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Microbiology

Microbiology
Gassy spoilage of green olives is usually caused by

Clostridium spp
all of these
Enterobacter spp
Bacillus spp

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Microbiology
Blackening in pickles occurs due to

both (a) and (b)
None of these
the formation of hydrogen sulfide by bacteria
growth of Pencillium

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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
Prodigiosin (red pigment) is produced by members of genus

Enterobacter
Hafnia
Cirobacter
Serratia

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Microbiology
The botulism intoxication occurs due to

all of these
an enterotoxin
mycotoxin
neurotoxin

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Microbiology
The media which serve(s) as enrichment media for Salmonella is/are

Selenite-F broth
All of these
Tetrathionate broth
Brilliant green tetrathionate broth

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