How do you test the presence of Carbohydrates in food items - Science - Components of Food

Question

How do you test the presence of Carbohydrates in
food items?

Saman Ahmad · Accepted Answer

Test for
carbohydrates

â€¢ To prepare a

dilute solution of
iodine, a few drops
of tincture iodine are added to a test tube half-filled with
water

When the dilute solution of iodine is added to
food items containing starch e g , raw potato, the color of the
food item changes to blue, indicating the presence of
starch

Let us perform a test to find the
presence of starch in a food item

Take a raw potato and cut it into two halves Put
one half of the potato on a plate and use a dropper to put 2-3
drops of iodine solution on it

You will observe that the color of the potato
slice changes to blue-black

The presence of this blue-black color indicates
that potatoes contain starch

How do you test the presence of Carbohydrates in food items?