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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
Heat-labile enterotoxin of Escherichia coli activates

none of these
guanylate cyclase
both (a) and (b)
adenylate cyclase

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Microbiology
Abnormal fermentation of cabbage may result in a cheese like odour caused by

all of these
caprioc acid and Valeric acid
butyric acid
propionic acid

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Microbiology
Prodigiosin (red pigment) is produced by members of genus

Cirobacter
Serratia
Hafnia
Enterobacter

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Microbiology
The technique(s), used for the assay of heat-labile enterotoxin produced by Escherichia coli, is/are

Enzyme-linked immunosorbent assay
All of these
Steroid production in Yl mouse adrenal cell culture
Morphological changes in Chinese hamster ovary

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Microbiology
Which of the following can readily kill Salmonellae?

Moist heat at 55°C for 1 hr
Moist heat at 55°C for 10 min
Moist heat at 55°C for 20 min
Moist heat at 55°C for 30 min

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