Storage Solutions for Fruits and Vegetables

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Questions and Answers

What is one benefit of higher altitude for storage facilities?

Higher humidity levels improve storage

Greater oxygen levels support crop respiration

Increased atmospheric pressure aids in preservation

Lower air temperatures enhance cooling methods (correct)

Which crop is typically stored in caves in Northwest China?

Garlic

Apples (correct)

Citrus fruits

Onions

What type of environment is generally preferable for curing onions and garlic?

High humidity environment

Cold environment with ice

Low relative humidity environment (correct)

Dark enclosed space with moisture

What is a common method for manipulating air composition in storage?

Increasing ventilation and using gas absorbers Signup and view all the answers

Which of the following statements about cold rooms is false?

All cold rooms must be prefabricated. Signup and view all the answers

Which material has the highest R-value per inch thickness among the listed options?

Polyisocyanurate Signup and view all the answers

Which insulating material has the same R-value as fiberglass when measured at 1 inch thickness?

Cellulose Signup and view all the answers

What is the R-value of an 8-inch concrete block with vermiculite in its core?

5.03 Signup and view all the answers

Which of the following insulation types has a lower R-value than wood or cane fiber board?

Vermiculite Signup and view all the answers

Among the following types of insulation, which one has an R-value range and is not a fill-type material?

Expanded rubber Signup and view all the answers

Which fruit requires the longest time to store based on the provided information?

Potatoes, late crop Signup and view all the answers

Which of the following vegetables can be injured by one light freezing?

Sweet potatoes Signup and view all the answers

What is the storage duration for strawberries?

5-7 days Signup and view all the answers

Which vegetable has the shortest storage time?

Peas, southern Signup and view all the answers

Which fruit has a storage temperature of 45-55°F?

Papayas Signup and view all the answers

Which of these fruits can be stored for about two months?

Pomegranates Signup and view all the answers

How long can potatoes from the early crop be stored?

10-14 days Signup and view all the answers

What is the freezing injury susceptibility of blueberries?

They can be injured by one light freezing. Signup and view all the answers

What is the maximum storage temperature for peppers, sweet?

90-95°F Signup and view all the answers

Which vegetable requires a storage temperature range of 32-34°F?

Rhubarb Signup and view all the answers

What is the typical storage duration for Jaffa oranges?

8-12 weeks Signup and view all the answers

Which of the following fruits has a storage temperature requirement of 55-60°F?

Guavas Signup and view all the answers

What is the minimum storage temperature for grapes, Vinifera?

30°F Signup and view all the answers

How long can you store fresh mushrooms?

34 days Signup and view all the answers

Which vegetable has the longest storage duration at 10-12 months?

Horseradish Signup and view all the answers

What is the storage temperature range for Jackfruit?

55-60°F Signup and view all the answers

Which of the following has the shortest storage duration?

Jaboticaba Signup and view all the answers

What temperature is ideal for storing leafy greens?

32°F Signup and view all the answers

For how long can Kiwifruit be stored?

3-5 months Signup and view all the answers

What is the optimal storage temperature for limes?

48-50°F Signup and view all the answers

What is the approximate storage life of artichokes, globe?

2-3 weeks Signup and view all the answers

Which vegetable has the longest approximate storage life among the options?

Cranberries Signup and view all the answers

At what temperature should blackberries be stored?

-1 to 0 °C Signup and view all the answers

What is the relative humidity requirement for storing green bananas?

90-95% Signup and view all the answers

Which of the following fruits can be stored at the highest temperature?

Black sapote Signup and view all the answers

What is the approximate storage life of baby carrots?

2 weeks Signup and view all the answers

Which of the following has the shortest storage life?

Bean sprouts Signup and view all the answers

How long can sweet corn be stored under the right conditions?

5-8 days Signup and view all the answers

Which storage condition is necessary for Brussels sprouts?

0 °C and 95-100% humidity Signup and view all the answers

At what relative humidity should celery be stored?

98-100% Signup and view all the answers

Which product has a relative humidity requirement of 90-95%?

Asparagus Signup and view all the answers

What temperature range is appropriate for storing Atemoya?

13-15 °C Signup and view all the answers

How long can fresh figs be stored?

7-10 days Signup and view all the answers

Which of the following vegetables can be stored for approximately 34 weeks?

Gooseberries Signup and view all the answers

Which fruit requires the highest humidity level during storage?

Cherries, sour Signup and view all the answers

Study Notes

Storage Environment

Higher altitudes can improve the effectiveness of evaporative, night, and radiant cooling due to the drop in air temperature with altitude.
Underground storage is a common practice, with citrus stored in caves in Southern China and apples in caves in Northwest China.
The air composition in storage environments can be altered by adjusting the rate of ventilation or utilizing gas absorbers like potassium permanganate and activated charcoal.

Storage Options

Cold rooms are an effective storage solution but can be expensive.
Small-scale operators can choose to construct cold rooms themselves, purchase prefabricated units (new or used), or adapt refrigerated transport equipment like railway cars, vans, or marine containers.

Recommended Storage Conditions

The table provides recommended storage temperatures and relative humidity for various fruits and vegetables, along with their approximate storage life.

Susceptibility to Freezing Injury

Several fruits and vegetables, including apricots, asparagus, avocados, bananas, beans, berries, cucumbers, eggplants, lemons, lettuce, limes, okra, peaches, peppers, plums, potatoes, squash, sweet potatoes, and tomatoes, are susceptible to damage from a single light freeze.

Insulation R-Values

R-value indicates a material's resistance to heat conduction and its insulating properties. A higher R-value translates to better insulation.
Various materials, including batt and blanket insulation, fill-type insulation, rigid insulation, foamed-in-place insulation, and building materials, have varying R-values, which should be considered for effective cold storage solutions.

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Description

This quiz explores effective methods for storing fruits and vegetables, focusing on various environmental conditions, storage options, and recommended practices. Highlights include the benefits of altitude and underground storage, along with construction tips for cold rooms and other storage techniques.