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Preservative: Quiz


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Question 1: Common antimicrobial preservatives include calcium propionate, sodium nitrate, ________, sulfites (sulfur dioxide, sodium bisulfite, potassium hydrogen sulfite, etc.) and disodium EDTA.
Potassium permanganateSodium nitriteSodium thiosulfateEthanol

Question 2: Preservative ________ can be used alone or in conjunction with other methods of food preservation.
Food chemistryE numberFood additiveMilk

Question 3: Natural substances such as salt, sugar, vinegar, and ________ are also used as traditional preservatives.
Diatomaceous earthCretaceousUnited StatesFrance

Question 4: For more information on wood preservatives, see ________.
LumberArsenicAcetic acidWood preservation

Question 5: For instance, citric and ________ from lemon or other citrus juice can inhibit the action of the enzyme phenolase which turns surfaces of cut apples and potatoes brown.
BiotinAscorbic acidPyridoxal phosphatePyrroloquinoline quinone

Question 6: Preservatives may be added to wood to prevent the growth of ________ as well as to repel insects and termites.

Question 7: Preservatives may be antimicrobial preservatives, which inhibit the growth of bacteria and fungi and mold growth, or ________ such as oxygen absorbers, which inhibit the oxidation of food constituents.
NutritionMetabolismAntioxidantHuman nutrition

Question 8: to prevent ________ by microbial growth or by undesirable chemical changes.

Question 9: Other preservatives include formaldehyde (usually in solution), glutaraldehyde (kills insects), ________ and methylchloroisothiazolinone.
Ethanol1,4-ButanediolFlumazenilAlcoholic beverage

Question 10: Typically ________, copper, chromium, borate, and petroleum based chemical compounds are used.


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