Chemistry

Difference Between Aldose And Ketose

The Basic Difference Between Aldose And Ketose is that Aldose contains only one aldehyde group in single-molecule and tends to isomerism into ketoses while ketos contain one ketos group in one molecule rather than aldehyde and change isomerism into aldoses if the carbonyl group is present at the end of the chain.

In this post, you are going to learn about the Aldose vs. Ketose step by step with Diagram.

This post includes:

  • An overview
  • What is Aldose?
  • What is ketose?
  • Differences
  • Lots more

So if you want to get benefits from this post you’ll love this post.

Let’s Dive right in..

An Overview

Ketose and aldose both belong to the monosaccharides and can be differentiated on the basis of the group they are consist of. aldose contains an aldehyde group while the Ketose consists of a ketone group. An aldose is such a type of monosaccharide whose carbon skeleton consists of an aldehyde group while ketose is such a type of monosaccharide whose carbon skeleton consists of a ketone group.

aldose is commonly found in plants and ketones are present in reducing sugar where they isomerize to aldose. a large quantity is used in processed food. ribulose, fructose are common examples of ketose.

by performing an experiment named Seliwanoff’s Test we can easily distinguish between aldose and ketose. if color changes to light pink it is said to be aldose whereas if the color turns into deep cherry red it is said to be ketones.

 

Difference Between Aldose And Ketose in tabular form 

Aldose

Ketose

Consist of one aldehyde group in a single molecule.

Consist of one ketones group in a single molecule.

Shows a light pink color in Seliwanoff’s Test and react slowly.

Shows deep cherry red color in Seliwanoff’s Test and react very fast with resorcinol.

Tends to isomerize into ketoses.

Tends to isomerize into aldose by having a carbonyl group at the end of the chain.

Consist of a carbon atom which is bonded to a hydrogen atom and double-bonded to an oxygen atom.

It is a carbonyl group linked with two other carbon atoms.

Aldose group diagram

ketose group diagram

 

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