surface layere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DON contamination degree was mainly distributed in the region of 14-20 cm below the surface layer of wheat”
t0“wheat”
Claim · model-written summary
moisture of wheat decreased slightly with the extension of ventilation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- ventilatione0
- Outcome
- moisture of wheate0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moisture of wheat decreased slightly with the extension of ventilation”
t0“wheat”
Claim · model-written summary
In the process of ventilation and dehumidification during the storage period, moisture of wheat decreased slightly with the extension of ventilation, but the DON content in wheat increased significantly..
- Taxon
- wheatTriticum aestivumt0
- Treatment
- ventilatione0
- Outcome
- DON contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the process of ventilation and dehumidification during the storage period, moisture of wheat decreased slightly with the extension of ventilation, but the DON content in wheat increased significantly.”
t0“wheat”
Claim · model-written summary
DON content in the upper layer and H1 position, where the wind direction is not easy to reach, increased significantly.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- DON contente0
- Direction
- increasede0
- Setting
- H1 positione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DON content in the upper layer and H1 position, where the wind direction is not easy to reach, increased significantly”
t0“wheat”
Claim · model-written summary
Sampling should target insect-dense and poorly ventilated humid wheat storage zones.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- key cutting sample areas for detecting mycotoxine0
- Qualifier
- 14-20 cm below the surface layer of stored wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Areas with high insect population density (14-20 cm below the surface layer of stored wheat) and low ventilation and high humidification (H1 position in the upper layer) should be taken as the key cutting sample areas for detecting mycotoxin during the period of grain storage.”
t0“wheat”