Safe and environmentally-friendly fresh keeping method of vegetables through cold-chain logistics

A technology of cold chain logistics and fresh-keeping methods, which is applied in the direction of fruit and vegetable preservation, fruit/vegetable preservation through freezing/refrigeration, food preservation, etc., which can solve the problems of fruit and vegetable quality decline, corruption and deterioration, and achieve simple methods, prolong shelf life, Effect of reducing nutrient loss and water loss

Inactive Publication Date: 2018-01-30
DONGGUAN HONGJUN MEAL MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The respiration of fruits and vegetables will lead to a decline in the quality of fruits and vegetables, and then spoilage

Method used

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  • Safe and environmentally-friendly fresh keeping method of vegetables through cold-chain logistics
  • Safe and environmentally-friendly fresh keeping method of vegetables through cold-chain logistics
  • Safe and environmentally-friendly fresh keeping method of vegetables through cold-chain logistics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A safe and environmentally friendly lettuce fresh-keeping method in cold chain logistics, comprising the following steps:

[0053](1) Pretreatment: select fresh, complete, and disease-free lettuce, remove foreign matter, wash it with 2% sodium chloride aqueous solution at 14°C, take it out, place it in an environment of 14°C for 50 minutes, and drain to obtain pre-processed lettuce;

[0054] (2) Pre-cooling: Spray 3% water of pre-treated lettuce quality on the pre-treated lettuce, and send it into the vacuum pre-cooler for vacuum pre-cooling. The pre-cooling final temperature of the vacuum pre-cooler is 4° C., and the final pressure is 700 Pa. pre-chilled lettuce;

[0055] (3) Soaking: soak the pre-cooled lettuce in the fresh-keeping solution at 3°C ​​for 30 minutes, take it out and place it in the environment at 3°C ​​for 50 minutes to drain, and obtain the soaked lettuce, wherein the quality of the fresh-keeping solution is 15 times the mass of the pretreated lettuce...

Embodiment 2

[0063] A safe and environmentally friendly lettuce fresh-keeping method in cold chain logistics, comprising the following steps:

[0064] (1) Pretreatment: select fresh, complete, and disease-free lettuce, remove foreign matter, wash it with 2% sodium chloride aqueous solution at 14°C, take it out, place it in an environment of 14°C for 50 minutes, and drain to obtain pre-processed lettuce;

[0065] (2) Pre-cooling: Spray 3% water of pre-treated lettuce quality on the pre-treated lettuce, and send it into the vacuum pre-cooler for vacuum pre-cooling. The pre-cooling final temperature of the vacuum pre-cooler is 4° C., and the final pressure is 700 Pa. pre-chilled lettuce;

[0066] (3) Soaking: soak the pre-cooled lettuce in the fresh-keeping solution at 3°C ​​for 30 minutes, take it out and place it in the environment at 3°C ​​for 50 minutes to drain, and obtain the soaked lettuce, wherein the quality of the fresh-keeping solution is 15 times the mass of the pretreated lettuc...

Embodiment 3

[0074] A safe and environmentally friendly lettuce fresh-keeping method in cold chain logistics, comprising the following steps:

[0075] (1) Pretreatment: select fresh, complete, and disease-free lettuce, remove foreign matter, wash it with 2% sodium chloride aqueous solution at 14°C, take it out, place it in an environment of 14°C for 50 minutes, and drain to obtain pre-processed lettuce;

[0076] (2) Pre-cooling: Spray 3% water of pre-treated lettuce quality on the pre-treated lettuce, and send it into the vacuum pre-cooler for vacuum pre-cooling. The pre-cooling final temperature of the vacuum pre-cooler is 4° C., and the final pressure is 700 Pa. pre-chilled lettuce;

[0077] (3) Refrigeration: Put the pre-cooled lettuce into PE fresh-keeping bags, open the bag opening and store in the refrigerator for 1 day under reduced pressure. , the size is 40cm×60cm, and the mass of lettuce in each PE fresh-keeping bag is 1.5kg.

[0078] (4) Cold chain logistics transportation: s...

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Abstract

The invention discloses a safe and environmentally-friendly preservation method of vegetables through cold-chain logistics. The method comprises the following steps of: (1) performing pretreatment; (2) performing precooling; (3) performing immersing; (4) performing refrigerating; and (5) performing cold-chain logistics transportation. The safe and environmentally-friendly preservation method of vegetables through cold-chain logistics disclosed by the invention is simple and can effectively reduce nutrient loss and water loss of the vegetables, keep the vegetables in a fresh state for a long time after picking, and prolong the shelf life.

Description

technical field [0001] The invention belongs to the technical field of vegetable fresh-keeping, and in particular relates to a safe and environment-friendly vegetable cold-chain logistics fresh-keeping method. Background technique [0002] Vegetables need to be fresh-keeping after harvesting, so as to reduce the post-harvest loss of fruits and vegetables, maximize their nutrition, freshness and food safety, beautify products, delay their metabolism and prolong their post-harvest life. In the logistics process of vegetables from the field to the consumer's table, fresh-keeping treatment plays an important role. Without good fresh-keeping treatment technologies and measures, it is difficult to predict the quality change, decay loss and commodity value of fruits and vegetables during storage, transportation and sales. [0003] Vegetables have unique advantages and status in my country's agricultural development. In recent years, my country's vegetable industry has developed ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/04A23B7/157A23B7/158
Inventor 李银满杨伟雄
Owner DONGGUAN HONGJUN MEAL MANAGEMENT CO LTD
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