Multiple choice

Regarding the advantages of enzyme immobilization, which of the following statements is incorrect?

  1. Immobilized enzymes can be used in non-aqueous systems as well, which may be highly desirable in some cases.

  2. Continuous production system can be used, which is not possible with free enzymes.

  3. Thermo stability of some enzymes may be decreased.

  4. Recovery of enzyme may also reduce effluent handling problems.

  5. Enzymes can be used at much higher concentration than free enzyme.
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C Correct answer
Explanation

This is not true as immobilzation increases the thermotability of enzymes, for example glucose isomerase denatures at 45°C in solution, but is stable for about 1 year even at 65°C when suitably immobilized.

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