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Crowley E, Bird P, Torontali M, Goetz K, Agin J, Goins D, Johnson R, Achen M, Barlowe A, Clark M, Colón-Reveles J, Dixon K, Fisher K, Hanson P, Jechorek R, Johnson L, Kelly M, Kim S, Kohler H, Kondratko D, Kupski B, McCallum K, Mills J, Mohnke F, Moon B, Olson B, Reed C, Sauter J, Thompson L. TEMPO® EC for the Enumeration of Escherichia coli in Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/93.2.576] [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
The automated method for enumeration of Escherichia coli, TEMPO<sup/> EC, in foods uses a dehydrated culture medium and enumeration card containing 48 wells across three different dilutions for the automatic determination of the most probable number (MPN). The alternative method was compared in a multilaboratory collaborative study to AOAC Official MethodSM 966.24. Six food types were artificially contaminated with E. coli: raw ground beef, bagged lettuce, cooked chicken, pasteurized crabmeat, frozen green beans, and pasteurized whole milk. All foods were analyzed for E. coli counts by 11 collaborating laboratories throughout the United States. Test portions from the six food types each contaminated at four different contamination levels were evaluated. The study demonstrated that the TEMPO EC method is a reliable, automated assay for the enumeration of E. coli in foods.
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Affiliation(s)
- Erin Crowley
- Q Laboratories, Inc., 1400 Harrison Ave, Cincinnati, OH 45214
| | - Patrick Bird
- Q Laboratories, Inc., 1400 Harrison Ave, Cincinnati, OH 45214
| | | | - Katherine Goetz
- Q Laboratories, Inc., 1400 Harrison Ave, Cincinnati, OH 45214
| | - James Agin
- Q Laboratories, Inc., 1400 Harrison Ave, Cincinnati, OH 45214
| | - David Goins
- Q Laboratories, Inc., 1400 Harrison Ave, Cincinnati, OH 45214
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Crowley E, Bird P, Torontali M, Goetz K, Agin J, Goins D, Johnson R, Achen M, Barlowe A, Clark M, Colón-Reveles J, Dixon K, Fisher K, Hanson P, Jechorek R, Johnson L, Kelly M, Kim S, Kohler H, Kondratko D, Kupski B, McCallum K, Mills J, Mohnke F, Moon B, Olson B, Reed C, Sauter J, Thompson L. TEMPO EC for the enumeration of Escherichia coli in foods: collaborative study. J AOAC Int 2010; 93:576-586. [PMID: 20480906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The automated method for enumeration of Escherichia coli, TEMPO EC, in foods uses a dehydrated culture medium and enumeration card containing 48 wells across three different dilutions for the automatic determination of the most probable number (MPN). The alternative method was compared in a multilaboratory collaborative study to AOAC Official Method 966.24. Six food types were artificially contaminated with E. coli: raw ground beef, bagged lettuce, cooked chicken, pasteurized crabmeat, frozen green beans, and pasteurized whole milk. All foods were analyzed for E. coli counts by 11 collaborating laboratories throughout the United States. Test portions from the six food types each contaminated at four different contamination levels were evaluated. The study demonstrated that the TEMPO EC method is a reliable, automated assay for the enumeration of E. coli in foods.
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Affiliation(s)
- Erin Crowley
- Q Laboratories, Inc., 1400 Harrison Ave, Cincinnati, OH 45214, USA
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