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Microbiology

Microbiology
Which of the following toxin causing botulism is less toxic to human beings?

Type B
Type A
None of these
Type C

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Microbiology
The bacteria, which is more resistant to adverse environmental conditions, is

S boydii
S dysenteriae
S sonnei
S flexneri

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Microbiology
An excessively high temperature in the fermentation of sauerkraut may inhibit the growth of

Pediococcus cerevisiae
none of these
both (a) and (b)
Leuconostoc

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Microbiology
The elimination of the scum of yeasts in the brine during the fermentation include

addition of the sorbic acid
addition of the mustard oil
all of these
agitation of the surface

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Microbiology
The favouring conditions for floaters is

high intial amounts of salt
both (a) and (b)
none of these
thick skin that does not allow gas to diffuse out

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Microbiology
The bacteria that is negative for fermentation of mannitol is

S boydii
S dysenteriae
S sonnei
S flexneri

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