Red jujube vacuum pulsing infrared peeling device and method

• Main Authors: HUANG ZHIGANG, FAN XIAOZHI, XIN HONGBING, LI QUANLAI, ZHANG WEIPENG, JU HAOYU, CHEN CHANG, ZHANG XIAOQING
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2019
• Subjects: APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS; FOODS OR FOODSTUFFS; HUMAN NECESSITIES; MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLESOR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

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 hea