Erk, İrem (2013) Comparison of protein amount of same kind and same amount of skimmed pasteurized milk, which are heated under different wavelength power. Other thesis, TED ANKARA COLLEGE FOUNDATION PRIVATE HIGH SCHOOL.
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Abstract
Heating milk is a duration, which is usually used for processing of several dairy products. In today’s fast lives use of microwave is become widespread for saving time. A major consequence of the heat treatment of milk is the damages of the proteins. The microwave effect on proteins, which are found dairy products, cannot be clarified yet. The purpose of this experiment is to investigate the amount of totally proteins in which is exposed to different mıcrowave electrical power. This studies question was:‘‘ how does the quantity of proteins in pasteurized milk change when it is heated in a microwave oven, for different wavelengths. It was hypothesized that; a significant mean difference would occur, in the amount of proteins of milk in which was exposed to different wavelengths microwave. In order to examine the hypothesis and answer the research question, 25 samples of 5 ml milk were divided 5 groups. Groups were exposed in unclosed vessels to the microwaves action for each of the following 5 different wavelengths during 30 second. The Pierce BCA protein Assay was used to measure the protein amount. This method is a detergent – compatible formulation based on bicinchoninic acid (BCA) for the colorimetric detection and quantitation of total protein. The results showed that the averages of protein increased during the microwave exposure. ANOVA results revealed that there was a significant mean difference among the groups. We expected that the protein amount of microwaved milk would decrease depending upon the denaturation of protein. Contrary to expectation, protein amount in milk is increased in our investigation. This amazing result can be explained by evaporation during the microwave exposure. These results indicate that the total amount of protein in milk does not affected during microwave heating.
| Item Type: | Thesis (Other) |
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| Additional Information: | Supervisor: Hatice Özmen, IB Notu: D |
| Uncontrolled Keywords: | pasteurized milk, microwave oven |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Depositing User: | Users 114 not found. |
| Date Deposited: | 17 Sep 2013 10:28 |
| Last Modified: | 17 Sep 2013 10:28 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/375 |
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