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What would you need to do to determine whether bacteria growing on a petri plate from the brewer jar are anaerobes?
Wiki User
∙ 13y ago
i. An anaerobic indicator.
i. An anaerobic indicator.
-anaerobic indicator, containing methylene blue, will turn white when oxygen is removed. if the bacteria grow while the anaerobic indicator is white then you know the bacteria is CAPABLE of anaerobic growth (growth in number, not size).
Wiki User
∙ 13y ago
You would need to prepare a duplicate set of petri plates, one of which must be incubated in an anaerobic environment using a gas pack or anaerobic jar. If the bacteria only grow on the plate in the anaerobic environment, they are likely anaerobes. Alternatively, you could use anaerobic culture techniques such as thioglycolate broth to confirm the growth characteristics of the bacteria in the absence of oxygen.
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