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Microbiology

Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

moulds
bacteria
none of these
yeasts

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Microbiology
Xylose lysine deoxycholate (XLD) agar is better selective medium than the deoxycholate citrate agar (DCA) because

it is less inhibitory to S. Dysentriae and S. flexneri
it is selective
it contains high salt concentration
it imparts better growth

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Microbiology
A bacterial food intoxication refers to

illness caused by presence of pathogens
None of these
food borne illness caused by the presence of a bacterial toxin formed in food
both (a) and (b)

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

S sonnei
S flexneri
S dysenteriae
S boydii

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Microbiology
The botulism intoxication occurs due to

neurotoxin
an enterotoxin
all of these
mycotoxin

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Microbiology
Floaters or bloaters may result from

hetero fermentative lactic acid bacteria
gas being formed by yeasts
hollow cucumbers
all of these

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