Modified-atmosphere preservation method for bitter gourds

A technology of controlled atmosphere preservation and bitter gourd, which is applied in the field of freshness preservation. It can solve the problems that the bitter gourd preservation technology is susceptible to cold damage, chemical preservation agents pollution, and respiratory disorders, etc., and achieve the effects of improving disease resistance, maintaining nutritional value, and weakening biological effects.

Inactive Publication Date: 2015-11-11
CHENGDU ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for maintaining freshness of bitter gourd with modified atmosphere, so as to solve the problems of cold damage, pollution by chemical preservation agents, and ripening by ethylene in many bitter gourd preservation technologies, so that bitter gourd can maintain its original freshness, color and flavor , prolong its shelf life, and overcome O 2 Concentration is too low, CO 2 If it is too high, the product will be hypoxic and lead to respiratory disorders

Method used

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  • Modified-atmosphere preservation method for bitter gourds

Examples

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Embodiment 1

[0027] A method for air conditioning fresh-keeping balsam pear, the method comprises the following steps:

[0028] a. Raw material pretreatment: Harvest 70% of medium-maturity melons, keep 2cm stalks, handle with care when harvesting to prevent mechanical damage, place the harvested bitter melons in special baskets, and perform pre-cooling treatment. The temperature of the melon is 10°C. After the pre-cooling treatment is completed, it is selected to remove the damaged melon body, and then cleaned and sterilized by ozone water with a concentration of 0.3mg / L, and the water on the surface of the melon body is air-dried;

[0029] b. Packing: put the pretreated bitter gourd into a special modified atmosphere packaging bag or a transparent modified atmosphere packaging box, and put it into a mixture of 1-methylcyclopropene and calcium peroxide in a mass ratio of 2:1 The antistaling agent formed, the addition amount is 1.8% of the balsam pear quality of packing;

[0030] c. Inflat...

Embodiment 2

[0034] A method for air conditioning fresh-keeping balsam pear, the method comprises the following steps:

[0035] a. Raw material pretreatment: Harvest 80% of medium-maturity melons, keep 3cm stalks, handle with care when harvesting to prevent mechanical damage, place the harvested bitter melons in special baskets, and perform pre-cooling treatment. The temperature of the melon is 10°C. After the pre-cooling treatment is completed, it is selected to remove the damaged melon body, and then cleaned and sterilized by ozone water with a concentration of 0.3mg / L, and the water on the surface of the melon body is air-dried;

[0036] b. Packing: put the pretreated bitter gourd into a special modified atmosphere packaging bag or a transparent modified atmosphere packaging box, and put it into a mixture of 1-methylcyclopropene and calcium peroxide in a mass ratio of 2:1 The antistaling agent formed, the addition is 2.9% of the bitter gourd quality of packing;

[0037] c. Inflatable p...

Embodiment 3

[0041] A method for air conditioning fresh-keeping balsam pear, the method comprises the following steps:

[0042]a. Raw material pretreatment: Harvest 70% of medium-maturity melons, keep 2cm stalks, handle with care when harvesting to prevent mechanical damage, place the harvested bitter melons in special baskets, and perform pre-cooling treatment. The temperature of the melon is 11°C. After the pre-cooling treatment is completed, it is selected to remove the damaged melon body, and then cleaned and sterilized by ozone water with a concentration of 0.3mg / L, and the surface water of the melon body is air-dried;

[0043] b. Packing: put the pretreated bitter gourd into a special modified atmosphere packaging bag or a transparent modified atmosphere packaging box, and put it into a mixture of 1-methylcyclopropene and calcium peroxide in a mass ratio of 3:1.5 Become a preservative, and the addition amount is 1.5% of the quality of the balsam pear of packing;

[0044] c. Inflatab...

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PUM

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Abstract

The invention discloses a modified-atmosphere preservation method for bitter gourds. The method includes the following steps of raw material pretreatment, bagging, gas-filled packaging, sterilization and storage and transportation. By adopting a modified-atmosphere packaging technology and adjusting gas compositions in a packaging storage environment, growth and metabolism of microorganisms can be effectively restrained; meanwhile, by controlling temperature and improving a pretreatment and packaging process, cold damage, ethylene ripening and decaying of the bitter gourds are avoided. According to the modified-atmosphere packaging technology, the non-poisonous, non-harmful and no-residual effects are achieved, non-harmful treatment is adopted in the whole preservation process, the usage of poisonous chemical agents is avoided, and therefore no harmful influence on the bitter gourds exists. By means of the method, the defects of the prior art are overcome, the original freshness, color and luster and flavor of the bitter gourds can be kept, the shelf life of the bitter gourds can be prolonged, and the easily appearing problems that due to extremely low O2 concentration and extremely high CO2 content, the bitter gourds suffer oxygen deficit, and breathing disorders are caused in the modified-atmosphere preservation process of the bitter gourds can be solved.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping, in particular to a method for fresh-keeping bitter gourd by controlled atmosphere. Background technique [0002] Bitter gourd, also known as bitter gourd, is a Cucurbitaceae plant, an annual climbing herb, edible, and has high value. It is a summer and autumn vegetable mainly edible tender melon. It matures in July and August when the temperature is higher It belongs to the respiratory climacteric fruit. At room temperature, the fruit has a strong respiratory metabolism and is easy to turn yellow and rot, thus losing its edible value and commodity value. But bitter gourd is a low-temperature sensitive vegetable, which is very sensitive to low temperature. When stored above 10°C, the fruit breathes vigorously, and the fresh-keeping period is very short. When stored below 10°C, chilling injury is prone to occur. Therefore, bitter gourd is a vegetable that is difficult to store. At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A23B7/157A23B7/148
Inventor 张正周郭奇亮刘继李娟郑旗刘佳冯骏张驰松涂杰涂彩虹樊雪飞
Owner CHENGDU ACAD OF AGRI & FORESTRY SCI
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