Procedure for testing vanaspati and rancidity in ghee, Biology

Assignment Help:

Procedure for testing Presence of Vanaspati and Rancidity in Ghee?

Carry out the steps enumerated herewith for conducting this exercise.

For Vanaspati Checking:

1. Take 5 ml of ghee in a stoppered test tube.

2. Add 5 ml of concentrated HCl and shake.

3. Add 5 ml of 2% furfural solution and shake. Observe for the colour in acid layer.

4. Development of pink colour in acid layer indicates the presence of vanaspati.

Rancidity Test:

1. Take 5 ml of melted ghee in a test tube.

2. Add 5 ml of concentrated HCl and shake.

3. Add 1 ml of 0.1% Phloroglucinol and observe for development of a colour. If pink colour develops, it is a positive test, i.e., ghee is rancid.


Related Discussions:- Procedure for testing vanaspati and rancidity in ghee

How fats promote absorption of fat soluble vitamins, 1. Fats promote absorp...

1. Fats promote absorption of fat soluble vitamins like vitamin A, D, E and K. Patients of cystic fibrosis often absorb fat poorly and are at-risk for fat-soluble vitamin deficienc

Which kind of polarity do water-soluble have, Which kind of polarity do wat...

Which kind of polarity do water-soluble and fat-soluble substances respectively have? Water-soluble substances are polar molecules, i.e., they have electrically charged areas.

Pre-embryonic development, Pre-Embryonic Development We had said in t...

Pre-Embryonic Development We had said in the starting of the unit that prenatal development can be divided into two phases, embryonic and foetal. The embryonic phase of devel

How to investigate mitral regurgitation by chest radiogram, Q. How to inves...

Q. How to investigate mitral regurgitation by Chest Radiogram? Enlarged left atrium is obvious on chest X-ray and it may occupy most of the cardiac silhouette in patients with

Build vocabulary, what is the opposite of yield? A.grow B.attack C.ask D.an...

what is the opposite of yield? A.grow B.attack C.ask D.answer

Illustrate working of mitochondria and chloroplasts, Q. How is the finding ...

Q. How is the finding of ribosomes inside mitochondria and chloroplasts explained? It is a strong hypothesis that chloroplasts and mitochondria were prokaryotes that associated

Reproduction, what is the difference between anaisogyami & oogyami?

what is the difference between anaisogyami & oogyami?

Protozoa., brief account on classification and general characters of protoz...

brief account on classification and general characters of protozoa

Why can the genetic code be qualified as a degenerate code, Why can the gen...

Why can the genetic code be qualified as a "degenerate code"? The genetic code is a degenerate code because there are amino acids codified by more than one type of codon. It is

Infectious laryngotracheitis, I nfe c tio u s laryngotracheitis It...

I nfe c tio u s laryngotracheitis It is a slow, laterally spreading respiratory disease of chickens, pheasants, peafowl and turkeys caused by a herpes virus with high morb

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