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Spent yeast is used as ______________

(a) Nutritional supplement

(b) Dietary supplement

(c) Water supplement

(d) Air supplement

The question was asked by my school principal while I was bunking the class.

The origin of the question is Brewing Yeast in chapter Brewing Yeast of Fermentation Technology

1 Answer

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Best answer
Correct option is (a) Nutritional supplement

Explanation: Spent yeast is used as a nutritional supplement because it is an excellent source of vitamins. After fermentation, there is always leftover yeast in the form of sludge at the bottom of the fermentation vessel. The leftover yeast is referred to as spent yeast.

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