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Which of the following is not added as a preservative for liquid enzyme preparation?

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in Enzyme Technology by (55.0k points)
Which of the following is not added as a preservative for liquid enzyme preparation?

(a) Antibiotic

(b) Benzoic acid esters

(c) Thiols

(d) Carboxymethylcellulose

The question was asked in a national level competition.

The above asked question is from Enzyme Preparation for Sale topic in division Enzyme Preparation and Usage of Enzyme Technology

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Correct answer is (d) Carboxymethylcellulose

For explanation: Carboxymethylcellulose is an inert material used as preservatives in solid preparations. Substrates, thiols, antibiotics, benzoic acid esters, inhibitors of contaminating enzyme activities and chelating agents are used as preservatives for liquid enzyme preparations. These additives must be compatible with the final use of the enzyme’s product.

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