Question

Consider the following and choose the correct answer Assertion [A]: Downstream processing significantly increases the cost of enzyme production. Reason [R]: Enzymes are usually produced in very pure form during fermentation. The correct answer is

• A. Both [A] and [R] are true and [R] is the correct explanation of [A]
• B. Both [A] and [R] are true and [R] is not the correct explanation of [A]
• C. [A] is true, but [R] is false
• D. [A] is false, but [R] is true

Hint:

Downstream processing includes \[ \boxed{ \text{Recovery} \rightarrow \text{Purification} \rightarrow \text{Formulation} } \] and often accounts for a major portion of the production cost.

Answer 1

The Correct Option is C

Step 1: Examine the assertion. Downstream processing involves recovery, purification, concentration and formulation of the desired product after fermentation. These purification steps contribute significantly to the overall production cost. Hence, \[ \boxed{\text{Assertion [A] is true}.} \]

Step 2: Examine the reason. Enzymes are not produced in a pure form during fermentation. The fermentation broth contains cells, nutrients, metabolites and other impurities, which require extensive purification. Thus, \[ \boxed{\text{Reason [R] is false}.} \] Therefore, \[ \boxed{(C)} \] is the correct answer.