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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Which of the following was the first amino acid to be produced commercially?

L-methionine
L-cystine
L-lysine
L-glutamic acid

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

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

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Industrially Useful Microbial Processes
The aerated submerged bacterial fermentation to produce vitamin B12 employs strains of

Propionibacterium
Acetobacter
both (a) and (b)
Pseudomonas

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Industrially Useful Microbial Processes
Vinegar is a fermentation derived food product containing not less than

4% acetic acid
25% acetic acid
15% acetic acid
6% acetic acid

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Industrially Useful Microbial Processes
Bacitracin, an antibiotic similar to penicillin, is produced by

Bacillus polymyxa
Bacillus licheniformis
Streptomyces erythreus
Aspergillus fumigatus

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Industrially Useful Microbial Processes
The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to

traces of iron
none of these
traces of cobalt
traces of nickel

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