Antibiotics
Penicillin is produced by

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

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Antibiotics
Media composition for the production of streptomycin is

soybean meal, glucose, peptone, malt extract, calcium carbonate
soybean meal, glucose, peptone, malt extract, ammonium chloride
soybean meal, glucose, peptone, malt extract, sodium chloride
soybean meal, glucose, peptone, malt extract, ammonium sulphate

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