title: Detection of Salmonella species in a variety of foods by the DuPont Bax system real-time PCR assay for Salmonella: first action 2013.02.
abstract: A multilaboratory study was conducted to evaluate the ability of the DuPont BAX System Real-Time PCR Assay for Salmonella to detect the target species in a variety of foods and environmental surfaces. Internal validation studies were performed by DuPont Nutrition & Health on 24 different sample types to demonstrate the reliability of the test method among a wide variety of sample types. Two of these matrixes-pork and turkey frankfurters and pasteurized, not-from-concentrate orange juice without pulp-were each evaluated in 14 independent laboratories as part of the collaborative study to demonstrate repeatability and reproducibility of the internal laboratory results independent of the end user. Frankfurter samples were evaluated against the U.S. Department of Agriculture, Food Safety and Inspection Service reference method as a paired study, while orange juice samples were evaluated against the U.S. Food and Drug Administration reference method as an unpaired study, using a proprietary media for the test method. Samples tested in this study were artificially inoculated with a Salmonella strain at levels expected to produce low (0.2-2.0 CFU/test portion) or high (5 CFU/test portion) spike levels on the day of analysis. For each matrix, the collaborative study failed to show a statistically significant difference between the candidate method and the reference method using the probability of detection statistical model.
authors: F Morgan
authors: FM
authors: Wallace
authors: Bridget
authors: B
authors: Andaloro
authors: Dawn
authors: D
authors: Fallon
authors: Nisha
authors: N
authors: Corrigan
authors: Stephen
authors: S
authors: Varkey
authors: Daniel
authors: D
authors: DeMarco
authors: Andrew
authors: A
authors: Farnum
authors: Monica
authors: M
authors: Tadler
authors: Steven
authors: S
authors: Hoelzer
authors: Julie
authors: J
authors: Weller
authors: Eugene
authors: E
authors: Davis
authors: Jeffrey
authors: J
authors: Rohrbeck
authors: George
authors: G
authors: Tice
authors: Patrick
authors: P
authors: Bird
authors: Erin
authors: E
authors: Crowley
authors: Jonathan
authors: J
authors: Flannery
authors: Kiel
authors: K
authors: Fisher
authors: Travis
authors: T
authors: Huffman
authors: Megan
authors: M
authors: Boyle
authors: M Joseph
authors: MJ
authors: Benzinger
authors: Paige
authors: P
authors: Bedinghaus
authors: Katie
authors: K
authors: Goetz
authors: William
authors: W
authors: Judd
authors: Jim
authors: J
authors: Agin
authors: David
authors: D
authors: Goins
mesh_terms: D001431:Bacteriological Techniques / Q000379:methods*; D005516:Food Microbiology; D060888:Real-Time Polymerase Chain Reaction / Q000379:methods*; D015203:Reproducibility of Results; D012475:Salmonella / Q000235:genetics / Q000302:isolation & purification*