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Storage method of fresh pomegranate

A technology for pomegranates and fresh fruits, which is applied in the fields of preservation of fruits and vegetables, protection of fruits/vegetables with coating protection layer, preservation of fruits/vegetables through freezing/refrigeration, etc., to achieve good fresh-keeping effect, no environmental pollution, and long storage period

Active Publication Date: 2014-09-03
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned pomegranate storage method, and provide a storage method for fresh pomegranate fruit with strong practicability, long storage period, good fresh-keeping effect and no environmental pollution

Method used

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  • Storage method of fresh pomegranate
  • Storage method of fresh pomegranate
  • Storage method of fresh pomegranate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Cold storage disinfection

[0029] Mix copper sulfate, quicklime, and water in a mass ratio of 1:5:50, brush the top and wall of the cold storage, and dry; use 0.5% bleaching powder aqueous solution to scrub fruit baskets, fruit racks and other cold storage utensils, and dry them for later use. Use; put the ozone generator into the storeroom and close the door to generate ozone until the ozone concentration reaches 20mg / m 3 Afterwards, the warehouse is kept closed for 24 hours.

[0030] 2. Making preservatives

[0031] Mix potassium permanganate aqueous solution with a mass fraction of 5% and vermiculite at a mass ratio of 1:3, stir evenly, fully infiltrate, drain and dry in the shade to make a particle size of 3-4mm and a water content of 20%-30 % of antistaling agent, then put the antistaling agent into a polyethylene plastic bag with a thickness of 0.03mm, 100g per bag, and seal it for later use.

[0032] 3. Choose pomegranate fruit

[0033] Choose fresh pomeg...

Embodiment 2

[0045] 1. Cold storage disinfection

[0046] Mix copper sulfate, quicklime, and water at a mass ratio of 1:5:50, brush the top and wall of the cold storage, and dry; use 0.7% bleaching powder aqueous solution to scrub fruit baskets, fruit racks and other cold storage utensils, and dry them for later use. Use; put the ozone generator into the warehouse and close the door to generate ozone, and wait until the ozone concentration reaches 15mg / m 3 After closing the warehouse, keep it for 48 hours.

[0047] 2. Making preservatives

[0048] Mix potassium permanganate aqueous solution with a mass fraction of 5% and vermiculite at a mass ratio of 1:3, stir evenly, fully infiltrate, drain and dry in the shade to make a particle size of 3-4mm and a water content of 20%-30 % of antistaling agent, then put the antistaling agent into a polyethylene plastic bag with a thickness of 0.03mm, 100g per bag, and seal it for later use.

[0049] 3. Choose pomegranate fruit

[0050] Choose fresh...

Embodiment 3

[0062] In the storage and preservation step 6 of Examples 1-2, the fresh pomegranate fruit after precooling is transferred to the cold storage, and the fresh pomegranate fruit together with the fruit basket is placed in four 1m 3 In a pressure-resistant container, each container is filled with 5 baskets, and each basket is filled with 1 bag of preservative, the amount of preservative is 1.0% of the fruit mass of each basket, and 20 needle holes are pricked on each bag of preservative, and then vacuumized Make the internal pressure of the pressure-resistant container reach 60.0kPa (0.6 atmospheric pressure), keep it at 3.0-4.0°C and relative humidity of 90%-95% for 24 hours, take out the fruit basket, and cover it with a polyethylene plastic bag with a thickness of 0.04mm Store the fruit baskets, tie the bag tightly, and stack them in the cold storage. The distance between the fruit baskets is 15cm from the side wall, 60cm from the top of the warehouse, and the distance between ...

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Abstract

The invention provides a storage method of fresh pomegranate. The storage method comprises the steps of: disinfecting a refrigeration house, preparing an antistaling agent, selecting raw materials, spraying a color protecting solution, precooling fresh pomegranate in baskets, then placing the pre-cooled pomegranate into a pressure container, adding the antistaling agent accounting for 1.0%-6.0% of the pomegranate per basket in mass, vacuumizing for reducing the pressure to 30.0-90.0 kPa, maintaining the pomegranate for 24 hours under the conditions that the temperature is 3.0-4.0 DEG C and the relative humidity is 90%-95%, binding up the pomegranate by plastic bags, storing the pomegranate in the refrigeration house under the conditions that the ambient temperature is 0-5.0 DEG C and the relative humidity is 90%-95%, opening the plastic bags once every 20-40 days during the storage period, repeating the procedure of vacuumizing for pressure reduction, and finally, packaging and delivering the pomegranate. According to the storage method, an amplification experiment is carried out, 10 tons of fresh pomegranate are stored every year with the storage period exceeding 150 days, the pericarp browning index is below 0.2, and the commodity fruit rate is above 92%, so that the storage period of the fresh pomegranate is long, the preservation effect is good, environmental pollution is avoided, the economical benefits are remarkable, and the storage method can be widely generalized and used in production.

Description

technical field [0001] The invention belongs to the technical field of general preservation of foods or foodstuffs, and in particular relates to the storage of fresh pomegranate fruits under low temperature conditions by adopting treatments such as color-protecting liquid, fresh-keeping agent and intermittent pressure reduction. Background technique [0002] Pomegranate (Punica granatum L.) is a deciduous shrub belonging to the pomegranate family. It is native to Central Asian countries such as Iran and Afghanistan. It was introduced to my country by Zhang Qian in the Western Han Dynasty when he was sent to the Western Regions. It has been cultivated for more than 2,000 years. It is planted in most of the subtropical regions. The pomegranate fruit is unique in shape, bright in color, rich in nutrition, delicious in fresh food, and has the functions of promoting body fluid and transforming food, eliminating gastric acid, softening blood vessels, detoxifying and antidiarrheal, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/04A23B7/157A23B7/16
Inventor 张有林张润光张亮吴倩
Owner SHAANXI NORMAL UNIV
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