Question

if any one know answer please tell
6. What is the principle of centrifugation? How is cream separated from milk by using it?
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Answer 1

Explanation:

CENTRIFUGATION - DEFINITION

Centrifugation is the process where a mixture is separated through spinning. Centrifugation uses a centrifuge.

METHOD OF SEPARATING CREAM FROM MILK

A separator is a centrifugal device that separates milk into cream and skimmed milk. Separation was commonly performed on farms in the past. Most farmers milked a few cows, usually by hand, and separated milk.

SEPARATING CREAM FROM MILK - DEFINITION

A separator is a centrifugal device that separates milk into cream and skimmed milk. Separation was commonly performed on farms in the past. Most farmers milked a few cows, usually by hand, and separated milk.

Milk is a suspension of tiny droplets of oil (cream) in a watery liquid. The process of centrifugation is to separate cream from milk. The milk is put in a closed container in big centrifuge machine.When the centrifuge machine is switched on, the milk is rotated (or spun) at a very high speed container Due to this the milk separates into 'cream' and 'skimmed milk .The cream, being lighter, floats over the skimmed milk.It can then be removed. Thus, cream is separated from milk by centrifugation.

Answer 2

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❇Principles of Centrifugation

Centrifugation is based on Stoke's Law. The particle sedimentation velocity increases with:

• increasing diameter
• increasing difference in density between the two phases
• decreasing viscosity of the continuous phase

❇How it is separated from milk ❇

If raw milk were allowed to stand, the fat globules would begin to rise to the surface in a phenomena called creaming. Raw milk in a rotating container also has centrifugal forces acting on it. This allows rapid separation of milk fat from the skim milk portion and removal of solid impurities from the milk.

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