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VINEGAR AND CITRIC ACID

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

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

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

Sucrose
All of these
Beet molasses
Starch hydrolysate

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

malted grain
ale
ethanol
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?

HCl
H2SO4
None of these
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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