ANS 201

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Author:
saunde86
ID:
243967
Filename:
ANS 201
Updated:
2013-10-30 15:41:48
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ANS 201
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Description:
dairy
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  1. explain the mechanism of milk let down (milk ejection) reflex
    physical stimulation--nervous system message--brain--nervous system message--posterior pituitary gland (oxytocin)--blood--myoepithilial cell contraction
  2. what milk product exits a milk clarifier
    whole milk
  3. what product exits a milk seperator
    skim milk
  4. what proteins found in milk precipitate at pH 4.6.
    casein
  5. thermophilic cultures grow best at what temperature range
    90-1100 F
  6. mastitis of mammary glands cause lower cheese yield because of a lower concentration of what molecule
    casein
  7. the second phase of milk coagulation that starts building the structure of cheese is known as the what phase
    enzymatic
  8. swiss style cheese have bubbles called eyes that are formed when a gas is produced during ripening what gas?
    carbon dioxide
  9. the property of the fat phase and the aqueous phase of milk that is the major reason for allowing a centrifugal separator to concentrate the fat in the cream is?
    diameter of the fat globule
  10. what is every tanker load of milk checked for (anitibiotics) prior to receiving at the plant?
    beta-lactam
  11. the most heat resistant pathogen known to exist in milk is what?
    coxiella burnetii
  12. true/false. For each volume of milk produced, 400-500 volumes of blood flow through the mammary gland
    true
  13. true/false. overrun is the amount of air whipped into ice cream mix and may not exceed 200%
    true
  14. true/false. 145o F for 30 sec is the minimum time temp treatment for high temp short time (HTST) pasteurization.
    false
  15. true/false.  Alkaline phosphatase is inactivated at time-temperature relationships just slightly shorter and lower than required for destruction of the most heat-resistant pathogen known to be found in milk.
    true?
  16. high quality chymosin for cheese making is currently being produced by the recombinant DNA industry
    true

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