Q. Which of the following is/are the class I preservative
- Sugar
- Sorbic acid
- Calcium propionates
- All of the above
Answer: a)
Class I preservative belongs to natural sources which also exhibit preservative effects in foods. Example of Class I preservatives are sugar, salt, vinegar, honey, spices, edible oils etc.
Q. Which chemical preservative is added to tomato sauce to extend the shelf life
- Sodium benzoate
- Calcium propionate
- Tocopherol
- All of the above
Answer: a)
Sodium benzoate is the sodium salt of benzoic acid, widely used as a food preservative and pickling agent. A white crystalline chemical with the formula C6H5COONa, it has an E number of E211.
Q. Benzoates can be used for the preservation of
- Bread
- Jam
- Meat
- Egg
Answer: b)
The salt form of Benzoic acid i.e. Sodium benzoate is one of the most common chemical food preservatives. Sodium benzoate is a common preservative used in acidified food such as fruit juices, jams, pickles, preserves, fruit cocktails, etc. Yeasts’ growth is inhibited by benzoate to a greater extent.
Q. Substance or ingredient added to food product for maintaining their stability
- Emulsifier
- Sweetner
- Improver
- Stabilizer
Answer: d)
Stabilizers are substances that increase stability and thickness by helping foods remain in an emulsion and retain physical characteristics.
Q. For maintaining the consistency of food what is used
- Adulterant
- Additive
- All of the above
- None of the above
Answer: b)
Additive: Something that is added, as one substance to another, to alter or improve the general quality or to counteract undesirable properties.
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