Define molisch's test or alpha naphthol reaction, Biology

Assignment Help:

Define Molisch's Test or alpha naphthol reaction?

The Molisch test is a common test for the existence of carbohydrates.

Principle

The reaction is due to the formation of furfural or furfural derivatives. Furfural and furfural derivatives are derived from the dehydration of sugars. The dehydration is caused by the action of concentrated sulphuric acid on sugars. Disaccharides, oligosaccharides and polysaccharides are hydrolyzed to yield their repeating monomers by the acid. The alpha-naphthol reacts along with the cyclic aldehydes to make purple coloured condensation products.

1110_Molisch’s Test or alpha naphthol reaction.png


Related Discussions:- Define molisch's test or alpha naphthol reaction

Why are the tropical forests also known as stratified forest, Why are the t...

Why are the tropical forests also known as stratified forests? In the tropical forests tall trees of several species have their crowns forming a superior layer under which dive

What would be the short- and long-term effects, In a possible future scenar...

In a possible future scenario, male fertility drops to zero, but, luckily, scientists develop a way for women to produce babies by virgin birth. Meiocytes are converted directly (w

Describe the filaments in the muscle fiber, Describe the filaments in the m...

Describe the filaments in the muscle fiber A healthy skeletal muscle fiber is isolated and has no external forces on it. It has normal intracellular levels of ATP and is bathed

Biology - a science of exception, BIOLOGY - A SCIENCE OF EXCEPTION - So...

BIOLOGY - A SCIENCE OF EXCEPTION - Some common examples to prove it are - 1.       Embryos of dicot plants have 2 cotyledons but in cuscuta (Dodder plant or amer bel or Aka

Future directions in biodiversity valuation, The methods that can be used f...

The methods that can be used for valuing biodiversity are still evolving at the global level, but studies have been done on how biodiversity values can be incorporated into the pro

Explain the liver organ, Explain the Liver organ? The liver is the larg...

Explain the Liver organ? The liver is the largest internal organ in the human body. It lies just below the diaphragm in the upper right area of the abdominal cavity. It is an i

Describe about results of total anomalous pulmonary venous, Describe about ...

Describe about Results of Total Anomalous pulmonary Venous Connection ? Reported hospital mortality varies from 2 to 20 per cent depending on the experience of cardiac surgery

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd