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Antibiotics

Antibiotics
pH of the fermentation medium for chlorotetracyclins is

7-8
5-6
6-7
8-9

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Antibiotics
Penicillin is recovered after fermentation as

sodium penicillin
potassium penicillin
penicillin only
calcium penicillin

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Antibiotics
Which of the following organism(s) produce(s) tetracycline?

All of these
Steptomyces ramosus
Nocardia sulphurea
Steptomyces aureofaciens

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Antibiotics
Inoculum preparation for the fermentation medium for penicillin takes place on

all of these
rice seeds
barley seeds
wheat seeds

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Antibiotics
The yield of the antibiotic depends upon

all of these
age of the inoculum
composition of the medium
pH of the medium

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Antibiotics
During which phase of growth of Penicillium chrysogenum maximum antibiotic production takes place

during the first phase
during the second phase
same in all the phases
during the third phase

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