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INDUSTRIALLY USEFUL MICROBIAL PROCESSES

Industrially Useful Microbial Processes
Which of the following when used in proper concentration stimulates the Ascomycetes fermentation of vitamin B12 and can be used to counteract toxicity of iron in Candida species?

Ca
Co
Ni
Zn

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Industrially Useful Microbial Processes
Pectinase, an enzyme used for increasing yield and for clarifying juice is obtained by

A. oryzae
all of these
A.flavus
A. niger

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Industrially Useful Microbial Processes
The 95% ethanol is equivalent to

120 proof
110 proof
190 proof
170 proof

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Industrially Useful Microbial Processes
Which species from the followings is resistant to methyl tryptophan?

E. coli
Hansenula anomala
Candida utilis
B. subtilis

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Industrially Useful Microbial Processes
Which of the following substance is employed to neutralize the lactic acid as it is produced (because lactic acid bacteria do not tolerate high concentrations of acid?

(NH4)2 HPO4
Na2SO4
MgSO4
CaCO3

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