1, nutritional value: Jujube is rich in sugar, vitamin C and cyclic adenosine monophosphate, which can reduce the damage of various chemicals to the liver, promote the synthesis of protein in the liver, increase the content of serum hemoglobin and albumin, adjust the ratio of albumin to globulin, and reduce the level of serum alanine aminotransferase. In clinic, jujube can be used as an adjuvant treatment for chronic hepatitis and early cirrhosis.

2. Winter jujube is rich in vitamin C and vitamin P, and also contains vitamin A, vitamin E, potassium, sodium, iron, copper and other trace elements. It is very beneficial to improve capillaries, maintain the elasticity of blood vessel wall and resist atherosclerosis; Winter jujube also contains rutin, which is an effective drug for treating hypertension, so it is very helpful for the prevention and treatment of coronary heart disease, hypertension and atherosclerosis.

3. Storage method: the storage room should be disinfected. Before jujube storage, the storage place must be thoroughly cleaned, and the ground, shelves and plastic boxes should be disinfected. Can greatly reduce the base of pathogenic bacteria. Cold air pre-cooling: two days before storage, the storage temperature of jujube fruit is reduced to -2℃ and 0.5℃, and the jujube fruit is quickly put into the cold storage. When the temperature of jujube fruit is consistent with that of cold storage, it can be put into fresh-keeping bags or decompression containers. Pre-cooling time should not be too long to avoid water loss of jujube fruit.