Measuring the efficiency of various carbohydrate substrates in yeast fermentation.
Cherrishe Brown
October 3, 2007
Dieldrich Bermudez
BSC 2010L Sect# 0560
Discussion
As expected in the experiment Glucose, Fructose, and Sucrose were all utilized for fermentation. Based on the rate of evolution of CO2 the yeast was most efficiently able to utilize the substrate Glucose, followed by Sucrose and Fructose respectively. Given more time I believe that Sucrose would have surpassed glucose in total rate (ml CO2/hr) as time and energy was taken as the yeasts cells broke Sucrose down into its glucose and Fructose monomers. That being said with all the substrates being of .14M in addition to being the limiting reagent of the reaction Sucrose entered .14M Glucose and .14M Fructose into the glycolytic pathway where as Glucose only entered .14M of glucose into the glycolytic pathway. Thus Sucrose entered more sugar and had more sugar to be used up by the reaction. However this would have......
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