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Microbiology

Microbiology
The enzyme, which hydrolyses the murein is

lysozyme
none of these
perxoidase
tannase

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Microbiology
Too long a fermentation of sauerkraut may favour the growth of

none of these
Lactobacillus lactis
Bacillus subtilis
Lactobacillus brevis

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Microbiology
The milk streptococci produce acetoin that gets spontaneously oxidized yielding a flavorings agent (responsible for aroma of butter) that is

diacetyl
acetone
butyric acid
acetyl coA

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Microbiology
Hollow pickles are obtained as a result of

loose packing in the vat
none of these
both (a) and (b)
too strong or too weak brine

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Microbiology
Yersinia enterocolitica and Y. pestis can be differentiated on the basis of which of the following tests?

Motility at 22°C
All of these
Decarboxylation of ornithine
Fermentation of sucrose and cellobiose

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Microbiology
Gram-negative bacteria, responsible for food poisoning, is/are

Salmonella
Pseudomonas
Clostridia
None of these

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