Microbiology of Foods
NaCl can act as

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

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

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

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Microbiology of Foods
Enumeration of microorganism refers to

None of these
either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar
either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar, or non-selective plate, depending on the test
non-selective plating, depending on the test

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