Revision as of 21:20, 17 October 2016

Austin_UTexas

Kombucha Strains

Conjugation

Recapitulation

Ethanol

pH

Successfully isolated microbes from various samples of kombucha.
Identified strains of bacteria and yeast using rRNA gene sequencing.
Characterized each of the isolated microbes to facilitate further experimentation.

In a process called "recapitulation," we successfully created a kombucha-like culture by adding individual strains of microbes instead of a living culture containing the entire kombucha microbiome.
Determined that the microbe Ga. hansenii is essential for the fermentation of kombucha.
Determined that multiple strains of the yeast Lachancea fermentati are necessary for the fermentation of kombucha.

Attempted conjugation with G. oxydans.
Performed minimum inhibitory concentration experiments between G. oxydans and spectinomycin, carbenicillin and kanamycin.
Determined that G. oxydans is resistant to spectinomycin and carbenicillin.

Found in literature sequences for genes involved in the metabolism of ethanol to acetic acid in the bacterium Ga. hansenii.
Designed Golden Gate parts for the assembly of these genes into a functional construct.
Used a bromothymol blue assay to compare changes in pH resulting from fermentation in multiple strains of Lachancea fermentati isolated from our kombucha.

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