how to test protein and fats
Answers
How do you test if protein is present in food?
Procedure:
1)Add a small amount of calcium oxide and 5 drops of milk to a test tube.
2)Add three drops of water.
3)Dampen the litmus paper with water.
4)Carefully heat the test tube in a flame.
5)If protein is present in a food (positive test for protein), the litmus paper will change color from red to blue.
Test for Fats
Fat is a major source of energy and also aids your body in absorbing fat soluble vitamins. You need a minimum of 10 to 20 percent of your overall calories as fat .Test if a food item contains fat.
1)Take a small quantity of the food item to be tested.
2)Wrap the food item in a piece of paper and crush it.
3)Straighten the paper.
4)Dry the paper by keeping it in sunlight for a while.
5)Observe the paper.
6)An oily patch on the paper indicates the presence of fats in the tested food item.
How do you test if protein is present in food?
Procedure:
1)Add a small amount of calcium oxide and 5 drops of milk to a test tube.
2)Add three drops of water.
3)Dampen the litmus paper with water.
4)Carefully heat the test tube in a flame.
5)If protein is present in a food (positive test for protein), the litmus paper will change color from red to blue.
Test for Fats
Fat is a major source of energy and also aids your body in absorbing fat soluble vitamins. You need a minimum of 10 to 20 percent of your overall calories as fat .Test if a food item contains fat.
1)Take a small quantity of the food item to be tested.
2)Wrap the food item in a piece of paper and crush it.
3)Straighten the paper.
4)Dry the paper by keeping it in sunlight for a while.
5)Observe the paper.
6)An oily patch on the paper indicates the presence of fats in the tested food item.
[the above answer is excellent so, i have posted it once again..............]