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To evaluate the occurrence and persistence of Listeria species in a soil-based controlled environment agriculture system.

Environmental monitoring and equipment sanitation to mitigate Listeria risks in a soil-based controlled environment agriculture system

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To evaluate the occurrence and persistence of Listeria species in a soil-based controlled environment agriculture system.
Conducted a 1-year environmental monitoring program
Collected 169 samples from baby leaves, soil, water, and equipment surfaces
Used molecular techniques including PCR and whole genome sequencing
L. monocytogenes was detected in only one sample (0.59% prevalence)
Listeria innocua was isolated from harvesting crates and surfaces
Viable cells of L. innocua survived for up to 24 hours post-inoculation under specific conditions

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Environmental monitoring identifies Listeria monocytogenes in soil-based agriculture, suggesting targeted food safety measures.

NICOLAS et al. (2025) studied this question.

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