MILK AND MILK PRODUCTS QUIZ

thickening caused by micrococci

All of these

gas formation by sucrose fermenting yeasts

mold colonies growing on the surface

gas forming, aerobic spore formers

gas forming, anaerobic spore formers

both (a) and (b)

none of these

brownish color to bluish gray in milk in its pure form

gray to brownish color in milk

bluish gray to brownish color in milk in its pure form

yellow color in milk

Lactobacillus bulgaricus

S. cremoris

Streptococcus thermophilus

mixed culture of (a) and (b)

Clostridium sporogenes

Clostridium herbarum

Clostridium tyrobutyricum

None of these

black smudge

pink color

greenish areas

none of these

both (a) and (b)

Pseudomonas synxantha

Pseudomonas syncyanea

S. marcescens

Pseudomonas putrefaciens

both (a) and (b)

the enzymatic oxidation of tyrosine by P. fluorescens

S. marcescens

Lactobacillus acidophilus

Lactobacillus bulgaricus

None of these

Streptococcus thermophilics

P. fragi

Alcaligenes metalcaligenes

Pseudomonas

all of these