Cherry low-temperature storage method based on oxidation potential water precooling and spontaneous modified atmosphere packaging

A technology of oxidizing potential water and self-adjusting atmosphere, which is applied in the field of storage of agricultural products, can solve the problems of complex components of antibacterial agents and fresh-keeping solutions, high production costs, and difficulties in popularization, so as to achieve fresh-keeping and inhibit the growth of aerobic mold, and good anti-corrosion and fresh-keeping effect of effect

Inactive Publication Date: 2019-12-24
INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Compared with the present invention, the above method about prolonging the storage time of cherries does not involve pre-cooling treatment, and has higher requirements on equipment, and the operation and process are more complicated. The postpartum pretreatment equipment and procedures of cherries need to be greatly improved. At the same time, antibacterial agents and The components of the fresh-keeping solution are complex and the production cost is high, so it is very difficult to popularize the above method in practical application;

Method used

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  • Cherry low-temperature storage method based on oxidation potential water precooling and spontaneous modified atmosphere packaging
  • Cherry low-temperature storage method based on oxidation potential water precooling and spontaneous modified atmosphere packaging
  • Cherry low-temperature storage method based on oxidation potential water precooling and spontaneous modified atmosphere packaging

Examples

Experimental program
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Effect test

Embodiment 1A

[0040] Taking sweet cherries as an example, the low-temperature storage method for sweet cherries based on oxidation potential water (slightly acidic redox potential water) precooling and spontaneous modified atmosphere packaging includes the following steps:

[0041] (1) Select fresh sweet cherries, fresh cherries are eight or nine mature fresh fruits, fresh and clean, bright in color, free from bruises, diseases and insect pests, mold lesions and other fruit surface defects;

[0042] (2) Wash the selected fresh fruit in step (1) with tap water to remove other impurities such as sediment, floating fruit, leaves, etc.;

[0043] (3) Potential water pre-cooling system is used to process the above-mentioned fresh cherries after impurity removal, specifically:

[0044] Pre-cool and sterilize the washed fresh fruit in (2) with potential water; the pH of the slightly acidic oxidation-reduction potential water is 4.0-6.8, ORP=800-1300mv, the content of available chlorine is 50-300mg / L,...

Embodiment 1B

[0065] Sweet cherry variety: Hongdeng (the same variety, same batch and harvest time, randomly divided into different groups); item indicator. Study the effects of different precooling methods (no precooling, water precooling, potential water precooling of the present invention) and packaging materials (fresh-keeping boxes, commercially available packaging bags in cherry producing areas, and spontaneous modified atmosphere packaging bags of the present invention) on sweet cherries during cold storage. effects on various qualities.

[0066] Set up the experimental group as follows:

[0067] 1) No pre-cooling + modified atmosphere bag; 2) Water pre-cooling + modified atmosphere bag;

[0068] 3) Potential water pre-cooling + modified atmosphere bag; 4) No pre-cooling + commercially available bags;

[0069] 5) Water pre-cooling + commercial bags; 6) Potential water pre-cooling + commercial bags;

[0070] 7) No pre-cooling + crisper.

[0071] CO in the bag 2 The results of co...

Embodiment 1C

[0073] The difference from Example 1A is that (6) the fresh fruit dried in step (5) is packaged and stored in a refrigerator, the storage temperature of the refrigerator is 2°C, and the relative humidity is 95%; the material of the packaging bag includes: 0.2 parts of graphene , 0.01 part of silver nitrate, 0.5 part of modified pullulan, and 100 parts of polymer resin base film. The rest are the same as in Example 1A, including the potential water precooling system and the preparation method of the packaging film are the same as in Example 1A.

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Abstract

The invention belongs to the technical field of storage of agriculture products, and particularly relates to a cherry low-temperature storage method based on oxidation potential water precooling and spontaneous modified atmosphere packaging. The method disclosed by the invention comprises the steps of (1) selecting fresh 80-90% mature sweet cherry fresh fruits; (2) cleaning the selected fresh fruits, and removing silt, floating fruits and leaves; (3) performing electric potential water precooling and sterilization; (4) classifying fruit sizes; and (5) performing cold air drying on the fresh fruits classified in the step (4). According to the method disclosed by the invention, subacid oxidation-reduction potential water is used for precooling, during precooling, sterilization is performed,gas and moisture environment in package are spontaneously adjusted, and the purposes of keeping fresh and restraining growth of aerobic moulds can be achieved. Through the adoption of the method disclosed by the invention, the problems of short storage period, mildewing, brown stains, water erosion and the like of cherries in the process of commercialization pretreatment at production places and storage in a freezer can be well solved, besides, reformation of existing commercialization pretreatment equipment in the production places of sweet cherries is realized, and excellent rot preventing and fresh keeping effects are caused.

Description

technical field [0001] The invention belongs to the technical field of agricultural product storage, and in particular relates to a low-temperature storage method for cherries based on oxidation potential water precooling and spontaneous modified atmosphere packaging. Background technique [0002] Cherry is a deciduous shrub fruit tree in the family Rosaceae. Its fruit is red and bright in appearance, and is rich in various vitamins and minerals. It has the functions of anti-cancer, anti-tumor, and prevention of cardiovascular and cerebrovascular diseases. In recent years, my country's cherry production and planting industry has developed rapidly, and it has become a big cherry producer. Although my country has a large planting area and high yield of cherries, the commercial processing technology of post-harvest cherries is not perfect, and the storage period is short. During storage in cold storage, problems such as mold growth, browning, and water rot often occur, which se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/00A23B7/015A23B7/04A23B7/157A23B7/148A23B7/159B07C5/10B65D30/02C02F1/467C08L101/00C08K9/04C08K9/02C08K3/04C08J5/18
CPCA23B7/00A23B7/157A23B7/04A23B7/015A23B7/159A23B7/148C08J5/18B65D29/00C02F1/4674B07C5/10B07C2501/009C08K9/08C08K9/02C08K3/042C08J2300/00A23V2002/00
Inventor 裘纪莹赵双枝周庆新陈相艳陈蕾蕾辛雪王凤丽王军华
Owner INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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