Bitter gourd modified atmosphere packaging and freshness preserving method

A technology of modified atmosphere packaging and fresh-keeping methods, which is applied in the fields of fruit and vegetable fresh-keeping, food preservation, and protection of fruits/vegetables with coating protective layers, which can solve problems such as pollution, chemical existence, and irritation, and achieve inhibition of respiration, Prevents spoilage and slows down metabolism

Inactive Publication Date: 2016-11-09
CHINESE ACAD OF AGRI MECHANIZATION SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The 1-methylcyclopropene and calcium peroxide preservative used in this patent belong to chemical reagents, a

Method used

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  • Bitter gourd modified atmosphere packaging and freshness preserving method
  • Bitter gourd modified atmosphere packaging and freshness preserving method
  • Bitter gourd modified atmosphere packaging and freshness preserving method

Examples

Experimental program
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Example Embodiment

[0033] Example 1:

[0034] The present embodiment provides a fresh-keeping method for modified atmosphere packaging of bitter gourd, comprising the following steps:

[0035] S1. Preprocessing

[0036] Picking balsam pear: Choose 7-8 mature, fresh, plump, odor-free, pest-free balsam pears for picking, keep 2-3 cm stems and put them in woven bamboo baskets to facilitate ventilation and preservation of balsam pears and prevent ethylene accumulation due to respiration. And make the melon body turn yellow; the bitter melon is pre-cooled by forced ventilation within 30 minutes after harvesting, the cold air temperature is 10°C, the set wind speed is 0.9m / s, and the pre-cooling time is 1.5h.

[0037] Grading selection: After pre-cooling, grade the melon strips according to the size, appearance, maturity and color, etc., and remove the melons that are too large, too small, and diseased and insects.

[0038] Cleaning and sterilization: Immerse the graded and selected bitter gourd in ...

Example Embodiment

[0048] Example 2:

[0049] The present embodiment provides a fresh-keeping method for modified atmosphere packaging of bitter gourd, comprising the following steps:

[0050] S1. Preprocessing

[0051] Picking balsam pear: Choose 7-8 mature, fresh, plump, odor-free, pest-free balsam pears for picking, keep 2-3 cm stems and put them in woven bamboo baskets to facilitate ventilation and preservation of balsam pears and prevent ethylene accumulation due to respiration. And make the melon body turn yellow; the bitter melon is pre-cooled by forced ventilation within 30 minutes after harvesting, the cold air temperature is 10°C, the set wind speed is 1m / s, and the pre-cooling time is 2h.

[0052] Grading selection: After pre-cooling, grade the melon strips according to the size, appearance, maturity and color, etc., and remove the melons that are too large, too small, and diseased and insects.

[0053] Cleaning and sterilization: Immerse the graded and selected bitter gourd in a ci...

Example Embodiment

[0063] Example 3:

[0064] The present embodiment provides a fresh-keeping method for modified atmosphere packaging of bitter gourd, comprising the following steps:

[0065] S1. Preprocessing

[0066] Picking balsam pear: Choose 7-8 mature, fresh, plump, odor-free, pest-free balsam pears for picking, keep 2-3 cm stems and put them in woven bamboo baskets to facilitate ventilation and preservation of balsam pears and prevent ethylene accumulation due to respiration. And make the melon body turn yellow; the bitter melon is pre-cooled by forced ventilation within 30min after harvesting, the cold air temperature is 10°C, the set wind speed is 1.1m / s, and the pre-cooling time is 1.5h.

[0067] Grading selection: After pre-cooling, grade the melon strips according to the size, appearance, maturity and color, etc., and remove the melons that are too large, too small, and diseased and insects.

[0068] Cleaning and sterilization: Immerse the graded and selected bitter gourd in a cir...

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Abstract

The invention relates to a bitter gourd modified atmosphere packaging and freshness preserving method and belongs to the technical field of vegetable freshness preservation and storage. The method includes the following steps of bitter gourd picking, precooling, sorting, cleaning and sterilizing, film coating and freshness preserving, dehydrating, secondary precooling, modified atmosphere packaging, ultrasonic sterilizing and storage. By means of the mode of combining two times of sterilization, two times of precooling, film coating, freshness preserving and modified atmosphere packaging, high quality of bitter gourd is maintained under the condition that no chemical reagents are used, original taste, flavor and nutrients of food are guaranteed, original taste, flavor and appearance of fresh bitter gourd can be truly ensured, no side effects are caused, and the method is a modern fruit and vegetable freshness preserving method capable of effectively prolonging shelf life.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping and storage of vegetables, and in particular relates to a modified-atmosphere packaging and fresh-keeping method for bitter gourd. Background technique [0002] Bitter gourd tastes sweet and bitter, and is mainly used as a vegetable. It is rich in nutrients. Because of its strong seasonality, high tissue water content, freshness and perishability, bitter gourd has a short shelf life at room temperature. Once the color of the skin turns latent green, it means that the mutation has come. If the top of the melon starts to show yellow, it means that the bitter melon is ripe. Bitter melon is very sensitive to ethylene, and even a very small amount of ethylene can stimulate the rapid ripening of bitter melon. The skin of bitter melon is thin and has ribs all over, so it is easy to be bruised. Once it is injured, ethylene will be produced immediately, which not only promotes its own ripening, but ...

Claims

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Application Information

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IPC IPC(8): A23B7/04A23B7/055A23B7/148A23B7/015A23B7/16
CPCA23B7/04A23B7/015A23B7/055A23B7/148A23B7/16
Inventor 林亚玲刘斌陈盼周航毕峰华
Owner CHINESE ACAD OF AGRI MECHANIZATION SCI
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