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Microbiology

Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

bacteria
yeasts
moulds
none of these

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Microbiology
Selective media for the isolation of Shigella is

Hektoen enteric agar
Salmonella-Shigella agar
Xylose lysine deoxycholate agar
All of these

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Microbiology
The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of

cell autolysis
cell permeation
cell growth
cell damage

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Microbiology
Staphylococcal intoxication is caused by the toxin m the food from

S. thermophillus
S. cerevisiae
none of these
Staphylococcus aureus

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Microbiology
The botulism intoxication occurs due to

neurotoxin
mycotoxin
an enterotoxin
all of these

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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

acetone
diacetyl
butyric acid
acetyl coA

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