Test For Starch

Question 1

What is the first step in testing for starch in food?

Answer 1

Put a few drops of the food solution into the spotting tile

This is the initial step to prepare the sample for testing.

Question 2

What reagent is added to the food sample when testing for starch?

Answer 2

Two or three drops of iodine solution

Iodine is used to indicate the presence of starch.

Question 3

What indicates a positive result when testing for starch?

Answer 3

A blue-black color is seen

This color change confirms the presence of starch in the sample.

Question 4

What indicates a negative result when testing for starch?

Answer 4

No color change or brown color is seen

This indicates that starch is not present in the food sample.

Question 5

Fill in the blank: A positive result for starch is indicated by a _______.

Answer 5

blue-black color

Question 6

True or False: A brown color in the food sample indicates the presence of starch.

Answer 6

False

A brown color suggests that starch is absent.