Topics:
Animal Refresher, Dairy Science
Essential Amino Acids in Which Milk Proteins Are Rich
Milk proteins contain essential amino acids in adequate amounts. They are particularly rich in:
- Lysine and Valine — Correct Answer
- Lysine and Isoleucine
- Lysine and Tyrosine
- Lysine and Tryptophan
Explanation:
Correct Answer: Lysine and Valine
Milk proteins are particularly rich in the essential amino acids Lysine and Valine.
Nutritional Significance
- Lysine — a limiting amino acid in many cereal-based diets; milk is an excellent complementary protein source.
- Valine — a branched-chain amino acid (BCAA) important for muscle metabolism and tissue repair.
Milk Protein Classification
- Casein (80%): α, β, γ-casein — forms calcium-caseinate-phosphate complex
- Whey proteins (20%): α-Lactalbumin, β-Lactoglobulin
Biological Value of Milk Proteins
- Cow milk BV: 86.90 | Buffalo milk BV: 84.04
- Cow milk proteins have high digestibility and high BV
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Dairy Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
