Vinegar and Citric Acid
Which of the following microorganism is used for the production of citric acid?

Saccharomyces cerevisiae
Aspergillus niger
Lactobacillus bulgaricus
Streptococcus lactis

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Vinegar and Citric Acid
Vinegar is typically produced in fed batch reactors because

All of these
a fed batch reactor can be used to maintain low acetic acid concentrations
acetic acid bacteria tend to ferment at high ethanol concentrations
a fed batch reactor can be used to maintain low ethanol concentrations

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