FOOD TESTS PRACTICALS/ Episode one (TEST FOR STARCH)

This video is about practicals for food tests.Please enjoy.

Title: Food Tests Practicals - Episode One: Test for Starch

Introduction:
Welcome to the first episode of Food Tests Practicals! In this episode, we will be conducting a simple test to detect the presence of starch in food items. Starch is a complex carbohydrate that is commonly found in foods such as potatoes, rice, bread, and pasta. By performing this test, we can identify if a particular food item contains starch.

Materials Needed:
1. Food items for testing (recommended: potato, bread, and rice)
2. Iodine solution
3. Test tubes
4. Dropper or pipette
5. Beaker or container for water bath
6. Water

Procedure:
1. Start by setting up a water bath. Fill a beaker or container with water and heat it until it reaches a gentle simmer.
2. Take the food items you wish to test (potato, bread, and rice) and cut small pieces of each. Ensure that the pieces are roughly the same size.
3. Label your test tubes with the names of the food items you are testing.
4. Place a piece of each food item into their respective labeled test tubes.
5. Add a few drops of iodine solution to each test tube using a dropper or pipette.
6. Observe the color change that occurs. Starch reacts with iodine to produce a dark blue or black color.

Results and Interpretation:
Positive Result - If the color of the solution changes to dark blue or black, it indicates the presence of starch in the tested food item.
Negative Result - If the color of the solution remains unchanged (brown or yellow), it suggests the absence of starch in the tested food item.

Conclusion:
In this episode of Food Tests Practicals, we performed a test to detect the presence of starch in food items using iodine solution. By observing the color change in the solution, we can determine if a food item contains starch. Starch is an essential carbohydrate in our diet, providing energy and serving as a storage form of glucose in plants. Stay tuned for more practical episodes on food tests to expand your knowledge of food science!