Microbiology
The favouring conditions for floaters is

thick skin that does not allow gas to diffuse out
none of these
both (a) and (b)
high intial amounts of salt

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Microbiology
Which statement is true about flavouring materials spices, garlic etc. added to Dill pickles?

They may improve texture of the pickle
They may be source of considerable numbers of undesirable micro-organisms and cause off-fermentations or spoilage of pickles
None of these
These markedly stimulate or inhibit the acid forming bacteria

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