Question Bank • QB_APE_EXP_105 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Processing of Agriculture Produce

Subtopic: Value addition of agriculture produce

Question Statement:

In a supercritical $CO_2$ extraction system for essential oil from black pepper, $20\text{ kg}$ of ground spice containing $3.5\%$ oleoresin is processed. If $0.63\text{ kg}$ of pure oleoresin is extracted, calculate the percentage extraction yield.

Answer Key:

90

Step-by-Step Solution & Explanation

Total oleoresin initially in spice: $M_t = 20 \times 0.035 = 0.70\text{ kg}$ Extracted amount $M_e = 0.63\text{ kg}$. Yield: $\text{Yield} = \frac{0.63}{0.70} \times 100 = 90.0\%$
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