Question:
Which of the following is a high protein milk powder that has both the proteins of milk in near native state?
Which of the following is a high protein milk powder that has both the proteins of milk in near native state?
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Milk Protein Concentrate (MPC) is produced by membrane ultrafiltration of skim milk, which concentrates both caseins and whey proteins in their native forms without chemical precipitation.
Updated On: Aug 7, 2026
- Ricotta powder
- Calcium co-precipitate
- Demineralized whey powder
- Milk protein concentrate
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Milk contains two primary protein fractions: caseins (approximately 80%) and whey proteins (approximately 20%).
High-protein dairy powders are manufactured using physical separation or chemical precipitation methods.
Step 2: Detailed Explanation:
Let us evaluate the protein composition and native state of each powder:
1. Ricotta powder: This is produced from whey, sometimes with added milk, and consists primarily of denatured whey proteins that have been thermally precipitated.
2. Calcium co-precipitate: This is manufactured by adding calcium chloride to milk and heating to high temperatures (approx. 90$^{\circ}$C).
This process thermally denatures and chemically precipitates the proteins, meaning they are not in their native state.
3. Demineralized whey powder: This contains only whey proteins, with casein absent, and has a lower total protein concentration than milk protein concentrates.
4. Milk Protein Concentrate (MPC): This is manufactured by ultrafiltering skim milk.
Ultrafiltration physically concentrates the proteins while letting water, lactose, and soluble minerals pass through as permeate.
Because no chemical precipitation or high-heat treatment is used, MPC contains both caseins and whey proteins in their native ratio (approx. 80:20) and in a near-native functional state.
Step 3: Final Answer:
Therefore, Milk Protein Concentrate is the high-protein powder that contains both milk proteins in a near-native state.
Milk contains two primary protein fractions: caseins (approximately 80%) and whey proteins (approximately 20%).
High-protein dairy powders are manufactured using physical separation or chemical precipitation methods.
Step 2: Detailed Explanation:
Let us evaluate the protein composition and native state of each powder:
1. Ricotta powder: This is produced from whey, sometimes with added milk, and consists primarily of denatured whey proteins that have been thermally precipitated.
2. Calcium co-precipitate: This is manufactured by adding calcium chloride to milk and heating to high temperatures (approx. 90$^{\circ}$C).
This process thermally denatures and chemically precipitates the proteins, meaning they are not in their native state.
3. Demineralized whey powder: This contains only whey proteins, with casein absent, and has a lower total protein concentration than milk protein concentrates.
4. Milk Protein Concentrate (MPC): This is manufactured by ultrafiltering skim milk.
Ultrafiltration physically concentrates the proteins while letting water, lactose, and soluble minerals pass through as permeate.
Because no chemical precipitation or high-heat treatment is used, MPC contains both caseins and whey proteins in their native ratio (approx. 80:20) and in a near-native functional state.
Step 3: Final Answer:
Therefore, Milk Protein Concentrate is the high-protein powder that contains both milk proteins in a near-native state.
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