Microbiology of Foods
NaCl can act as

antagonist at optimal concentrations
None of these
synergistically if added in excess of optimum level
Both (a) and (b)

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Microbiology of Foods
Which of the following is true about ISO 2002 method for Salmonella detection?

XLD is the first isolation medium rather than BGA
Rappaport Vassiliadis (RV) broth has been replaced by Rappaport Vassiliadis Soya (RVS) broth
Selenite cystine (SC) broth is replaced by Muller Kauffmann tetrathionate novobiocin broth (MKTTn)
All of these

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Microbiology of Foods
Plate count of bacteria in foods generally use the plating medium consisting of

peptone, glucose, sodium chloride, agar and distilled water
peptone, yeast extract, glucose, sodium chloride, agar and distilled water
yeast extract, glucose, sodium chloride, agar and distilled water
peptone, yeast extract, glucose, sodium chloride and distilled water

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