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

AI Technical Summary

Problems solved by technology

The 1-methylcyclopropene and calcium peroxide preservative used in this patent belong to chemical reagents, and there is a possibility of chemical pollution, and calcium peroxide is a strong oxidant, which is irritating

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
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a kind of modified atmosphere packaging preservation method for bitter gourd, comprising the following steps:

[0035] S1, preprocessing

[0036] Picking of bitter gourd: pick 7-8 mature, tender, plump, no peculiar smell, no pests and diseases, keep 2-3cm fruit stalks and put them in woven bamboo baskets, so as to facilitate ventilation and storage of bitter gourd, and prevent ethylene accumulation of bitter gourd due to respiration. The melon body turns yellow; the bitter melon is pre-cooled within 30 minutes by forced ventilation, the temperature of the cold air is 10° C., the set wind speed is 0.9 m / s, and the pre-cooling time is 1.5 h.

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

[0038] Cleaning and sterilization: immerse the graded and selected bitter...

Embodiment 2

[0049] This embodiment provides a kind of modified atmosphere packaging preservation method for bitter gourd, comprising the following steps:

[0050] S1, preprocessing

[0051] Picking of bitter gourd: pick 7-8 mature, tender, plump, no peculiar smell, no pests and diseases, keep 2-3cm fruit stalks and put them in woven bamboo baskets, so as to facilitate ventilation and storage of bitter gourd, and prevent ethylene accumulation of bitter gourd due to respiration. The melon body turns yellow; the bitter melon is pre-cooled within 30 minutes by forced ventilation, the temperature of the cold air is 10° C., the set wind speed is 1 m / s, and the pre-cooling time is 2 hours.

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

[0053] Cleaning and sterilization: immerse the graded and selected bitter...

Embodiment 3

[0064] This embodiment provides a kind of modified atmosphere packaging preservation method for bitter gourd, comprising the following steps:

[0065] S1, preprocessing

[0066] Picking of bitter gourd: pick 7-8 mature, tender, plump, no peculiar smell, no pests and diseases, keep 2-3cm fruit stalks and put them in woven bamboo baskets, so as to facilitate ventilation and storage of bitter gourd, and prevent ethylene accumulation of bitter gourd due to respiration. The melon body turns yellow; the bitter melon is pre-cooled within 30 minutes by forced ventilation, the temperature of the cold air is 10° C., the set wind speed is 1.1 m / s, and the pre-cooling time is 1.5 h.

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

[0068] Cleaning and sterilization: immerse the graded and selected bitter...

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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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