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Lab Report: Reducing Sugars

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Lab Report: Reducing Sugars
In the previous lab we used different types of reagents to help determine if the presence of proteins, starches, and reducing sugars were present in the solutions we were provided with. The purpose of the lab was to allow us to have the opportunity to view the positive and negative reactions of the solutions we used, also to understand what that meant. The reagents we used allow us to detect whether or not there was a reducing sugar, starch, or protein present in the solutions. From what I knew previous to this experiment would be that if a substance contains a reducing sugar it will have a positive reaction, meaning the test tube should have either a slightly blue color or a red color to it. However, if the substance has a negative reaction …show more content…
Focusing on the reducing sugars part of this experiment, we gathered the substances that were presented to us into each individual test tube. One of these substances include lime soda, which is the substance that I am focusing on in this lab report. Once the test tube containing lime soda received two millimeters of Benedict’s solution we put it in a beaker full of water on top of a hot plate for three minutes. By heating the test tube for three minutes it allows us to view whether or not they are reducing sugars present in this substance. If there are reducing sugars detected then the test tube will have a positive reaction, thus granting us a color that should be either slightly blue or red. However, if there are no reducing sugars and there is a negative reaction, then the test tube will not undergo a color change. After we have completed this procedure we must record our results and analyze them.
In the result of the reducing sugars being present or not in lime soda, there was a positive reaction indicating that there was. After we put the two millimeters of the Benedict’s solution in into the test tube with lime soda the beginning color was blue. Once we placed the test tube into the beaker full of water and on top of the hot plate for three minutes it gradually started to change in its color. As a result, our test tube turned from a bright blue color into an orange and a slightly bluish color. After we recorded our results we began to analyze them and discuss as a group on what had

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