Irradiation fresh-keeping Technology of garlic

After garlic matures, it begins to germinate and enter the reproductive growth of cell division, resulting in loose petals, dryness, loss of nutrients and loss of edible value during storage. Irradiation processing is carried out with Y-ray during dormancy, and the radiation energy is used to cause damage to garlic scale buds, inhibit its normal growth, prevent germination, reduce nutrient consumption during storage and transportation, ensure commodity quality, and meet the hygienic standard of safe storage. this is commonly known as garlic irradiation fresh-keeping technology.

Harvest and pretreatment of garlic. Due to the different characters of garlic varieties, the suitable storage period of garlic varies from place to place, so we should grasp the suitable storage period which is beneficial to the storage of garlic. Generally speaking, when the total garlic foreskin aging and water loss thinning, but the color is still fresh to begin physiological dormancy, it should be harvested and excavated in time. After the garlic is dug out, the bundles are bundled, stacked or braided or tied into a garlic handle, dried and dried, shaking the soil; cut off the garlic, sifted and graded. The grade garlic is packed in polypropylene woven bags, corrugated cartons, whiteboard cartons, wicker baskets or nylon mesh bags into units of about 25-30 kilograms, and the mouth of the bag is tied up with plastic rope. To facilitate the technological operation of transportation and radiation processing.

The practice of determining the suitable irradiation period of garlic shows that the storage effect is the best when irradiation is carried out in the dormant period. The dormancy period of different varieties of garlic is very different (about 60-69 days). Therefore, it is very important to determine the appropriate period of irradiation.

Identification and storage of irradiated garlic. After receiving Y-ray irradiation, the cell damage and cell division of garlic scale buds were blocked, and gradually developed into abnormal buds, which could not form normal stems and roots and atrophied, and the buds became brownish red. It was observed that most of the garlic treated in the early, middle and late stages were in early September, and the scale buds turned brown (the buds turned red). According to this anatomical feature, the effectiveness of irradiation treatment of garlic can be identified.

Due to the inhibition of germination by irradiation, garlic can be stored in a cool, ventilated and dry place for a short time because it is resistant to high temperature and low temperature storage. However, considering the difference of natural conditions and long-term storage, storage should be set up, moisture-proof, heat dissipation and ventilation should be paid attention to at the initial stage, and convective ventilation windows should be set up in the stack room. The stacking should be 6-8 bags high and 2 bags wide. There are channels between the stacks and wooden boards are laid at the bottom. During the whole storage period, the stack was stacked 1-2 times on a sunny day to eliminate the hot and humid air in the pile. In this way, it can be stored for about 6 months, and when it is released from the warehouse during the Spring Festival next year, it can still meet the requirements of the hygienic standard of irradiated garlic issued by the Ministry of Health of China. Irradiated garlic is guaranteed to have inherent color and spicy taste, full garlic, no moth, no decay, no peculiar smell, no sprouting.