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What is represented in the following diagram? (a)Immobilization by adsorption

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What is represented in the following diagram?

(a) Immobilization by adsorption

(b) Enzyme dissolved in a reversed micellar medium

(c) Anhydrous enzyme suspended in the organic solvent

(d) Immobilization by entrapment

This question was posed to me in an internship interview.

The question is from Recent Advances in division Recent Advances in Enzyme Technology of Enzyme Technology

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Right choice is (b) Enzyme dissolved in a reversed micellar medium

The best explanation: In the diagram above, a schematic representation of an enzyme dissolved in a reversed micellar medium is shown. Micelles are formed by the surfactant molecules with help from co-surfactant. CTAB, AOT, phosphatidylcholine, etc., are the surfactants used which is only found at the interphase boundary. Whereas, the co-surfactant like butanol, hexanol and octanol are added to vary the properties of interphase which is less polar and more soluble in the organic continuous phase.

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