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Stress preservation apparatus for broccoli and application method thereof

A fresh-keeping device and technology for broccoli, which are applied in the fields of fruit and vegetable fresh-keeping, application, food preservation, etc., can solve the problems of lack of broccoli stress device, etc., and achieve the effects of prolonging the fresh-keeping period, inhibiting physiological metabolism, and inhibiting yellowing

Pending Publication Date: 2017-10-24
NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is a lack of a professional broccoli stress device in production, so that broccoli can inhibit its own physiological metabolism and preserve the original nutritional quality under suitable low temperature stress and low light stress conditions.

Method used

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  • Stress preservation apparatus for broccoli and application method thereof
  • Stress preservation apparatus for broccoli and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A broccoli stress fresh-keeping device mainly includes a frame, a low temperature stress part, and a light stress part; it is characterized in that:

[0040] The low temperature stress is composed of a sub-low temperature chamber 11, a sub-low temperature chamber body 15, a chamber door 12, a refrigeration unit 4, a refrigeration pipeline 3, a cooling fan 2, an even temperature air supply orifice plate 6, and a cold storage plate 14; One side is connected with the uniform temperature air supply orifice, and the other is connected with the refrigeration pipeline and the refrigerating unit in turn. The temperature control is that the cold air generated by the refrigeration unit diffuses into the warehouse through the cooling pipeline and the cooling fan through the uniform temperature air supply orifice, so that the sub-low temperature warehouse and the cold storage plate are cooled and stored, and the temperature change is sensed by the temperature sensor in the bottom se...

Embodiment 2

[0043]A kind of fresh-keeping method of broccoli stress fresh-keeping device to broccoli:

[0044] (1) Turn on the PLC control system 12 hours in advance, set the control temperature parameter (generally 2°C), the set value is 2°C lower than the fresh-keeping temperature value, and start the refrigeration unit to cool down the sub-low temperature chamber and the cold storage plate for cold storage;

[0045] (2) Set the light quality and light intensity (generally red light 620-660nm, blue light 455-485nm range of specific wavelength light source combination, the intensity is 600-900lux.

[0046] (3) After the sub-low temperature storage is cold storage and the temperature field is uniform, the light field is uniform and the light intensity is stable, the temperature setting value is adjusted to the fresh-keeping temperature value (generally 4°C), and the broccoli is put into the sub-low temperature storage for rapid pre-cooling.

[0047] (4) After the pre-cooling is completed ...

Embodiment 3

[0052] Comparative test: Effect of broccoli stress preservation device on broccoli storage and preservation (26 days at 5°C)

[0053]

[0054] in conclusion:

[0055] 1. The device can effectively inhibit the yellowing and flowering of broccoli.

[0056] 2. The device can effectively inhibit physiological metabolism and effectively maintain the content of functional components such as flavonoids and sulforaphane in flower buds.

[0057] 3. The device can effectively prolong the preservation period of broccoli. When stored at 5°C for 26 days, the sensory score is 7.5 points, while the sensory score of ordinary storage is only 4 points.

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Abstract

The invention discloses a stress preservation apparatus for broccoli and an application method thereof. The stress preservation apparatus comprises a frame, a low-temperature stress part and a light stress part, wherein a sub-low-temperature cabin is composed of a heat-preserving cabin body, a cabin door, an equal-temperature air-supplying pore plate and cold storage plates; a multi-light-source light supplementing system is composed of a multi-light-source LED lamp group, a sensor group and a telescopic rod capable of automatically adjusting distance; temperature control in the sub-low-temperature cabin is realized in such a way that cold air generated by a refrigerating unit passes through a cold air machine and is then diffused into the sub-low-temperature cabin via the equal-temperature air-supplying pore plate so as to promote cooling and cold storage of the sub-low-temperature cabin and the cold storage plates, and a temperature sensor in the bottom sensor group senses temperature changes and feeds back the temperature changes to a PLC control system; moreover, a top-mounted intelligent fan can automatically adjust gas composition in the cabin and discharge gas with peculiar smell. The stress preservation apparatus for broccoli provided by the invention provides proper low temperature, illumination and gas concentration needed in storage of broccoli and achieves the purposes of inhibiting yellowing of the broccoli, prolonging the shelf life of the broccoli and maintaining the quality of the broccoli.

Description

technical field [0001] The invention belongs to the technical field of fruit preservation, and in particular relates to a broccoli stress preservation device and a use method. Background technique [0002] Broccoli, also known as cauliflower, green cauliflower, and green cauliflower, is a variety of Brassica cabbage. Broccoli not only has a good taste, rich nutrients such as protein, vitamins, cellulose, carotene and various minerals, but also has a significant anti-cancer effect, so the market value is very high and the prospect is broad. [0003] However, in the post-harvest logistics of broccoli, because the flower buds are easy to bloom and loosen, and then wilt, yellow, rot and increase the degree of lignification, the commerciality of this special vegetable declines rapidly, and the shelf life is very short. To a certain extent, it limits the healthy development of the broccoli industry. The main reason for these problems is that the tissues of these characteristic v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/00A23B7/04
CPCA23B7/00A23B7/04
Inventor 阎瑞香张娜于晋泽陈存坤纪海鹏董成虎
Owner NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
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