Milk and Milk Products
Swelling of the can is caused primarily by

both (a) and (b)
gas forming, aerobic spore formers
none of these
gas forming, anaerobic spore formers

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Milk and Milk Products
The acidity may be described as "aromatic" when

Streptococcus lactis and other lactis are growing together
Lactic streptococci and aroma forming Leuconostoc species are growing together
appreciable amounts of volatile fatty acids are produced by Coliform bacteria
All of these

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