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

What is the difference among plasma membrane and cell wall, Plasma membrane...

Plasma membrane and cell wall is not the similar thing. Plasma membrane, also known as cell membrane, is the outer membrane common to all living cells and it is made of a phospholi

Human respiration, Human respiration Human beings are adopted for ter...

Human respiration Human beings are adopted for terrestrial mode of life. They conduct pulmonary respiration. This system consists of external nostrils, nasal cavities, pharyn

Chambers of heart, The ventricles are separated from each other by the inte...

The ventricles are separated from each other by the interventricular septum and the atria are separated from each other by the interatrial septum. The interior of the right atrium

Illustrate about the neuropsychological assessment, Illustrate about the ne...

Illustrate about the neuropsychological assessment A neuropsychological assessment is a clinical examination of both the working brain and dysfunctional brain. Neuropsychologic

How pregnancy and lactation affects the bmr, How Pregnancy and Lactation af...

How Pregnancy and Lactation affects the bmr? These periods of physiological stress also has an impact on the metabolic rate. Earlier, we studied that REE is highest during the

Long term potentiation, It is a neural mechanism that plays a role in encod...

It is a neural mechanism that plays a role in encoding of new information. Encoding takes place as a result of changes in the strength of synapses among neurons in neuronal network

What is the role of vitamin k in the blood coagulation, Q. What is the orga...

Q. What is the organ where most of the clotting factors are produced? What is the role of vitamin K in the blood coagulation? Most of the clotting factors are produced in the l

Genetic terminology, GENETIC TERMINOLOGY (i)         Gene - Mendel us...

GENETIC TERMINOLOGY (i)         Gene - Mendel used the term factor for a gene. A gene is the unit of DNA responsible for the appearance and inheritance of character. (ii)

Cells, List structures found in unicellular organisms that are an adaptatio...

List structures found in unicellular organisms that are an adaptation to their free-living life and are not usually found in the cells of multicellular organisms.

Define prevalence and incidence for anorexia nervosa, Define Prevalence and...

Define Prevalence and Incidence for anorexia nervosa? The disorder occurs most commonly in adolescent girls and young women, but adolescent boys and young men may be affected m

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