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Triss [41]
2 years ago
14

Cottage cheese is produced by acidifying milk, bringing the pH of the milk down to the isoelectric point of casein, the main mil

k protein that creates the cottage cheese curd. What is the net charge of the casein at its isoelectric point?
2
3
1
0
Health
1 answer:
juin [17]2 years ago
5 0

Answer:

The correct answer is 0.

Explanation

Milk is basically a mixture of many kinds of proteins, which are further divided into 3 main categories:  

  1. Casein (80%)
  2. whey proteins
  3. minor proteins

Casein being a protein is made from many amino acids. Depending on the pH of milk system, each amino acid has a negative and a positive charge. At some value of pH, the positive and negative charges on casein will be in balance, thus leaving Zero net charge at its isoelectric point.

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