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Questions and Answers
What role does acetic acid, in the form of vinegar, play in preservation?
What role does acetic acid, in the form of vinegar, play in preservation?
- It promotes the growth of microorganisms
- It provides nutrients for microorganisms
- It stops the growth of microorganisms (correct)
- It has no effect on microorganisms
How does sugar and salt help in preservation of food?
How does sugar and salt help in preservation of food?
- They have no effect on microorganism growth
- They decrease the water content and make it unavailable for microorganism growth (correct)
- They provide nutrients for microorganism growth
- They increase the water content for microorganism growth
Which chemical preservatives are used to preserve jams, jellies, and pickles?
Which chemical preservatives are used to preserve jams, jellies, and pickles?
- Calcium sulfate and magnesium carbonate
- Sodium chloride and potassium nitrate
- Sodium benzoate and potassium metabisulfite (correct)
- Ammonium phosphate and sodium hydroxide
What is the purpose of heat and cold treatments in food preservation?
What is the purpose of heat and cold treatments in food preservation?
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What is the temperature range used during pasteurisation?
What is the temperature range used during pasteurisation?
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