cookies. 4. Add 10 milliliters of acetone to the crushed chocolate chips in the beaker. 5. Swirl for 1 minute in a hood, or stir with a glass rod (in a well-ventilated area). 6. Carefully decant the acetone into the Petri dish, making sure the chocolate remains in the beaker. 7. Add 10 milliliters of acetone to the chocolate and repeat steps 5 and 6. 8. Allow the acetone in the Petri dish to dry overnight in a hook (or a well-ventilated area) to visualize the lipid that was extracted. 9. Allow the beaker with the chocolate to dry overnight. Weight the beaker with the chocolate. Part2. Extraction of Fat from Potato Chips 1. Weigh out 5 grams of potato chips. Break in to dime- size pieces with your fingers. 2. Repeat steps 2-9 in part 1. Part3. Extraction of Fat from Sunflower Seeds 1. Weigh out 5 grams of sunflower seeds. Crush the seeds between two pieces of foil with a hammer. 2. Repeat steps 2-9 in part 1. Results: Data Table-Visual Observations of Fat Food Describe what you see on the paper towel Chocolate cookies There is a dark wet spot on the paper towel. There are a translucent spot like the potato shape on the paper Potato chips towel. Sunflower seeds The paper has no change. Data Table-Extraction of Lipids Weight of Weight of Weight Weight Weight beaker beaker lost % Lipid Food of raw of beaker with raw with dried from extraction food food food food Chocolate 48.15 53.18 5.03 52.7873 0.3927 7.8% cookies Potato chips 49.11 54.21 5.12 53.2940 0.916 17.89% Sunflower 50.41 55.40 5.02 54.1649 1.2351 24.6% seeds
cookies. 4. Add 10 milliliters of acetone to the crushed chocolate chips in the beaker. 5. Swirl for 1 minute in a hood, or stir with a glass rod (in a well-ventilated area). 6. Carefully decant the acetone into the Petri dish, making sure the chocolate remains in the beaker. 7. Add 10 milliliters of acetone to the chocolate and repeat steps 5 and 6. 8. Allow the acetone in the Petri dish to dry overnight in a hook (or a well-ventilated area) to visualize the lipid that was extracted. 9. Allow the beaker with the chocolate to dry overnight. Weight the beaker with the chocolate. Part2. Extraction of Fat from Potato Chips 1. Weigh out 5 grams of potato chips. Break in to dime- size pieces with your fingers. 2. Repeat steps 2-9 in part 1. Part3. Extraction of Fat from Sunflower Seeds 1. Weigh out 5 grams of sunflower seeds. Crush the seeds between two pieces of foil with a hammer. 2. Repeat steps 2-9 in part 1. Results: Data Table-Visual Observations of Fat Food Describe what you see on the paper towel Chocolate cookies There is a dark wet spot on the paper towel. Potato chips There are a translucent spot like the potato shape on the paper towel. Sunflower seeds The paper has no change. Data Table-Extraction of Lipids Food Weight of beaker Weight of beaker with raw food Weight of raw food Weight of beaker with dried food Weight lost from food % Lipid extraction Chocolate cookies 48.15 53.18 5.03 52.7873 0.3927 7.8% Potato chips 49.11 54.21 5.12 53.2940 0.916 17.89% Sunflower seeds 50.41 55.40 5.02 54.1649 1.2351 24.6%