Winter jujube is high in calories. Winter jujube is named frozen jujube because of its late maturity (maturity in the first half of June 5438+10). Jujube is big, thin-skinned, fresh and juicy, sweet and delicious, sweet and sour, and has excellent flavor. Its nutritional components are: dietary fiber 2.3%, total sugar 27.3%, aspartic acid, threonine, serine and other 19 amino acids, including 8 essential amino acids, with a total content of 0.985 mg/100 g, total flavonoids 0.26%, nicotinic acid 0.87% and vitamin B65438. In addition, winter jujube is also rich in vitamin A, vitamin E and various trace elements such as potassium, sodium, iron and copper. It has the reputation of "king of all fruits" and "living vitamin pills".

Fresh dates are rich in a bioactive substance called cyclic adenosine monophosphate (CAMP). This substance has a strong destructive and inhibitory effect on cancer cells in the human body. Clinical evidence shows that the substance has a significant effect on coronary heart disease, myocardial infarction, cardiogenic shock and other diseases. In addition, it also contains rutin, which is an effective drug for treating hypertension. Therefore, from the perspective of food diversification and nutrition and health care, it is of great significance to develop fresh jujube varieties mainly winter jujube.