Question

By adding heat to a test tube containing distilled water, amylase, and Benedict's Solution, what will my final color of solution be? Does this test positive for reducing sugars? Why or why not?

Answer 1

Answer:

Reducing sugars:

The sugars generally which can capable of acting as a reducing agents are called Reducing sugars. These sugars should have the free carbonyl group (Aldehyde or Keto).

All the Monosaccharides comes under this class.

Ex:

Benedicts test:

Simple sugars or reducing sugars can give the +Ve test.

For the +Ve test, The colour changes from the Clear blue to Brick red.

For Amylase:

It is the Non reducing sugar. It gives the -Ve test to the Benedicts solution. The blue colour of the reagent can not be changed.

The molecule is not having the free carbonyl groups. Hence it is the Non reducing sugar.