Modified atmosphere preservation method of marine brassica chinensis L.

A technology of controlled atmosphere preservation and small rapeseed, which is applied in the direction of fruit and vegetable preservation, application, food preservation, etc., can solve the problems affecting the crew's food supply needs, etc., and achieve the effect of low cost, simple operation process and no chemical residue

Active Publication Date: 2013-02-20
TIANJIN CNRO SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned prior art, the storage and fresh-keeping method of green gang rape can not meet the storage requirements of more than 30 days of marine life, which directly affects the food supply needs of the majority of crew members.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The invention provides a modified atmosphere preservation method for marine green rapeseed, and the modified atmosphere preservation method for marine green rape is sequentially carried out according to the following steps:

[0017] 1). Pre-cooling: after harvesting, green rapeseed is quickly placed in a cold storage at 0°C and a relative humidity of 90% for 10 hours;

[0018] 2). Use a fresh-keeping bag to keep fresh: put the pre-cooled green rapeseed in a fresh-keeping bag with a length of 30cm and a width of 20cm. The amount of green rapeseed in each fresh-keeping bag is 1kg, and the green rapeseed is in a loose state;

[0019] 3). Prepare gas parameter values ​​in the fresh-keeping bag: use a high-precision gas distribution instrument to input O 2 , CO 2 , N 2 gas, its parameter values ​​are: O 2 The concentration is 2.5%, CO 2 The concentration is 8%, the rest of the gas is N 2 ;

[0020] 4). Storage in cold storage: Put the fresh-keeping bag of green rapesee...

Embodiment 2

[0023] The invention provides a modified atmosphere preservation method for marine green rapeseed, and the modified atmosphere preservation method for marine green rape is sequentially carried out according to the following steps:

[0024] 1). Pre-cooling: Pre-cooling the green rapeseed in a cold storage at 4°C and a relative humidity of 96% for 50 hours after harvesting;

[0025] 2). Use a fresh-keeping bag to keep fresh: put the pre-cooled green rapeseed in a fresh-keeping bag with a length of 120cm and a width of 100cm. The amount of green rapeseed in each fresh-keeping bag is 20kg, and the green rapeseed is in a loose state;

[0026] 3). Prepare gas parameter values ​​in the fresh-keeping bag: use a high-precision gas distribution instrument to input O 2 , CO 2 , N 2 gas, its parameter values ​​are: O 2 The concentration is 12%, CO 2 The concentration is 15%, the rest of the gas is N 2 ;

[0027] 4). Store in cold storage: Put the fresh-keeping bag of green rapeseed ...

Embodiment 3

[0030] The invention provides a modified atmosphere preservation method for marine green rapeseed, which is carried out according to the following steps:

[0031] 1). Pre-cooling: Pre-cooling the green rapeseed in a cold storage at 2°C and a relative humidity of 93% for 30 hours after harvesting;

[0032] 2). Use a fresh-keeping bag to keep fresh: put the pre-cooled green rapeseed in a fresh-keeping bag with a length of 75cm and a width of 60cm. The amount of green rapeseed in each fresh-keeping bag is 9kg, and the green rapeseed is in a loose state;

[0033] 3). Prepare gas parameter values ​​in the fresh-keeping bag: use a high-precision gas distribution instrument to input O 2 , CO 2 , N 2 gas, its parameter values ​​are: O 2 The concentration is 7%, CO 2 The concentration is 12%, the rest of the gas is N 2 ;

[0034] 4). Store in cold storage: Put the fresh-keeping bag of green rapeseed after the gas preparation in the previous step into the cold storage for storage....

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Abstract

The invention discloses a modified atmosphere preservation method of marine brassica chinensis L. The modified atmosphere preservation method comprises the following steps in sequence: 1) precooling; 2) preserving by adopting preservation pouches; 3) configuring gas parameter values in the preservation pouches: utilizing a high-precision gas distribution instrument to input gases O2, CO2 and N2 into the preservation pouches with brassica chinensis L., wherein the parameter values of the gases are as follows: the concentration of O2 is 2.5-12%, the concentration of CO2 is 8-15% and the rest gas is N2; 4) putting the preservation pouches in a cold store for storage; and 5) finishing the operation. The modified atmosphere preservation method has the following beneficial effects: through precooling, packaging with the preservation pouches, configuration of the gases O2, CO2 and N2 in the preservation pouches and control of the key processes such as temperature and humidity, the storage period of brassica chinensis L. is lengthened to 45 days; more than 98% of brassica chinensis L. does not suffer from quality deterioration such as vast water loss and wilting of leaf surfaces and even leaf rot and maintains good edibility; and the method is simple, is lower in cost, avoids chemical residues during storage and conforms to the international requirements.

Description

technical field [0001] The invention relates to a fresh-keeping method for green rapeseed, in particular to a controlled-atmosphere preservation method for marine green rape. Background technique [0002] Brassica chinensis L., also known as oily cabbage, is an annual herb belonging to Brassica genus Brassica in the family Brassicaceae. Originated in my country, the stem is erect, the branches are few, the color is dark green, and it contains protein, fat, sugar and other nutrients. It is rich in calcium, iron and vitamin C, and also rich in carotene, which is very beneficial to resist hyperkeratosis of the skin. [0003] Green rapeseed is not suitable for long-term storage, so there are strict requirements on fresh-keeping conditions and shelf life to maintain the good quality of green rapeseed. In the prior art, low-temperature storage is used for the storage and preservation of green rapeseed. The specific parameters for low-temperature storage and preservation are: tem...

Claims

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Application Information

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IPC IPC(8): A23B7/148A23B7/04
Inventor 郭晓光
Owner TIANJIN CNRO SCI TECH
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