Does pasteurization destroy all nutrients and enzymes in milk?

Does pasteurization destroy all nutrients and enzymes in milk?

• A. Yes
• B. It removes lactose completely
• C. It makes milk toxic
• D. No

Answer: (D)

Pasteurization is a controlled heat treatment that aims to kill disease-causing bacteria while preserving milk’s nutritional quality. It does not destroy all nutrients and enzymes. Most nutrients—proteins, fats, minerals, and the bulk of vitamins—remain after pasteurization, and lactose isn’t removed by the process. Some heat-sensitive enzymes and vitamins can be reduced, and a few enzymes may be inactivated, but this doesn’t equate to all nutrients and enzymes being destroyed. It also doesn’t make milk toxic. That’s why the correct answer is that pasteurization does not destroy all nutrients and enzymes.

Pasteurization is a controlled heat treatment that aims to kill disease-causing bacteria while preserving milk’s nutritional quality. It does not destroy all nutrients and enzymes. Most nutrients—proteins, fats, minerals, and the bulk of vitamins—remain after pasteurization, and lactose isn’t removed by the process. Some heat-sensitive enzymes and vitamins can be reduced, and a few enzymes may be inactivated, but this doesn’t equate to all nutrients and enzymes being destroyed. It also doesn’t make milk toxic. That’s why the correct answer is that pasteurization does not destroy all nutrients and enzymes.