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

Define intravascular fluid compartment - extracellular fluid, Explain intra...

Explain intravascular fluid compartment - extracellular fluid? The extracellular fluid compartment is sub-divided into the intravascular fluid compartment (fluid within the blo

What are the biotolerant materials, What are the Biotolerant materials ...

What are the Biotolerant materials Biotolerant materials, are characterized by a thin fibrous tissue interface. The fibrous tissue layer develops as a result of the chemical pr

Query, How can I get assignment order

How can I get assignment order

Db is a standard abbreviation, DB is a standard abbreviation used for the q...

DB is a standard abbreviation used for the quantitative expression of: 1. the density of bacteria in a medium 2. a particular pollutant 3. the dominant Bacillus in a cultu

Development of heart in amphibians, Development of Heart in Amphibians ...

Development of Heart in Amphibians The heart and the surrounding pericardial cavity build up from lateral mesoderm. After gastrulation, the mesodermal mantles carry on to gro

Explain disease jet lag, Jet Lag   Disturbance of body and environmental...

Jet Lag   Disturbance of body and environmental rhythms resulting from a rapid change in time zones gives rise to jet lag, which is characterized by insomnia, decreased quality

Excretory organ and waste product, name the excretory ogran and waste produ...

name the excretory ogran and waste product formed in various types of animals

Egg - synergids, Egg - Synergids The three cells of the egg apparatus ...

Egg - Synergids The three cells of the egg apparatus are arranged in triangular fashion with the egg sharing a common wall with the two synergids and the central cell. In the

Coelenterata – General characters and classification., Coelenterata – Gener...

Coelenterata – General characters and classification.

Where can rna are found within cells, Q. Where can RNA are found within cel...

Q. Where can RNA are found within cells? In the eukaryote cell nucleus the RNA can be found to dispersed in the nuclear fluid, along with the DNA, and as the main constituent o

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