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Question

Which micro-organism is used in the formation of cheese?

A
Aspergillus
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B
Acetic acid bacteria
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C
Lactococcus lactis
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D
None of the above
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Solution

The correct option is C Lactococcus lactis
Lactococcus lactis is used for manufacturing cheese such as Cheddar, Colby, cottage cheese, cream cheese etc. When Lactococcus lactis is added to milk as a starter, the bacterium uses enzymes to produce energy molecules, called ATP, from lactose and convert it into the lactic acid. The lactic acid curdles the milk that then separates to form curds, which are used to produce cheese and whey.

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