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

Salt glands in birds and reptiles, Salt Glands in Birds and Reptiles M...

Salt Glands in Birds and Reptiles Marine reptiles for example, iguanas, estuarine sea turtles, crocodiles, sea snakes and marine birds like the marine teleosts do not produce

Infectious diseases, In f e c tiou s Diseases Infectious diseases ...

In f e c tiou s Diseases Infectious diseases inflicts major economic losses as the disease spreads from one animal to other and large number of animals are affected with t

What do you mean by polyester, Q. What do you mean by Polyester? Polyes...

Q. What do you mean by Polyester? Polyester (ES) or polyethylene terephthalate (PET): PET is a very strong transparent glossy film, which has good moisture and gas barrier p

What is the meaning of narcolepsy, What is the meaning of Narcolepsy Th...

What is the meaning of Narcolepsy This is an inappropriate attack of sleep, the affected person has an overwhelming impulse to fall asleep or simply collapses into sleep at inc

Infectious and chronic diseases, Infectious and Chronic Diseases The m...

Infectious and Chronic Diseases The most prevalent diseases of poverty, many of which are also infectious by nature, are malaria, tuberculosis, respiratory infections, water b

Rock be well-known from living things, Critical thinking the organization o...

Critical thinking the organization of a rock is much simpler than that of living things. By what other criteria can a rock be well-known from living things? Rocks are not comp

Show symptoms and signs of hyperthyroidism, Q. What are some symptoms and s...

Q. What are some symptoms and signs found in patients with hyperthyroidism? The hormones made by the thyroid gland stimulate the basal metabolism of the body in hyperthyroidism

Experiments of mendel - monohybrid crosses, EXPERIMENTS OF MENDEL MONO...

EXPERIMENTS OF MENDEL MONOHYBRID CROSSES When only a single pair of contrasting or differentiating traits is considered in a cross (or inheritance of only one pair of cont

Porifera, method of digestion in porifera

method of digestion in porifera

Explain precautions for preparation of bacterial smear, Explain Precautions...

Explain Precautions for Preparation of Bacterial Smear? 1. Plates used should be prepared 24 hours before use to avoid spreading of colonies due to moisture in plates. 2. Sw

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