Feeding Yeast
My experiment was with yeast and the best food for it. I wanted to know what would make the yeast grow better. I used corn syrup, gelatin, grape juice and flour mixed with water. I thought that the corn syrup, which is high in processed sugars, would produce the make the most carbon dioxide gas. Carbon dioxide is a by-product made when yeast reproduces. The flour, which is high in starch, I expect to produce some carbon dioxide and the gelatin, high in protein, not do much. And I expected the grape juice, which is high in natural sugar to be the food yeast doesn't like and make the least gas. The information that I discovered through this experiment I hope to use to increase my comprehension of baking techniques. For the actual experiment, I used four (4) ICB root beer bottles, 4 balloons, yeast and the yeast foods- corn syrup, flour/water, gelatin, and grape juice. The yeast was a solution-6¾ teaspoons o
f yeast per cup of very warm (105° to 115°) water. Into all four bottles I put four tablespoons (tbsp.) of the yeast solution. Put 1/2 cup of corn syrup into bottle one, along with the yeast solution. Into bottle two goes 1/2 cup of water and 1/2 cup of flour, and the yeast solution. Next, mix the gelatin according to directions on the package, about one-tablespoon of powder to 1/2 cup of water. The 1/2 cup of the gelatin goes into the 3rd bottle, along with 4 tbsp. of the yeast solution. Into the 4th and final bottle put in 1/2 cup of 100% grape juice and the 4 tablespoons of yeast solution. Slip a balloon over the mouth of each bottle far enough so that no gas can escape. Lay all the bottles on their sides in as warm a place as you can find (85° is ideal). In 15 min. take your first measurement. Take some string and wrap it around the balloons, then measure the length of the string to determine the circumference of the balloons. The balloon with the largest circumference will contain the most gas, and therefor contain the best food for the yeast. Take measurements every 15 min. or half hour until the balloons stop growing, in about 5 hour
Some common words found in the essay are:
References Page, Charles Cagniard, Taxi Service, corn syrup, 1/2 cup, Butter Maker, yeast solution, grape juice, Company Inc, food yeast, Rombauer Becker, Conclusion Page, yeast grow, page 2, carbon dioxide, Experimentation Page, Don Herbert, Introduction Page, gelatin grape juice, water 1/2, 15 min, cup water 1/2, grape juice natural, 1/2 cup water, water 1/2 cup,
Approximate Word count = 780
Approximate Pages = 3 (250 words per page double spaced)
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