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Lactose is hydrolyzed to β-galactosidase by _________

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Lactose is hydrolyzed to β-galactosidase by _________

(a) rennet

(b) pullulanase

(c) lactase

(d) papain

This question was addressed to me in examination.

Question is taken from Large Scale Use of Enzyme topic in chapter Large Scale Use of Enzyme in Solution of Enzyme Technology

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The correct answer is (c) lactase

The best I can explain: Lactose is hydrolyzed to β-D-galactose by lactase which is a β-galactosidase. Rennet is an enzyme used to hydrolyze casein in milk and in used in cheese making. Papain is a proteolytic enzyme used in meat tenderization. Pullulanase cleaves only α-1,6-links to give rise to straight-chain maltodextrins.

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