Tuesday, December 13, 2011

Culturing anaerobic bacteria:GasPak


The next experiment involved a GasPak which uses a chemical reaction to empty oxygen from a container. Our professor preformed this experiment after each group streaked a plate with their bacteria. First he cut the GasPak envelope and added water. Next he opened the indicator slip which is blue in the presence of oxygen and white when there is an absence. He sealed the container and placed the jar in an incubator for 48 hours. 




The next lab day we were surprised to find that our bacteria was facultated anaerobic bacteria. Facultated anaerobic bacteria can undergo aerobic respiration and fermentation. It can also grow under aerobic or anaerobic conditions.
Edward tried to seal the jar but he needed some help:(

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