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The increased use of bulk cooling and storage equipment has made _____ bacteria the primary organisms in raw milk.

(a) Psychrophilic

(b) Coliform

(c) Staphylococcus

(d) Streptococcus

This question was addressed to me in an online quiz.

Query is from Milk Quality Farm in section Quality parameters of Dairy Engineering

1 Answer

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The correct answer is (a) Psychrophilic

The explanation is: Psychrophiles or cryophiles (adj. cryophilic) are extremophilic organisms that are capable of growth and reproduction in cold temperatures, ranging from −20 °C to +10 °C. The growth of psychrophilic bacteria has tremendously increased due to bulk cooling and storage.

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