A vacuum pulsation infrared peeling device and method for jujube

A vacuum pulsation and infrared technology, applied in the fields of vegetable or fruit peeling, food science, application, etc., can solve the problems of disjointed processing, complicated operation, high equipment investment, shorten the peeling process, avoid waste water parameters, The effect of reducing equipment investment and floor space

Inactive Publication Date: 2020-12-01
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disconnection between peeling and post-processing is likely to cause problems such as flavor and quality deterioration
The mechanical peeling method, due to factors such as high equipment investment and complicated operation, has a lot of sticky pulp. For peeling red dates, there is no peeling machine that has been widely used.

Method used

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  • A vacuum pulsation infrared peeling device and method for jujube

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] a) Fresh jujubes 6 of uniform size are cleaned and dried at room temperature, and placed on the tray 14 evenly in a single layer. Close the hatch, and now the vacuum drying chamber 5 is in a normal pressure state, which is the local actual atmospheric pressure; the air-breaking solenoid valve 2 and the vacuum solenoid valve 8 are in a closed state, and the vacuum drying chamber 5 is completely sealed.

[0053] Wherein, the distance between the tray 14 and the upper infrared heater is 40mm, and the distance between the infrared heating plate and the bottom is 30mm, and the temperature sensor 15 is located at about 5mm above the jujube 6.

[0054] b) Start the vacuum pulsation infrared peeling device, respectively set the infrared peeling heating time, infrared peeling heating temperature, the rotation speed of the motor 13, the vacuum degree of the vacuum tank 9 on the touch screen 16; the number of times of vacuum pulsation peeling; vacuum infrared Drying time and vacuu...

Embodiment 2

[0066] a) Fresh jujubes 6 of uniform size are cleaned and dried at room temperature, and placed on the tray 14 evenly in a single layer. Close the hatch, and now the vacuum drying chamber 5 is in a normal pressure state, which is the local actual atmospheric pressure; the air-breaking solenoid valve 2 and the vacuum solenoid valve 8 are in a closed state, and the vacuum drying chamber 5 is completely sealed.

[0067] Wherein, the distance between the tray 14 and the upper infrared heater is 50mm, and the distance between the infrared heating plate and the bottom is 40mm, and the temperature sensor 15 is located at about 5mm above the jujube 6.

[0068]b) Start the vacuum pulsation infrared peeling device, respectively set the infrared peeling heating time, infrared peeling heating temperature, the rotation speed of the motor 13, the vacuum degree of the vacuum tank 9 on the touch screen 16; the number of times of vacuum pulsation peeling; vacuum infrared Drying time and vacuum...

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Abstract

The invention belongs to the field of agricultural product processing, and relates to a method and device for peeling a red jujube without losing nutrients, in particular to a red jujube vacuum pulsing infrared peeling device and method. According to the method, the red jujube is dried and heated in a vacuum environment, the jujube peel gets hot quickly in a short time under the action of high temperature, the cortex temperature is rapidly increased, the water under the cortex is vaporized, and the pressure is suddenly increased; the original pectin between the peel and the pulp is hydrolyzedand loses gelling property, and the link between the tissues is destroyed and leads to separation of the peel and the pulp; the peel is thus expanded and ruptured, and then is quickly removed by the action of high-speed cooling airflow. Compared with the hot alkali peeling, the method has the advantages of high speed, no pollution and no waste water. The device comprises a heating chamber, a vacuum system, an infrared heating system and a control system. The device can effectively achieve the intelligent adjustment of the vacuum degree in the heating chamber, and achieve the rapid peeling of the red jujube. The surface of the peeled red jujube is free of water stain, and is neat.

Description

technical field [0001] The invention belongs to the field of technical processing of agricultural products, and relates to a processing method and equipment for jujube non-nutritional shedding and peeling, in particular to a non-chemically treated jujube peeling device and method. Background technique [0002] Jujube is a temperate crop with strong adaptability and wide planting range. Known as the "hardcore crop", jujube has the characteristics of tolerance to drought and waterlogging, and is the first choice for the development of water-saving forestry and fruit industry. Because it is rich in vitamin C, it also has the reputation of "natural vitamin pills", which has the functions of strengthening the spleen and stomach, helping digestion, and nourishing blood. [0003] In addition to being eaten fresh or dried, red dates are usually processed into jujube pulp as industrial raw materials. Jujube skin belongs to cutin crude fiber, and its texture is relatively hard. For ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A23N7/00A23N12/06
CPCA23N7/00A23N12/06
Inventor张卫鹏陈畅黄志刚辛洪兵范晓志张小青李全来巨浩羽
OwnerBEIJING TECHNOLOGY AND BUSINESS UNIVERSITY