Antibiotics
Vegetable oil, (corn oil or soybean oil) added in the fermentation medium for penicillin, act as

antifoam agent
carbon source
source of nutrients
both (a) and (c)

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Antibiotics
Penicillin is produced by

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

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