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VINEGAR AND CITRIC ACID

Vinegar and Citric Acid
In submerged process for the fermentation to produce citric acid,

Fungal mycelium grows through out the solution in a deep tank
A. niger is used with solid substrate as sweet potato
A. niger floats on the surface of solution
both (a) and (b)

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Vinegar and Citric Acid
Which substrate is used in the fermentation of citric acid?

Beet molasses
Starch hydrolysate
Sucrose
All of these

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Vinegar and Citric Acid
Alegar is a type of vinegar produced from

ethanol
ale
malted grain
fruit juices

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Vinegar and Citric Acid
During recovery step of citric acid, calcium citrate formed is treated with which of the following acid to precipitate calcium?

H2SO4
None of these
HCl
HNO3

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Vinegar and Citric Acid
Vinegar production consists of

aerobic fermentation followed by anaerobic fermentation
anaerobic fermentation
aerobic fermentation
anaerobic fermentation followed by aerobic fermentation

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