Question

Milk is a mixture of lipid, protein and carbohydrate. Do you think both lipids and carbohydrate are removed or not? IF yes? How is it removed? if not, why? Write a short discussion (less than 300 words) to answer the questions.

Answer 1

Both lipis or fats and carbohydrates can be removed from milk.

The main lipid present in milk is triglycerides. Lipids or fats can be removed from milk by extraction with mixture of solvents such as methanol and chloroform. This can also be done by pressurized liquid extraction method.

Carbohydrates that present in milk is lactose. Its structure consists of one galactose and one glucose bound through a 1-4 glycosidic linkage. One common method to remove lactose from milk is the addition of lactase(enzyme) which hydrolyse lactose to galactose and glucose. When lactose reacts with lactase, it is attacked by an amino acid called glutamate which breaks the glycosidic bond between two sugers i.e; glucose and galactose and thus making the milk lactose free.