The Yeast of My Worries: The effects of dextrose and non-iodized salt on yeast growth

Matthew Waitt, Alexis Wylie, Haylee Stevens, jessica Spaulding, Debarati Chanda



In this experiment, we decided to observe the relationship of CO2 production in Baker’s yeast (Saccharomyces cerevisiae) in the presence of dextrose and non-iodized salt. We took this study into consideration because yeast growth is an important function in the human body. For example, yeast grows in the gut in order to assist in digestive systems. Our study could help cure diseases like leaky gut and Candida Yeast Infection, which occur when there is an overgrowth of yeast in the body. We conducted our study by combining different amounts of dextrose and non-iodized salt to yeast growth media and recorded 2 trials of the amount of CO2 released from the samples. We discovered that the growth media combined with the dextrose produced the most CO2 after a time span of 10 minutes.

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“Candida Yeast Infection Leaky Gut, Irritable Bowel and Food Allergies.” National Candida Center,

Metz, A., Trujillo, D., Morgan, C., Powerll, A., Cobbs, C. 2017. Comparing Salt and Sugar Effects on Ethanol Production in Yeast. (1-2).


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