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Preservative treatment method for brassica rapa pekinensis

A processing method, the technology of Chinese cabbage, which is applied in the field of vegetable storage, can solve the problems of short shelf life and easy rot and deterioration of Chinese cabbage, and achieve the effect of thorough sterilization and improved shelf life

Inactive Publication Date: 2016-09-28
SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in this simple and extensive rough processing method of Chinese cabbage, such as the short shelf life of Chinese cabbage, and it is easy to rot and deteriorate during transportation and sales

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Pick 100kg of flower bud stage cabbage from the field. After sorting, clean the sand and dirt on the surface of the cabbage with clean water, and then put the cabbage in a sterilization tank to use a mixture of sodium hypochlorite and dimethyl dicarbonate. Sterilize the mixed sterilization solution for 5 minutes, the mass content of active chlorine in the sterilization mixture is 0.5 PPM, and the volume content of dimethyl dicarbonate is 250 μL / L. After the sterilization is over, remove the cabbage core and spin dry the surface Cut off the bottom 0.5cm of the stem of the Chinese cabbage. It is then packaged in a silicic acid film fresh-keeping bag with a silicon window vent, and stored and transported under the cold chain.

[0036] When the temperature is not higher than 20°C, it is placed on the shelf for sale, and the shelf life of Choy Sum is 12 days.

Embodiment 2

[0038] Pick 200kg of cabbage at the bud stage from the field. After sorting, clean the sand and dirt on the surface of the cabbage with clean water, and then put the cabbage in a sterilization tank to use a mixture of sodium hypochlorite and dimethyl dicarbonate. Sterilize the mixed sterilization solution at 22°C for 8 minutes. The mass content of active chlorine in the sterilization mixed solution is 0.4PPM, and the volume content of dimethyl dicarbonate is 260 μL / L. After the sterilization is completed, remove the cabbage and shake it. For the bright water on the dry surface, cut off the 0.6cm bottom of the stems of the Chinese cabbage, then pack it in a PE fresh-keeping bag with a silicon window vent, and store and transport it under the cold chain.

[0039] When the temperature is not higher than 20°C, it is placed on the shelf for sale, and the shelf life of Choy Sum is 10 days.

Embodiment 3

[0041] Pick 250kg of flower bud stage cabbage from the field. After sorting, clean the sand and dirt on the surface of the cabbage with clean water, and then put the cabbage in a sterilization tank to use a mixture of sodium hypochlorite and dimethyl dicarbonate The mixed sterilization solution is sterilized at 26°C for 6 minutes. The mass content of active chlorine in the sterilization mixture is 0.6PPM, and the volume content of dimethyl dicarbonate is 220μL / L. After the sterilization is over, remove the cabbage and Shake the water on the surface, cut off the bottom 0.4cm of the stem of the Chinese cabbage, and then pack it in a PE fresh-keeping bag with a silicon window vent, and store and transport it under the cold chain.

[0042] When the temperature is not higher than 20° C., it is placed on the shelf for sale, and the shelf life of the vegetable heart is 13 days.

[0043] It can be seen from the above examples that the fresh-keeping processing method of Chinese cabbage acco...

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Abstract

The invention provides a preservative treatment method for brassica rapa pekinensis. The preservative treatment method comprises the following steps of: sterilizing brassica rapa pekinensis with a bactericide mixed liquid, wherein the bactericide mixed liquid comprises sodium hypochlorite and dimethyl carbonate, the mass content of active chlorine in sodium hypochlorite in the bactericide mixed liquid is 0.2-0.8PPM, and the volume content of dimethyl carbonate in the bactericide mixed liquid is 200-300mu L / L; packaging the brassica rapa pekinensis subjected to sterilization treatment by using a preservative bag; and performing cold chain storage and transportation on the packaged brassica rapa pekinensis. As a sterilization mode of sodium hypochlorite together with dimethyl carbonate is adopted in the preservative treatment method provided by the invention, relatively thorough sterilization can be achieved, and the shelf life of brassica rapa pekinensis can be prolonged for 1-2 days; the shelf life of the brassica rapa pekinensis can be further prolonged for 1-2 days due to the cold chain storage and transportation mode, the shelf life of an ordinary fresh-cut product is only 6 days, so that the shelf life can be remarkably prolonged by at least 30% due to the preservative treatment method.

Description

Technical field [0001] The present invention relates to the technical field of vegetable storage, in particular to a fresh-keeping processing method of cabbage heart. Background technique [0002] Chinese cabbage, also known as cauliflower, is a one-year or two-year-old herb. It is 30-50 cm high, and the whole is hairless; the stem is erect or ascending. Choy Sum originated in southern China. It is a long-term selection, cultivation and domestication of cabbage easy bolting materials, and has formed different types and varieties. Choy Sum is a specialty vegetable of Guangdong, China. It has soft quality, delicious flavor, and can be cultivated on an annual basis. Therefore, it is a large-scale vegetable in Guangdong, Guangxi and other places. It is sold to Hong Kong and Macau on an annual basis and becomes the main export vegetable; They are exported to Europe and the United States, and are regarded as precious vegetables by consumers. [0003] At present, the fresh-keeping proce...

Claims

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Application Information

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IPC IPC(8): A23B7/157
CPCA23B7/157
Inventor 陈于陇徐玉娟吴继军陈卫东傅曼琴邹波李俊
Owner SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI