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VINEGAR AND CITRIC ACID

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

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

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

Starch hydrolysate
All of these
Sucrose
Beet molasses

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

ale
malted grain
fruit juices
ethanol

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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
HNO3
HCl
None of these

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Vinegar and Citric Acid
Vinegar production consists of

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

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