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Microbiology

Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

moulds
none of these
bacteria
yeasts

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Microbiology
Black kraut is caused by

None of these
the combined actions of plant enzymes and micro-organisms
the micro-organisms
the plant enzymes

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Microbiology
The favouring conditions for floaters is

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

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Microbiology
Which of the following is a gram-positive bacteria?

Streptococci
All of these
Lactobacillus
Staphylococci

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Microbiology
Arrange the potencies of toxin in descending order of the following canned foods

corn> spinach> peas>string beans
corn> string bean>peas>spinach
corn> peas>string beans>spinach
peas>string beans>spinach> corn

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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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