A Critical Evaluation of Automatic Bacterial Colony Counters.
| Autor: | Brodsky MH; Ontario Ministry of Health, Laboratory Services Branch, Environmental Bacteriology. Box 9000, Terminal A, Toronto, Ontario M5W 1R5, Canada., Ciebin BW; Ontario Ministry of Health, Laboratory Services Branch, Environmental Bacteriology. Box 9000, Terminal A, Toronto, Ontario M5W 1R5, Canada., Schiemann DA; Ontario Ministry of Health, Laboratory Services Branch, Environmental Bacteriology. Box 9000, Terminal A, Toronto, Ontario M5W 1R5, Canada. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of food protection [J Food Prot] 1979 Feb; Vol. 42 (2), pp. 138-143. |
| DOI: | 10.4315/0362-028X-42.2.138 |
| Abstrakt: | Four automatic colony counters (ACC), 3M Model 620 and Artek Models 480, 870 and 880, were evaluated for their precision and accuracy in counting bacterial colonies in pour-plates prepared using raw and pasteurized milk samples. The automatic colony counters were precise, labor saving devices. but not one of the ACC units approached our acceptability criterion that 90% of the ACC counts fall within ± 10% of the corresponding manual count. Some parameters of experimental design and instrument calibration which may significantly influence the response and performance of the automatic counters are discussed. |
| Databáze: | MEDLINE |
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