Difference between revisions of "Team:Austin UTexas/Demonstrate"
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*Determined that <i>G. oxydans</i> is resistant to spectinomycin and carbenicillin. | *Determined that <i>G. oxydans</i> is resistant to spectinomycin and carbenicillin. | ||
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*Determined that two distinct strains of the yeast <i>Lachancea fermentati</i> are necessary for the fermentation of kombucha, including one that appears to produce high quantities of C02. | *Determined that two distinct strains of the yeast <i>Lachancea fermentati</i> are necessary for the fermentation of kombucha, including one that appears to produce high quantities of C02. | ||
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*Used a bromothymol blue assay to compare changes in pH resulting from fermentation in multiple strains of <i>Lachancea fermentati</i> isolated from our kombucha. | *Used a bromothymol blue assay to compare changes in pH resulting from fermentation in multiple strains of <i>Lachancea fermentati</i> isolated from our kombucha. | ||
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*Found literature describing three putative promoters in <i>Gluconobacter oxydans</i> that increase transcription under acidic conditions, and currently characterizing these sequences. | *Found literature describing three putative promoters in <i>Gluconobacter oxydans</i> that increase transcription under acidic conditions, and currently characterizing these sequences. | ||
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Revision as of 23:54, 19 October 2016
Demonstrate
For the gold medal “Demonstrate your work” requirement, we have shown that we can recreate kombucha from scratch by adding isolated strains of microbes to tea media. Our tea media, made with water, black tea, and sucrose, simulates the starting mixture used to brew kombucha. We have performed extensive recapitulation trials to determine which strains of yeast and bacteria are necessary for brewing kombucha. Cataloguing these vital strains is a necessary step toward modifying the starting population to create a “designer beverage” with a variety of properties that could benefit kombucha consumers and manufacturers outside the lab.
Click the images below to learn more about our results!
Kombucha Strains
Conjugation
Recapitulation
Ethanol
pH
