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Cooling and refreshing method of zizania aquatica

A fresh-keeping method and technology of water jasmine, which are applied in the preservation of fruits and vegetables, preservation of fruits/vegetables by freezing/refrigeration, food preservation, etc., can solve the problems of high humidity, inability to extend the shelf life of water jasmine, and increased breathing, etc. The effect of reducing energy consumption

Inactive Publication Date: 2015-04-08
姜芬
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  • Application Information

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Problems solved by technology

[0003] Chinese invention patent CN101773157A discloses the "preservation method of wild rice stems", which can store wild wild rice stems for 60 days, but the humidity of this method still cannot meet the habit requirements of wild wild rice stems, resulting in increased respiration, which cannot better extend the shelf life of wild wild rice stems
Due to the low storage temperature and high humidity required by Zizania, there is currently no suitable method for long-term storage of Zizania

Method used

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  • Cooling and refreshing method of zizania aquatica

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Carry out the following treatment and preservation to the harvested Zizania zizania:

[0022] 1) Harvesting and cleaning: select mature Zizania japonica for picking, and then wash it, select Zizania zizania with uniform size, no damage and no damage from diseases and insect pests for use, and repeat the cleaning 3 times;

[0023] 2) Ozone disinfection: the cleaned and sorted wild rice stems are soaked in ozone water with an initial concentration of 2 mg / L at room temperature for 10-15 minutes to kill the spoilage microorganisms on the surface;

[0024] 3) Ventilate and dry: ventilate and dry the surface moisture at room temperature;

[0025] 4) Pre-cooling: Pre-cool the prepared Zizania zizania raw materials, the pre-cooling temperature is 2°C-4°C, and the pre-cooling time is 24-36h;

[0026] 5) Divide into boxes: put the dried wild ...

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Abstract

The invention relates to a cooling and refreshing method of zizania aquatica. The cooling and refreshing method comprises the following main steps: picking and cleaning; ozone disinfection; ventilation and airing; precooling; subpackaging and boxing; low-temperature storage and the like. A low-temperature storage chamber is used for refreshing storage in a low-temperature and high-humidity refrigeration storage with the temperature being 0-2 DEG C and the humidity being 98%-100%; the low-temperature and high-humidity refrigeration storage adopts a temperature-humidity adjusting device of a heat-recovery type water-air heat exchanger, and is provided with the water-air heat exchanger; ice water in an ice storage pool is sprayed on fillers of the water-air heat exchanger; outside air is used for reducing the temperature, increasing the humidity and exchanging the heat in the water-air heat exchanger so as to realize humidification and cooling for the air; and low-temperature and high-humidity gas is conveyed to the refrigeration storage by a fan so as to carry out temperature reduction, humidity maintenance and cooling on the zizania aquatica in the refrigeration storage. The cooling and refreshing method has the advantages that the quality of the zizania aquatica stored according to the method is not obviously reduced, so that the cooling and refreshing method is a good method for prolonging the storage period of zizania aquatica.

Description

technical field [0001] The invention relates to a fresh-keeping method for fruits and vegetables, in particular to a cooling and fresh-keeping method for wild rice stems. Background technique [0002] Zizania, also known as Zizania melon, Zizania bamboo shoots, and wild rice head, is native to China and Southeast Asia. It is a perennial swamp herbaceous plant in the Poaceae family. It likes wet swamps and survives the winter with its perennial roots. At present, there is a large area of ​​cultivation in China, especially the largest cultivation area in the Yangtze River Basin, and the annual production of wild rice stems in Jiangsu ranks first in the country. Asparagus is delicious and nutritious, and is deeply loved by people. Its harvesting and listing periods are mostly in May-June and August-October, and the off-peak season is obvious. Although wild rice stems are watery and tender, they are not resistant to storage after harvesting, and are prone to problems such as y...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/04A23B7/00
CPCY02P60/85
Inventor 姜芬
Owner 姜芬
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