Airborne soil particulates as vehicles for Salmonella contamination of tomatoes

The presence of dust is ubiquitous in the produce growing environment and its deposition on edible crops could occur. The potential of wind-distributed soil particulate to serve as a vehicle for S. Newport transfer to tomato blossoms and consequently, to fruits, was explored. Blossoms were challenge...

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Bibliographic Details
Published in:International journal of food microbiology 2017-02, Vol.243, p.90-95
Main Authors: Kumar, Govindaraj Dev, Williams, Robert C., Al Qublan, Hamzeh M., Sriranganathan, Nammalwar, Boyer, Renee R., Eifert, Joseph D.
Format: Article
Language:English
Subjects:
air
Autoclaving
Bioluminescence
biophotonics
Brushes
calyx
Compressed air
Contact
Contamination
crops
Crops, Agricultural - microbiology
Dust
Flowers - microbiology
food contamination
Food contamination & poisoning
Food Contamination - analysis
Fruit - microbiology
Fruits
image analysis
Internalization
Lycopersicon esculentum - microbiology
Particulate Matter - analysis
Particulates
Pathogens
pedicel
Salmonella
Salmonella - isolation & purification
Salmonella Newport
Soil
Soil contamination
Soil dispersion
Soil Microbiology
Soil particulate
Soil pollution
Soils
Tomato
Tomatoes
Ultrasonic testing
Wind
Wind currents
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Summary:The presence of dust is ubiquitous in the produce growing environment and its deposition on edible crops could occur. The potential of wind-distributed soil particulate to serve as a vehicle for S. Newport transfer to tomato blossoms and consequently, to fruits, was explored. Blossoms were challenged with previously autoclaved soil containing S. Newport (9.39log CFU/g) by brushing and airborne transfer. One hundred percent of blossoms brushed with S. Newport-contaminated soil tested positive for presence of the pathogen one week after contact (P
ISSN:0168-1605
1879-3460
DOI:10.1016/j.ijfoodmicro.2016.12.006