MILK AND MILK PRODUCTS QUIZ

appreciable amounts of volatile fatty acids are produced by Coliform bacteria

Streptococcus lactis and other lactis are growing together

All of these

Lactic streptococci and aroma forming Leuconostoc species are growing together

S. cremoris

Streptococcus thermophilus

Streptococcus lactis

Lactobacillus bulgaricus

slimy capsular material from the cells usually proteins

slimy capsular material from the cells usually lipids

All of these

slimy capsular material from the cells usually gums or mucins

Pseudomonas putrefaciens

S. marcescens

the enzymatic oxidation of tyrosine by P. fluorescens

both (a) and (b)

Clostridium herbarum

None of these

Clostridium sporogenes

Clostridium tyrobutyricum

Aeromonas hydrophila

Pseudomonas syncyanea

Pseudomonas synxantha

none of these

none of these

pink color

greenish areas

black smudge

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

sliminess resulting from the thickness of the cream

burnt or caramel flavor

bitter flavor

acid flavor

none of these

Pseudomonas fluorescens

both (a) and (b)

A. viscolactis

none of these