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An investigation to find the lowest temperature that kills all the yeast cells in a suspension of either dried or fresh baker’s yeast
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| Submitted: Sun Apr 06 2008
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An investigation to find the lowest temperature that kills all the yeast cells in a suspension of either dried or fresh baker's yeast. The aim of this investigation is to determine at what exact temperature all the yeast cells in a 10% suspension die with no interference from other factors which may affect the results. As shown in my appendix I am looking for when the decline part of the mixtures metabolic state is absolutely 0. (ref. appendix 1) Bakers yeast is a species of yeast formally known as Saccharomyces Cerevisiae. It is eukaryotic and its key metabolic process under normal conditions used in producing cellular energy required is aerobic respiration. When a yeast cell respires aerobically alike human tissue cells sugar (glucose/sucrose) and oxygen are used and produce along with energy (ATP) the waste products of water and carbon dioxide.(1) C6H12O6 + 6O2 6CO2 + 6H2O A main use for yeast...
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