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- W4254211037 abstract "In this work a procedure was optimized to recover Salmonella typhimurium from a vegetable compost after its artificial contamination. A combination of a bacteriological method, immunomagnetic separation (IMS) and polymerase chain reaction (PCR) techniques allowed a reduction in the detection time to 30 h while maintaining high specificity. The lower threshold of direct amplification from extracts of contaminated compost was 10 8 salmonellae g -1 . To improve the sensitivity, a combination of shortened pre-enrichment and enrichment procedures was optimized and the growth of S. typhimurium evaluated. Immunomagnetic separation using anti- Salmonella Dynabeads™ permitted the recovery of 30 salmonellae per 50 g of compost, the same value obtained with the traditional microbial method, which takes two days longer. Alternative purification methods to reduce organic compound inhibition of the PCR reaction mixture did not improve Salmonella detection under a threshold of 10 5 salmonellae g -1 ." @default.
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- W4254211037 date "2000-12-01" @default.
- W4254211037 modified "2023-10-13" @default.
- W4254211037 title "Recovery of Salmonella typhimurium from compost with the IMS-PCR method" @default.
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- W4254211037 doi "https://doi.org/10.1177/0734242x0001800608" @default.
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