Fraction of phospholipids used in instant milk powder... | Agrigyan

• Physical Partitioning of Minerals in Bovine Milk:
• Dual Phase Distribution:
• Milk minerals exist in dynamic equilibrium partly in the soluble phase and partly in the colloidal phase.
• Colloidal phase: Two-thirds of calcium, half of magnesium, and half of inorganic phosphate are bound within casein micelles as colloidal calcium phosphate (CCP).
• Soluble phase: One-third of calcium, sodium, potassium, chlorides, and soluble citrates/phosphates are dissolved in milk serum.
• Conclusion: Partly soluble and partly colloidal (Option 4).

Correct option: (4) Partly soluble and partly colloidal

Matching the items of List I with List II for Milk clotting enzymes from different sources – microbial:

The correct combination is Option 3: (A) - (III), (B) - (V), (C) - (1), (B) - (HN).

Correct option: (3) (A) - (III), (B) - (V), (C) - (1), (B) - (HN)

• Colloidal Classification of Liquid Ghee:
• Physical State:
• Ghee is anhydrous milk fat ($\gt 99.5\%$ triacylglycerols) obtained by thermal evaporation of moisture.
• Above its melting point ($\gt 35 - 40^\circ\text{C}$), it is a single-phase homogeneous liquid mixture where minor lipids (cholesterol, fat-soluble vitamins, free fatty acids) are dissolved molecularly, behaving as a true solution.
• Conclusion: True Solution (Option 1).

Correct option: (1) True Solution