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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
β-carotene is also known as

vitamin C
provitamin A
vitamin D
vitamin A

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Industrially Useful Microbial Processes
A major organic acid produced by a microbial process used in foods is

oxalic acid
uric acid
sulfuric acid
citric acid

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Industrially Useful Microbial Processes
Which of the following microorganism produces only L(+) - lactic acid without further racemization ?

Lactobacillus delbrueckii
Rhizopus oryzae
Lactobacillus bulgaricus
Leuconostoc mesenteroides

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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. niger
A.flavus

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

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

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Industrially Useful Microbial Processes
Most productive species among the different vitamin B12 producing Pseudomonads is

none of these
P. denitrificans
P. ovalis
P. aureofaciens

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