Biofuels companies seek to annex the rate of grain alcohol ware through fermentation of Saccaromyces cerevisiae. Fermentation converts sugar to energy, yielding ethanol and carbon dioxide. Ethanol produced from sugar or grain is presently the most common renewable fuel (Hahn-Hägerdal, et al., 2006). Our experiment was conducted in order to determine if increasing the amount of glucose in a barm suspension would increase the production of carbon dioxide, thereof increasing the rate of the moveion. Anaerobic yeast fermentation of glucose allow cause a change in pressure in a tube due to carbon dioxide production. This information provided brave to develop a method that was sufficient in scrutiny the rate of carbon dioxide production using different amounts of glucose. We hypothesized that by increasing the amount of glucose the rate of carbon dioxide production would increase due to there being more glucose for the yeast to react with.
Methods:
A solution of 1.5 ml of glucose solution was mixed with 1.5 ml of yeast suspension and drawn into a 5 ml spray. Another solution was created, but with 3.0 ml of glucose and 1.5 ml of yeast suspension, also drawn into a 5 ml syringe. 0.5 ml of air was then drawn into each syringe.
Each of the solutions was incubated at room temperature for approximately five minutes. While the solutions were incubating, two serological pipettes were dipped in a red dyed water system solution to withdraw a droplet of water to use as a measuring guide. The red droplets of water were moved to the cypher mark of the pipettes by tilting them horizontally. The pipettes were attached to the syringes with a piece of no-good tubing. A ring stand and clothes pins supported the syringes and pipettes so they would stand vertically. A timer was used to record the garishness shown on the pipette, which represented the amount of carbon dioxide being produced, at one minute increments for approximately 30 minutes.
Results:
In the syringe that...If you want to get a full essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment