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Other than oxygen, which of the following is an oxidant for glucose oxidase?

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Other than oxygen, which of the following is an oxidant for glucose oxidase?

(a) Benzoquinone

(b) D-glucono-1,5-lactone

(c) D-Carnitine

(d) Hydroquinone

I got this question in semester exam.

My question is based upon Future Prospects in chapter Enzyme Technology Future Prospects of Enzyme Technology

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Correct answer is (a) Benzoquinone

The explanation is: Glucose oxidase is specific for its D-glucose, but fairly non-specific in its choice of oxidant, normally molecular oxygen. It has been found that benzoquinone acts as an oxidant, which acts on glucose forming D-glucono-1,5-lactone and hydroquinone. The acetylcholinesterase has been found to catalyze the stereospecific hydrolysis of acetyl -D-carnitine but not acetyl-L-carnitine producing D-Carnitine.

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