Infrared hot air drying method of fistular onion stalks pretreated through union of vacuum and ethanol

A hot air drying and pretreatment technology, applied in food drying, application, food preservation, etc., can solve the problems of long drying time, complicated equipment operation, short storage period, etc., to improve the efficiency of osmotic dehydration, solve environmental pollution, increase ventilation The effect of permeability
CN110447707AInactive Publication Date: 2019-11-15CHUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHUZHOU UNIV
Publication Date
2019-11-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of processing of agricultural products, and particularly discloses an infrared hot air drying method of fistular onion stalks pretreated through union of vacuum and ethanol. The method comprises the following steps of sorting fresh fistular onion stalks of which the surfaces are free from mechanical damage and free from insect pests, removing outer coating, performing cleaning, and performing cutting into segments, to obtain fistular onion stalk rings; performing union of vacuum and ethanol for permeation treatment; and performing infrared hot air drying, and finally, obtaining dehydrated fistular onion stalk products. Compared with infrared hot air drying for fistular onion stalks which are not pretreated, a permeation dehydration technique combining vacuum with ethanol has the advantages that product quality of the infrared hot air drying efficiency, the rehydration properties, the sterilizing effects and the like of the fistular onion stalks are improved, and a new method is provided for industrial production and dry making of fistular onion stalk products. The ethanol is used as a permeation dehydration solution, and compounds on cell walls dissolve, so that the permeability is improved, the permeation dehydration efficiency is improved, the subsequent infrared hot air drying rate can be increased, the ethanol also has the effectof sterilization, and environmental pollution caused by conventional sterilization can be solved.
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Description

technical field

[0001] The invention relates to the technical field of agricultural product processing, in particular to a scallion white infrared hot air drying method using vacuum combined with ethanol pretreatment. Background technique

[0002] Green onions are not only an indispensable condiment in daily life, but also an important vegetable for my country's export earnings. Scallions are rich in nutrition. In addition to vitamins and other substances, they are also rich in allium, which has the effect of sterilizing and inhibiting the growth of microorganisms. Eating raw scallions can also prevent and treat influenza. It can also effectively prevent gastric cancer and various cancers . Infrared hot air drying is a new type of combined drying method, which combines the advantages of infrared and hot air drying to obtain higher quality products and a faster and more convenient drying process. Further research and development of fruit and vegetable pretreatment methods, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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