Jujube is a mature fruit of deciduous shrub or small arbor plant jujube tree of Rhamnaceae. Jujube trees are widely cultivated in China, reaching Jinzhou and Beizhen in Liaoning Province in the north, with the largest output in Shandong, Hebei, Shanxi, Shaanxi, Gansu, Anhui and Zhejiang.
The famous variety is Jinsixiaozao, with small fruit and high sugar content, which is produced in Leling, Miyun, Beijing and other places in Hebei Province. In addition, there is jujube, also known as "hanging jujube", which is mainly produced in Bin County, Shaanxi Province. The fruit is large, weighing 30-40g, rectangular, thin-skinned, thick-fleshed, small in stone, sweet in taste and ripe in late September.
Jujube has been listed as one of the "five fruits" (peach, plum, plum, apricot and jujube) since ancient times, with a long history. The most prominent feature of jujube is its high vitamin content. A clinical study abroad shows that patients who eat jujube continuously recover more than three times faster than those who simply take vitamins. Therefore, red dates have the reputation of "natural vitamin pills".
Nutritional analysis
1. Jujube can improve human immunity and inhibit cancer cells: Pharmacological studies have found that jujube can promote leukocyte production, reduce serum cholesterol, increase serum albumin and protect the liver. Jujube also contains substances that inhibit cancer cells and even transform cancer cells into normal cells;
People who often eat fresh dates seldom suffer from gallstones. This is because the rich vitamin C in fresh dates converts excess cholesterol into bile acids. With less cholesterol, the probability of stone formation is reduced.
3. Jujube is rich in calcium and iron, which plays an important role in the prevention and treatment of osteoporosis and anemia. Middle-aged and elderly people often suffer from osteoporosis during menopause, and teenagers and women at the peak of growth and development are prone to anemia. Jujube will have an ideal therapeutic effect on them, and its effect is usually incomparable to drugs;
4. It also has a good nourishing effect on people who are weak after illness;
5. Rutin contained in red dates is a substance that softens blood vessels, thus lowering blood pressure and preventing and treating hypertension;
6. Red dates can also resist allergies, remove odors, soothe the nerves, improve intelligence and brain, and stimulate appetite.
Related population
The general population can eat it.
1. Especially suitable for middle-aged and elderly people, teenagers and women.
2. Patients with chronic diseases should eat carefully, those with spleen and stomach deficiency and cold should not eat more, patients with dental diseases should not eat dates, and patients with constipation should eat carefully.
Grams of food stage
Jujube should not be eaten with seafood.
manufacture order
1. Jujube peel is rich in nutrition, so it should be cooked together when stewing soup;
2. Red dates with fresh celery roots can reduce blood lipid and cholesterol to some extent.
food therapy
Jujube is sweet and flat, and enters the spleen and stomach;
Has the effects of invigorating spleen and regulating stomach, nourishing yin and blood, nourishing heart and tranquilizing mind, and relieving medicinal properties;
It can be used for treating anorexia and diarrhea caused by spleen-qi deficiency, and women's impatience caused by yin-blood deficiency. Eating dates after illness also has a good nourishing effect.
Other related
Jujube originated in China and has a long history of cultivation in China. There is a record of "peeling dates in August" in The Book of Songs. In the Book of Rites, there is "jujube, chestnut and honey are sweet"; And used for cooking. "The Warring States Policy" states that "there are benefits of dates and chestnuts in the north ... food is the most important thing for the people" and points out the important role of dates in the north of China. Han Feizi also recorded the use of jujube chestnuts to save the people during the famine in Qin State. Therefore, the common people have always regarded jujube as one of "hardcore crops" and "woody food". Jujube has been used as medicine for a long time, and it has been recorded in Shennong Herbal Classic, which has been recorded in all previous dynasties, and the understanding of its health preservation and treatment has been deepened. Today, red dates are regarded as an important tonic, and there is a saying that "three dates a day will never grow old". Today, red dates are still one of the main raw materials for cooking dried fruits in China.
China jujube was introduced into Mediterranean coast and western Europe through Syria in about 1 century, and into North America from Europe in19th century.
comment
1. Good red jujube skin is purplish red, with large and uniform particles, short and round fruit lines, few wrinkles and shallow traces; If there are many wrinkles, deep marks and sunken fruit rows, it is a dry product with poor meat quality and immature fresh dates; If the stem end of jujube is perforated or stuck with brown or dark brown powder, it means that it has been eaten by insects;
2. Excessive consumption of jujube can cause hyperacidity and bloating;
3. Rotten jujube will produce fruit acid and methanol under the action of microorganisms. People who eat rotten dates will have poisoning reactions such as dizziness and visual impairment, which may endanger their lives and should be paid attention to;
4. When eating raw, jujube peel is easy to stay in the intestine and is not easy to be discharged, so spit it out when eating jujube;
Eating too many dates will make you angry. If pregnant women have abdominal distension, don't eat dates. It doesn't matter if you just drink jujube soup.