Question

Which enzyme helps in the production of D-aminoacids?

(a) Aminoacyclase

(b) Invertase

(c) Hydantoinase

(d) Raffinase

The question was posed to me by my college director while I was bunking the class.

I want to ask this question from Immobilized Enzymes topic in division Immobilized Enzymes and their Uses of Enzyme Technology

Answer 1

The correct option is (c) Hydantoinase

For explanation: Hydantoinase is isolated from Pseudomonas striata. This enzyme is specific to D-hydantoins, which allows specific hydrolysis to D-carbamoyl amino acids which can then be converted to the D-amino acids by chemical treatment with nitrous acid and the remaining L-hydantoin may be simply racemized by base and the process repeated. Aminoacyclase produces L-aminoacids. Invertase is used to produce glucose syrups and raffinase is used in the production of soya milk.