MILK AND MILK PRODUCTS QUIZ

Pseudomonas syncyanea

both (a) and (b)

Pseudomonas synxantha

S. marcescens

Streptococcus thermophilus

mixed culture of (a) and (b)

Lactobacillus bulgaricus

S. cremoris

sliminess resulting from the thickness of the cream

stringiness due to thin films of casein or lactalbumin during cooling

All of these

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

slimy capsular material from the cells usually proteins

slimy capsular material from the cells usually lipids

slimy capsular material from the cells usually gums or mucins

All of these

A. viscolactis

Pseudomonas fluorescens

both (a) and (b)

none of these

P. fragi

Alcaligenes metalcaligenes

all of these

Pseudomonas

Clostridium sporogenes

Clostridium tyrobutyricum

None of these

Clostridium herbarum

none of these

Aeromonas hydrophila

Pseudomonas syncyanea

Pseudomonas synxantha

greenish areas

black smudge

none of these

pink color

worse near the top of the milk

worse at the bottom of the milk

all of these

worse at the middle of the milk