Tag: Molisch test

In biochemistry, the ability to identify and differentiate carbohydrates is fundamental. Among the many chemical tests available, two qualitative tests are commonly used to assess different qualities of carbohydrates: Benedict's test for reducing sugars and the Iodine test for starch. These methods leverage distinct chemical properties to produce observable color changes that indicate the presence of specific carbohydrate types.

Carbohydrates are the most abundant organic substances found in nature, playing a vital role in all living things. This guide explains the key characteristics to determine which of the following molecules can be identified as carbohydrates, from their fundamental composition to their structural features and chemical behaviors.

According to biochemical research, the iodine test is the classic and most well-known method for detecting the presence of polysaccharides like starch. This simple colorimetric reaction relies on iodine-potassium iodide, commonly known as Lugol's solution, to produce a dramatic color change in the presence of certain complex carbohydrates. However, other reagents are also used depending on the specific type of carbohydrate and the analysis required.