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Alcohol Fermentation—Demonstration Kit

By: The Flinn Staff

Item #: FB1626

Price: $25.70

With the Alcohol Fermentation Demonstration Kit for biochemistry, show unique color changes that will help your students understand the fermentation process.

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This item can only be shipped to schools, museums and science centers

Product Details

The unique color changes will help your students understand the fermentation process. A glucose solution is inoculated with yeast in an Erlenmeyer flask and then connected with a tube to a gas-collecting chamber. As fermentation occurs, the depletion of the oxygen in the flask causes a dramatic color change in the indicator in the flask. Simultaneously, the carbon dioxide produced from the reaction causes a color change in a different indicator solution in the collecting chamber. Enough indicator solutions, yeast and sugar are provided to conduct the demonstration seven times. Detailed instructions and background information are provided.

Concepts: Fermentation, pH indicators.
Time Required: One class period
Materials Provided: Glucose, phenol red solution, resazurin solution, yeast.
Note: A 250-mL flask, one-hole stopper, test tube, glass tube and plastic tubing are required for completion of the demonstration.