This set of Fruits Processing Multiple Choice Questions & Answers (MCQs) focuses on “Developments in Packaging of Fresh Fruits and Fruit Products”.
1. What are the requirements for packaging material?
a) Moisture protection
b) Light barrier
c) Transparency
d) Moisture protection, light barrier and transparency
View Answer
Explanation: The general requirements and functions of food packaging materials is that they must be non-toxic and compatible with the specific foods. it should be sanitary protection. It should also protect the product from moisture and fat protection. It should be easy for opening.
2. Which of the following is an example for hermetic packaging?
a) Cans
b) Wood baskets
c) Nets
d) Polyethylene covers
View Answer
Explanation: The term hermetic means a container which is absolutely impermeable to gases and vapors throughout. Whereas, a container that prevents the entry of microorganisms is called as non-hermetic packaging. The most common hermetic containers are rigid metal cans and glass bottles.
3. Which of the following packaging material is used for storing onions?
a) Wooden basket
b) Mesh bags
c) Pallet containers
d) Glass containers
View Answer
Explanation: The mesh bags are used for packing vegetables like turnips, potatoes, citrus, onions, and cabbage. The mesh bags are less expensive. The mesh also has the benefit of uninterrupted air flow. This advantage of having good ventilation is mainly helpful in storing onions.
4. What is the purpose of modified atmosphere packaging?
a) Ripening
b) Increased shelf life
c) Respiration
d) Metabolism
View Answer
Explanation: It Increases the shelf-life of the product. It allows less frequent loading of retail display shelves. It also reduces the retail waste. It is one of the hygienic stackable packs, sealed. It is also free from product drip and odor.
5. What is the limitation of shrink packaging?
a) Cost
b) Strength
c) Mechanical damage
d) Flexibility
View Answer
Explanation: Shrink wrapping has been used successfully to package potatoes, sweet potatoes, apples, onions, sweet corn. Shrink wrapping with an engineered plastic wrap can reduce shrinkage, protect the produce from disease. It also reduces mechanical damage and provide a good surface for stick-on labels.
6. Are these statements about the modified atmosphere packaging true?
Statement 1: Little or no need for chemical preservatives.
Statement 2: Benefits of this packaging are lost once the pack is opened or leaks.
a) True, False
b) True, True
c) False, True
d) False, False
View Answer
Explanation: Modified atmosphere packaging requires little or no need for chemical preservatives. The capital cost of gas packaging machinery is high. Increased pack volume will adversely affect transport costs and retail display. The potential growth of food-borne pathogens is mainly due to temperature abuse by retailers and consumers.
7. Which of the following packaging material is resist moisture?
a) Wooden basket
b) Mesh bags
c) Pallet containers
d) Glass containers
View Answer
Explanation: Types of Packaging Materials that are moisture resistant materials are glass, polythene films, polyester films and polyvinyl films. Aluminum foils and Lamination are also moisture barriers. Cellulose film and cellulose acetate are used in edible coating to prevent the moisture loss.
8. Which of the following packaging material is used for vegetables that require hydro cooling?
a) Wire bound crates
b) Mesh bags
c) Tin containers
d) Glass containers
View Answer
Explanation: The wooden wire-bound crates are used extensively for snap beans, sweet corn and several other commodities that require hydro cooling. Wire-bound crates are sturdy, rigid. It also have very high stacking strength that is essentially unaffected by water.
9. What are breathable polymers?
a) A type of intelligent packaging material
b) An example for non-biodegradable polymer
c) An example for anti-microbial polymer
d) A type of passive packaging material
View Answer
Explanation: The intelligent packaging function switches on and off in response to changing external or internal conditions. It communicates to the consumer about the status of the product. For examples, Breathable polymers and time temperature integrators are used as in intelligent packaging.
10. Is polyvinyl alcohol is a non-biodegradable material?
a) True
b) False
View Answer
Explanation: The use of bio based polymers to overcome environmental problems arising out of the use of non-biodegradable materials. It can be easily degraded. Examples such a s polyesters, polyester amides, poly vinyl alcohol, starch material, cellulose material and poly hydroxy acids.
11. Which of the following is not a function of packaging material?
a) Ripening
b) Shelf life
c) Protection against microbes
d) Protection against light
View Answer
Explanation: The main functions of packaging are to assemble the produce into convenient units for handling. It also protects the produce during, storage and marketing. It should be intact until it reaches the end consumer.
12. What is the limitation of corrugated card boxes?
a) Cost
b) Strength
c) Manufacturing process
d) Flexibility
View Answer
Explanation: Corrugated fiberboard is manufactured in many different styles and weights. It is relativity low cost and versatility. Both cold temperatures and high humidity reduce the strength of fiberboard containers. The moisture absorbed from the surrounding air and the contents can reduce the strength of the container.
Sanfoundry Global Education & Learning Series – Fruits Processing.
To practice all areas of Fruits Processing, here is complete set of 1000+ Multiple Choice Questions and Answers.
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