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Vinegar and Citric Acid

Vinegar and Citric Acid
Spirit vinegar is produced from

ale
ethanol
malted grain
fruit juices

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

Starch hydrolysate
Beet molasses
Sucrose
All of these

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Vinegar and Citric Acid
Ethanol is oxidized to acetic acid aerobically using

Acetobacter
both (a) and (b)
Lactobacillus
Gluconobacter

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

fruit juices
malted grain
ale
ethanol

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Vinegar and Citric Acid
Cider vinegar is produced from

malted grain
ale
ethanol
fruit juices

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Vinegar and Citric Acid
Which of the following nitrogen sources is added in the fermentation medium of citric acid production?

Both (a) and (b)
Peptone
Urea
Ammonium salt

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