MILK AND MILK PRODUCTS QUIZ

appreciable amounts of volatile fatty acids are produced by Coliform bacteria

Lactic streptococci and aroma forming Leuconostoc species are growing together

Streptococcus lactis and other lactis are growing together

All of these

worse at the middle of the milk

all of these

worse at the bottom of the milk

worse near the top of the milk

sliminess resulting from the thickness of the cream

stringiness due to thin films of casein or lactalbumin during cooling

stringiness caused by mastitis and in particular by fibrin and leucocytes from the cow's blood.

All of these

Streptococcus thermophilics

Lactobacillus acidophilus

Lactobacillus bulgaricus

None of these

Pseudomonas syncyanea

Pseudomonas synxantha

both (a) and (b)

S. marcescens

gas forming, aerobic spore formers

gas forming, anaerobic spore formers

none of these

both (a) and (b)

both (a) and (b)

none of these

rabbito

putridity

Pseudomonas synxantha

P. mephitica

P. fragi

Aeromonas hydrophila

both (a) and (b)

the enzymatic oxidation of tyrosine by P. fluorescens

S. marcescens

Pseudomonas putrefaciens

Aeromonas hydrophila

none of these

Pseudomonas synxantha

Pseudomonas syncyanea