use sugar, yeast, and balloon to show the chemical reaction taking place in bread making.

use sugar, yeast, and balloon to show the chemical reaction taking place in bread making.

The bacteria are smaller than the yeasts, and outnumber them 100 to 1 in most sourdough cultures.  Candida milleri yeast can’t eat the sugar maltose, but the bacteria can.  In this way, they can coexist without competing with one another too much, even though both will eat glucose.  The bacteria produce lactic and acetic acids, and another antibiotic called cycloheximide that kill off many of the competing and potentially harmful organisms, but leave the symbiotic yeasts and bacteria…

The bacteria are smaller than the yeasts, and outnumber them 100 to 1 in most sourdough cultures. Candida milleri yeast can’t eat the sugar maltose, but the bacteria can. In this way, they can coexist without competing with one another too much, even though both will eat glucose. The bacteria produce lactic and acetic acids, and another antibiotic called cycloheximide that kill off many of the competing and potentially harmful organisms, but leave the symbiotic yeasts and bacteria…

Kitchen Science- yeast experiment.  Show that yeast makes gas as it proofs by putting a balloon over a bottle with warm water, yeast and sugar in it.  Bake bread at the same time, and notice the little air pockets in the bread.

Kitchen Science- yeast experiment. Show that yeast makes gas as it proofs by putting a balloon over a bottle with warm water, yeast and sugar in it. Bake bread at the same time, and notice the little air pockets in the bread.

Visually show how bacteria multiplies in the "danger zone" with yeast, sugar, soda bottles, and balloons

Visually show how bacteria multiplies in the "danger zone" with yeast, sugar, soda bottles, and balloons

Science in the Kitchen (with thorough explanations and solutions to problems like altitude and boiling points imperative to cooking)

Science in the Kitchen (with thorough explanations and solutions to problems like altitude and boiling points imperative to cooking)

Make homemade soda pop at Howtosmile.org. Identify physical change, chemical change, and solutions in COSI's Make Your Own Soda Pop activity. Watch as yeast in sugar water converts sugar into carbon dioxide, creating a carbonated drink.

Make homemade soda pop at Howtosmile.org. Identify physical change, chemical change, and solutions in COSI's Make Your Own Soda Pop activity. Watch as yeast in sugar water converts sugar into carbon dioxide, creating a carbonated drink.

all about Nutritional Yeast. (culture strain of Saccharomyces cerevisiae)  B vitamins help increase energy levels. B vitamins also serve as methyl donors which decrease inflammation in the body.

all about Nutritional Yeast. (culture strain of Saccharomyces cerevisiae) B vitamins help increase energy levels. B vitamins also serve as methyl donors which decrease inflammation in the body.

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