Card 121
Question
How much sucrose and lactose are in condensed milk?
Answer
40-45% sucrose and 10-12% lactose
Dairy products
Discover Dairy products: 579 flashcards with questions and answers.
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- Sciences / Chemistry
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Cards in this set
Card 122
Question
For a dairy cow to make 1 liter of milk, how many liters of blood must circulate through the udder?
Answer
400 liters
Card 123
Question
To what temperature must milk be cooled to within 2 hours after milking or after completion of milking?
Answer
45°F or 7°C (Grade "A" Pasteurized Milk Ordinance)
Card 124
Question
According to FAO, what is the % of fat in yak's milk?
Answer
5-7%
Card 125
Question
Cow's milk normally has how much lactose?
Answer
5% by weight
Card 126
Question
What is the pH of milk?
Answer
6.6-6.8
Card 127
Question
Legally, cheese must be aged for at least how many days if produced using raw milk?
Answer
60 days
Card 128
Question
To what temperature must milk be cooled within 2 hours of milking?
Answer
7°C (45°F)
Card 129
Question
10 pound of cheese corresponds to how much whey?
Answer
90 pounds of whey
Card 130
Question
What is the starter culture used in the manufacture of cultured buttermilk?
Answer
A mixed culture of Lactococcus lactis subsp. lactis, Lactococcus lactis subsp. cremoris, and optionally Leuconostoc mesenteroides subsp. cremoris (for flavor development)
Card 131
Question
Define "Apparent Acidity" in milk.
Answer
Acid in milk as from cow due to proteins, phosphates, carbonates, and citrates
Card 132
Question
Cottage cheese and Ricotta produce what kind of whey?
Answer
Acid Whey
Card 133
Question
What are the three types of clotting in cheese production?
Answer
Acid, heat coagulations of whey proteins, and enzymatic.
Card 134
Question
What product consists of pasteurized milk or low-fat milk inoculated with Lactobacillus acidophilus believed to provide health benefits?
Answer
Acidophilus milk or sweet acidophilus milk (when not incubated)
Card 135
Question
If the freezing point of milk is closer to zero degrees C, what could be the cause?
Answer
Adulteration with water
Card 136
Question
In dairy cows, aflatoxin B1 can be ingested with feed. A small percentage of this toxin is metabolized and excreted in milk as what?
Answer
Aflatoxin M1
Card 137
Question
What type of edam is eaten with cheese fruits?
Answer
Aged Edam
Card 138
Question
What microorganism causes ropiness in milk?
Answer
Alcaligenes viscolactis (also acceptable Enterobacter spp. (e.g., Enterobacter cloacae), Lactococcus lactis subsp. cremoris (some strains), Bacillus spp. (e.g., Bacillus subtilis, Bacillus polymyxa), Klebsiella spp. (e.g., Klebsiella oxytoca))
Card 139
Question
Which is the enzyme that is tested to check for the pasteurization of milk?
Answer
Alkaline phosphatase
Card 140
Question
Which protein denatures at a lower temp: Beta-Lactoglobulin or Alpha-lactalbumin?
Answer
Alpha-lactalbumin is more thermally labile, but protein denaturation depends also on pH.
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