Perçin, Sezin Cansın (2009) INVESTIGATING THE EFFECT OF DIFFERENT ACIDITY CAUSED BY DIFFERENT SPOONS ON THE VOLUME OF SACCHAROMYCES ROSEI FORMED. Other thesis, TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL.
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Abstract
It is known that when a vegetable such as tomato is pickled, certain volume of mold, fungi is formed. On the other hand when a metal spoon Is used instead of a wooden one, the volume of fungi is less. This might be because, when a metal and acid (vinegar solution in the pickle juice) reacts, H2 gas is released and the dissolving of this H2 gas results in a decrease in pH. It should be stated that the kind of fungi formed ‘Saccharomyces Rosei’ can only reproduce in an optimum pH of 6 to 7. But when a metal reacts with the pickle juice, the pH will be lower than the optimum value for the ‘Saccharomyces Rosei’ thus fungal reproduction will be inhibited to some extent. The objective of the study was to investigate, whether the brand of spoon used made a significant difference in the volume of fungi formed. In order to test the effect of silver nitrate, nickel, plastic and wood, 4 different data sets of 3 trials were created as well as a control group and observed for 14 days. After 14 days, it was statistically significant that less volume of fungi was formed in the data set containing nickel samples, when compared with the other data sets including the control group.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | IB Notu: C |
| Uncontrolled Keywords: | fungi, effects of acid, Saccharomyces Rosei |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Depositing User: | Kamil Çömlekçi |
| Date Deposited: | 11 Jun 2009 11:26 |
| Last Modified: | 12 Apr 2019 10:26 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/45 |
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