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Feldsine PT, Lienau AH, Leung SC, Mui LA, Humbert F, Bohnert M, Mooijman K, Schulten S, Veld PI, Rollier P, Leuschner R, Capps K, Agin J, Allaert C, Asmundson R, Asperger H, Bohnert M, Bound A, Dixon L, Donda S, Espersen M, Foster K, Gangar V, Hammack T, Humbert F, Humes L, in’t Veld P, James L, Jost-Keating K, Kalinowski R, Kwan J, Lamb J, Leung S, Lienau A, Littell A, Mooijman K, Mui L, Ott M, Qvist S, Roberts D, Ruby R, Rude R, Santos C, Schulten S, Sellers R, Smith M, Solis D, Stecchini ML, Stegeman H, Steneryd A, Suktankar V, Wiberg C, Young V. Detection of Salmonella in Fresh Cheese, Poultry Products, and Dried Egg Products by the ISO 6579 Salmonella Culture Procedure and the AOAC Official Method: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.2.275] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Three food types were analyzed for the presence of Salmonella by the AOAC culture method and by the International Organization for Standardization (ISO 6579:2002) culture method. Paired test portions of each food type were simultaneously analyzed by both methods. A total of 21 laboratories representing federal government agencies and private industry, in the United States and Europe, participated in this interlaboratory study. Foods were artificially contaminated with Salmonella and competing microflora if naturally contaminated sources were not available. No statistical differences (p < 0.05) were observed between the AOAC and ISO culture methods for fresh cheese and dried egg products. A statistically significant difference was observed for one of the 2 lots of poultry from the first trial. The poultry meat used in this run was radiation sterilized, artificially contaminated with Salmonella and competitive flora, and then lyophilized. A second trial was conducted with 2 separate lots of raw ground chicken that were naturally contaminated. The results from the second trial showed no statistical difference between the 2 culture methods. A third trial involving 4 laboratories was conducted on 2 separate lots of naturally contaminated raw poultry. Again, no statistically significant differences occurred. It is recommended that ISO 6579:2002 culture method for Salmonella be adopted Official First Action for the analysis of fresh cheese, fresh chilled and frozen poultry, and dried egg products.
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Affiliation(s)
| | - Andrew H Lienau
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | | | - Linda A Mui
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - Florence Humbert
- Agence Française de Sécurité Sanitaire des Aliments, Laboratoire d'Étude et de Recherches Avicoles et Porcines, BP 53, 22440, Ploufragan, France
| | - Marylène Bohnert
- Agence Française de Sécurité Sanitaire des Aliments, Laboratoire d'Étude et de Recherches Avicoles et Porcines, BP 53, 22440, Ploufragan, France
| | - Kirsten Mooijman
- National Institut of Public Health and Environment, Microbiological Laboratory for Health Protection, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Saskia Schulten
- National Institut of Public Health and Environment, Microbiological Laboratory for Health Protection, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Paul In’t Veld
- Regional Inspectorate South, PO Box 2280, 5202 CG's-Hertogenbosch, Rijzertlaan 19, 's-Hertogenbosch, The Netherlands
| | - Patricia Rollier
- Centre d'Étude et de Controle des Analyses en Industrie Laitière, BP 89, 39801 Poligny, France
| | - Renata Leuschner
- Ministry of Agriculture, Fisheries, and Food, Control Science Laboratory, Sand Hutton, Y041 1LZ York, United Kingdom
| | - Katherine Capps
- Ministry of Agriculture, Fisheries, and Food, Control Science Laboratory, Sand Hutton, Y041 1LZ York, United Kingdom
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Hammack TS, Amaguaña RM, Andrews WH, Al-Hasani SM, Asmundson R, Battista K, Beatty SJ, Berges-Soubies VA, Bozicevich T, Brooks D, Case J, Coles C, Copeland F, Davis-Debella PE, Entis P, Feldsine P, Fourcade L, Garcia GR, Goins DG, Jackson T, Koch S, Lafogiannis JA, Lee J, Lerner I, McIntyre D, McKee B, McNally S, Muchnik V, Mui L, Pfundheller R, Raghubeer EV, Rains D, Ruscica G, Schmieg J, Sellers R, Smoot M, Sobol R, Thunberg R, Torres S, Trinidad LF, Tuncan E, Watson JM. Rappaport-Vassiliadis Medium for Recovery of Salmonellaspp. from Low Microbial Load Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/84.1.65] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Twenty-three laboratories participated in a collaborative study to compare the relative effectiveness of Rappaport-Vassiliadis (RV) medium incubated at 42°C, selenite cystine (SC) broth (35°C), and tetrathionate (TT) broth (35 and 43°C) for recovery of Salmonella from the following foods with a low microbial load: dried egg yolk, dry active yeast, ground black pepper, guar gum, and instant nonfat dry milk. For dry active yeast, lauryl tryptose (LT) broth, incubated at 35°C, was used instead of SC broth. All of the foods were artificially inoculated with single Salmonella serovars, that had been lyophilized before inoculation, at high and low target levels of 0.4 and 0.04 colony forming units/g food, respectively. For analysis of 870 test portions, representing all of the foods except yeast, 249 Salmonella-positive test portions were detected by RV medium, 265 by TT broth (43°C), 268 by TT broth (35°C), and 269 by SC broth (35°C). For analysis of 225 test portions of yeast, 79 Salmonella-positive test portions were detected by RV medium, 79 by TT broth (43°C), 84 by TT broth (35°C), and 68 by LT broth (35°C). RV medium was comparable to, or even more effective than, the other selective enrichments for recovery of Salmonella from all of the foods except guar gum. It is recommended that RV (42°C) and TT (35°C) be used with foods that have a low microbial load, except for guar gum for which SC (35°C) and TT (35°C) are recommended.
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Affiliation(s)
- Thomas S Hammack
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, HFS-516, 200 C St, SW, Washington, DC 20204
| | - R Miguel Amaguaña
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, HFS-516, 200 C St, SW, Washington, DC 20204
| | - Wallace H Andrews
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, HFS-516, 200 C St, SW, Washington, DC 20204
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Persigehl T, Mojahed H, Mui L, Siegel A, Laue H, Heindel W, Arias-Mendoza F, Schwartz L. Multi-parametrisches MR-Protokoll zur morphologischen und funktionellen Evaluierung von Hepatozellulären Karzinomen (HCC). ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Persigehl T, Mojahed H, Mui L, Siegel A, Laue H, Heindel W, Arias-Mendoza F, Schwartz L. Klinische Evaluierung der diagnostischen Qualität eines multi-parametrischen MR-Protokolls zum Staging und Therapiemonitoring von Hepatozellulären Karzinomen (HCC). ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1329759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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