3930613
Beschreibung
Quiz von pedangpena007, aktualisiert more than 1 year ago
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Erstellt von pedangpena007
vor mehr als 8 Jahre
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Frage 1
Frage
Before we learn about food preservatives, we have to know that all microorganisms are harmful in foods.
Antworten
- True
- False
Frage 2
Frage
Food that has a high pH value give a greater effect in sulfur dioxide against the molds compared with low pH.
Antworten
- True
- False
Frage 3
Frage
When we add sorbates at maximum value which is 0.2%, the taste of foods may change.
Antworten
- True
- False
Frage 4
Frage
Examples of Parabens are tomato sauce, soft drinks and salad dressings.
Antworten
- True
- False
Frage 5
Frage
Is it safe to use chemicals for food preservation that are not listed as GRAS by FDA regulations?
Antworten
- True
- False
Frage 6
Frage
Preserve foods by using salt and sugar works by
Antworten
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lowering osmotic pressure
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creating a hypertonic environment.
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creating a hypotonic environment.
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raising pH
Frage 7
Frage
Nitrite prevents the growth of:
Antworten
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Pseudomonas aeruginosa
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Clostridium botulinum
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Escherichia coli
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Salmonella
Frage 8
Frage
Vitamin C and vitamin E, BHA and BHT, and sulfites are all
Antworten
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antimicrobial agents
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flavor enhancers
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incidental food additives
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antioxidants.
Frage 9
Frage
The effectiveness of many chemical preservatives depends primarily on the food
Antworten
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water content.
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temperature.
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pH.
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All of the above.
Frage 10
Frage
Potassium sorbate is responsible for
Antworten
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stabilize red color of meat
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block the oxidation of glucose and pyruvate at the acetate level
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prevent gassy spoilage
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weakening of transmembrane gradient
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