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Lactic acid bacteria ferment which of the following forming lactic acid?

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Lactic acid bacteria ferment which of the following forming lactic acid?

(a) Sucrose

(b) Glucose

(c) Lactose

(d) Fructose

I got this question during a job interview.

My doubt is from Bacteria topic in chapter Micro-organisms in Milk of Dairy Engineering

1 Answer

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Best answer
Right option is (c) Lactose

Best explanation: Lactic acid bacteria prefer lactose as a source of carbon. They ferment lactose to lactic acid.

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