Unit 2

Analyzing the statements in relation to Milk clotting enzymes from different sources – microbial:

The correct option is Option 1: Both Statement (I) and Statement (II) are correct.

• Centrifugal Forces in Ultracentrifugation:
• Operational Capacity:
• Analytical and preparative ultracentrifuges spin at rotor speeds up to $100,000\text{ rpm}$ in high vacuum.
• Capable of generating enormous centrifugal accelerations up to $1,000,000 \times g$ ($10^6 \times g$), enabling sedimentation fractionation of small proteins, ribosomes, and viral particles.
• Conclusion: 1000000 x g (Option 4).

Correct option: (4) 1000000 x g

• Total Solids Determination in Composite Ice Cream Cake:
• Product Composition & Standards:
• Ice cream mix formulated for an overrun of $90\%$ requires minimum $36\%$ Total Solids (fat, MSNF, sugars, stabilizers) to maintain structural air-cell stability.
• Chocolate cake layers contain $70 - 75\%$ Total Solids.
• For a composite dessert exhibiting $4\%\text{ w/w}$ protein and $90\%$ overrun, the combined weighted total solids content inherently exceeds $36\%\text{ w/w}$.
• Conclusion: More than 36% w/w (Option 3).

Correct option: (3) More than 36% wiw