Leeds Public Health Laboratory Service. Samples,including food products,milk & water are sent to the laboratory to be tested for bacterial or other microbial contamination. The tests are varied & include growing the specimens in petri dishes,using agar as a nutrient. A swab (as seen here) or a metal loop,is used to streak the sample across the surface of the agar plate. A sample such as this contains a mixed population of organisms. Streaking is a method designed to separate & isolate individual organisms for purposes of identification or transferral for further testing | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hart-Davis, Adam / Leeds Public Health Laboratory |
Bildgröße: | 3628 px × 2480 px |
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