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

Concentration of antibiotic increases in the medium
Slight rise in pH due to liberation of ammonia
Autolysis of the medium starts
All of these

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Antibiotics
Penicillin is produced by

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

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