Define procedure for testing the presence of urea in milk, Biology

Assignment Help:

Define Procedure for Testing the Presence of Urea in Milk?

1. To 0.5 ml of milk add 0.5 ml of  DMAB solution  (prepared by dissolving 0.4 gm of p-dimethyl amino benzaldehyde powder in 250 ml of alcohol and 23 ml of concentrated HCl).

2. Observe for the colour change.

3. Change of colour from white to yellow shows adulteration in the sample.


Related Discussions:- Define procedure for testing the presence of urea in milk

Human population-historical overview, Human Population-Historical Overview ...

Human Population-Historical Overview Throughout history, the human population has been quite small. It has grown relatively slowly and even experienced occasional declines. Fi

Respiratory system of the phylum annelida characterized, Q. How is the resp...

Q. How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be branchial or cutaneous. Cutaneous respiration takes place due to

How is digestion performed in protozoans, How is digestion performed in pro...

How is digestion performed in protozoans? Digestion in protozoans is intracellular digestion: organic material is internalized and degraded inside the cell. Protozoans get

Identification and care of taxonomic collections, Q. Identification and Car...

Q. Identification and Care of Taxonomic collections? Collection of plant specimens is essential for taxconomic research. Herbarium specimens become a permanent record. Select t

The number of electrons in their outer energy level, The bonding geometry o...

The bonding geometry of C,O,N is determined by- Select one: a. The number of electrons in their outer energy level b. SP3 hybridization of orbitals in the valence shell

Anti lipid drugs-peri operative problems, Anti Lipid Drugs :  The current ...

Anti Lipid Drugs :  The current thinking is that it is very important to keep lipid levels low. It helps in preventing atherosclerotic changes in venous grafts and the long-term p

Virus is in an inactive state, Q. What is signifying when it is said that a...

Q. What is signifying when it is said that a virus is in an inactive state? Viruses considered in inactive state are those whose genetic material is within host cells without a

Nutrition, prove oxygen is produced during photosynthesis in the presence o...

prove oxygen is produced during photosynthesis in the presence of light

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