Antibiotics
Which of the following event occurs during second phase of growth of P. chrysogenum?

pH increase
Synthesis of penicillin is high
Mycelial mass increases
Both (a) and (b)

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Antibiotics
Penicillin is produced by

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

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