Jujube nourishes blood, but how many jujubes is it good to eat a day?

Nutritional analysis

Related population

Grams of food stage

manufacture order

food therapy

Other related

comment

Interpret the mission of jujube industry;

Nutritional analysis of book information

Related population

Grams of food stage

manufacture order

food therapy

Other related

comment

Interpret the mission of jujube industry;

Book information

A, plant introduction:

Scientific name: Zizyphus jujuba

English name: jujube or China jujube (English is date jujube).

Classification: Dicotyledonous plants, Rhamnaceae.

Also known as red dates, beautiful dates and good dates.

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 Laoling, Shandong, Cangxian, Hebei and Miyun, Beijing. 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. Sihong jujube in Sihong, Jiangsu Province was proved by experts from Nanjing Agricultural University, Jiangsu Agriculture and Forestry Department and China Jujube Research Institute. Among more than 700 known jujube varieties in China, Sihong jujube has the largest fruit type. This variety is immune to jujube witches' broom and has better resistance to fruit shrinkage and anthracnose than other varieties.

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".

"Zizyphus jujuba" wrote: "Jujube, the name of fruit tree, belongs to Li Ke, a deciduous tree with erect or hooked thorns. The leaves are long and oval, the base is broad and oblique, and there are three veins. Stipules are prickly and stay on the branches forever. Cymes, born in leaf axils, have small yellow-green flowers, a disk and a lot of nectar. Drupe is oblong, yellow when tender and purple when mature. Propagation by ramets, grafting, etc. China, Hebei, Shandong, Henan, Shaanxi, Gansu, Shanxi and other places. There are many varieties, such as' Jinsixiaozao' in Laoling, Shandong,' Seedless Jujube' in Cangxian, Hebei and Qingyun, Shandong, and' Yiwu Jujube' in Zhejiang. The fruit is edible medicine, and the wood is hard, so it can be used for carving or as furniture for vehicles and boats. "

Classification of jujube varieties

(1) is generally divided into two ecotypes: Nanzhao and Beizao, with the annual average temperature 15 degrees as the boundary.

(2) According to the size and shape of the fruit ① According to the size of the fruit, it can be divided into jujube and jujube. Jujube such as Lingbao Jujube, Huizao, Zanhuang Jujube, Fuping Jujube, etc. Jujube such as golden jujube, seedless jujube, heart-shaped jujube and so on. ② According to the size and shape of fruits, they were divided into 6 categories. Jujube, such as golden jujube, seedless jujube, warm heart jujube, Miyun jujube and so on. Long jujube types, such as Langzao, Hu Ping Jujube, Junzao, Zanhuang Jujube, Guanyang Changhong, etc. Round jujube type, such as Zanhuang round jujube, round bell jujube, slow de round jujube and so on. ; Oblate, such as winter jujube and flower jujube; Ripped dates, such as goat's milk dates, gourd dates and mopan dates; Jujube with persistent calyx, such as persimmon top jujube and Wuhua jujube.

(3) Classification by use This is the most commonly used classification method: ① Dry varieties. It is characterized by thick meat, less juice, high sugar content and fast drying speed. Such as golden jujube, Zanhuang jujube, broken jujube, Lingbao jujube, Langzao jujube and Xiangzao jujube. ② Types of fresh food. Its characteristics are thin skin, tender and crisp meat and sweet juice. Such as winter jujube, Linyi pear jujube, big white bell, honey pot and so on. ③ Dual-purpose varieties. It can be eaten fresh or dried in the sun or processed into candied dates and other products. Such as Mingshan jujube, Junzao jujube, Huizao jujube, Jinzao jujube, Hu Ping jujube and Banzao jujube. ④ Jujube varieties. It is characterized by large and tidy fruit, thick and loose meat, less juice, thin skin, low sugar content, large cell cavity and easy absorption of sugar juice. Such as Yiwu jujube, Xuancheng pointed (round) jujube, Guanyang long jujube and so on.

Distribution of origin

Originally from China, it was rich in Yannan and Weibei as early as the Warring States Period, and was planted in most parts of the country.

morphological character

Deciduous trees with zigzag branches. There are long branches (jujube heads) and short branches (jujube stocks), and the long branches are zigzag. The leaves are oval, with a slightly sharp or blunt top and an inclined bottom. Flowers are small, yellow-green, and 8-9 flowers are clustered in the axils of deciduous branches (jujube hanging) to form cymes. Drupe oval, dark red. The flowering period is May-June, and the fruiting period is 9-65438+1October. Leaves alternate, ovate to ovate-lanceolate, serrate, with 3 veins at the base; Stipules become thorns, long thorns extend straight, and short thorns hook. Axillary cymes; Flowers are small and yellow-green; Sepals 5, large; Petals 5, strip; 5 stamens, opposite to petals; Carpels 2, connate, ovary superior, 2-loculed, ovule per locule 1. Drupe is oblong and pointed at both ends, and usually only 1 seed develops. The flowering period is May-June, and the fruiting period is September. China specialty, mainly producing alluvial plains in the Yellow River Basin, is cultivated all over the country. It is the main fruit tree and woody grain tree species in China.

Growth habit

Positive tree species in warm temperate zone. I like sunshine, and the climate is so dry. Cold-tolerance, heat-tolerance and drought-resistance are not strict with the soil. Plain, sandy land, valleys and mountains can grow except marshland and heavy alkaline soil, and the pH adaptation range is between 5.5 and 8.5, with fertile slightly alkaline or neutral sandy loam growing best. Developed root system and strong tillering ability. Smoke resistance. Not resistant to water mist.

Garden use

The branches of jujube trees are vigorously pulled out, and the green leaves are shaded, and there are many Zhu Shi. It is suitable for scattered planting or piece planting in gardens and roadsides, and it is also a good tree species combined with production. Its old root, Gu Gan, can be used as a stump bonsai. Fruit can be eaten fresh, or processed into red dates, black dates, candied dates and other foods. Fruits and roots can also be used as medicine.

Apiculture use

Jujube trees begin to bloom in late May or early June, and the flowering period is 25-30 days. It is a high-temperature honey-secreting plant, and the optimum honey-secreting temperature is 25 ~ 33℃. Young jujube trees have few flowers, and flowers begin to bloom at the age of 10, and flowers are dense at the age of 20-50, with a large amount of honey secretion. In normal years, each colony of bees can produce honey 10 ~ 25 kg.

Breeding and cultivation

Propagation is mainly based on branching and grafting, and some varieties can also be sown.

It has been cultivated for two thousand years. Sweet fruit, rich in vitamin C, can be eaten raw, and can also be used to make candied fruit, preserved fruit and wine. Fruit medicine can tonify the spleen and stomach, moisten the heart and lungs, replenish qi and nourish glory. Wood is hard and dense, and is used for making utensils and carving. It has a long flowering period and is an excellent nectar source tree.

Second, the detailed explanation of Chinese characters:

Jujube z m 4 o jujube; Got it. Start with a double (c √). You, Mumang. Jujube trees are prickly. Original meaning: jujube tree

Jujube, sheep jujube also. -Shuo Wen

There are eleven dates, one of which is a sheep date. -"Erya"

The towel fell on the jujube flower. -Shi's "Huanxisha"

Fruit of jujube tree

Peel dates in August and get rice in October. -Poetry, Adversity and July

Pear, chestnut, jujube, persimmon. -Song Sima Guang's "Cultivating Self-cultivation"

Another example: jujube pit (jujube pit); Jujube vegetables (dates and vegetables); Candied dates (dried fruits made of dates); Jujube hazel (jujube hazel); Jujube fruit (jujube); Jujube vegetables (jujube and vegetables)

Zheng code:, u: 67a3,: D4E6.

Number of strokes: 8, radical: wood, number of strokes: 12523444.

Third,

jujube

(jujube)

state in the Zhou Dynasty

ㄗㄠˇ

Deciduous shrub or tree with spiny branches, oval leaves and small yellow flowers. The oval drupe is called "jujube" or "jujube". It is red when it is ripe and edible: ~ red. ~ mud. Swallow ~ (metaphor reading, etc. No analysis and discrimination).

Zheng code:, u: 67a3,: D4E6.

Number of strokes: 8, radical: wood, number of strokes: 12523444.

Ancient jujube trees in China

The Legend of General Tree in Qingyun County

Author: Li, member of Jiu San Society

The average tree is the Tang jujube tree in Qingyun County. This tree is located in the south of Zhoujia Village, Zhanghou Township, Qingyun Town, on the south bank of Qianjin River in Zhang Weixin. There are countless legends about this old jujube tree. Lu Yuanpei, who was appointed as the magistrate of Qingyun County in the first year of Emperor Kangxi of Qing Dynasty, once wrote a poem praising this strange tree "half an acre of clear shade, vicissitudes of life towering." Countless branches have their own colors, preferring to leave the ice and snow. Gao Shi is arrogant in building a house, and the general sits on the ground and sends his generals. Talk about pearls and then know that profits are definitely the first in South China. "As can be seen from the description of the old jujube tree in this poem, this tree has been shaded for half an acre at most after thousands of years. Despite the vicissitudes of life, there is still a towering trend and prosperity. General McCullough and these heroes of Wagangshan risked their lives to get in and out of Qingyun for the inheritance of the Tang Dynasty, and it was definitely not the first time. Every time they came here, they tied their horses and sat on the ground to rest. It also discussed military affairs and became a place for general Wagangshan to discuss and rest in the wild, so the locals had three names at that time. One is the statement of general Shu; Second, some people call this tree Wagangshan General Chamber of Commerce; Third, because General McCullough once tied a horse here, it is also called McCullough tied a horse stake.

General McCullough has a soft spot for this tree and wanders back and forth. In the hot season, war horses can rest when they see ancient trees, and they are also happy to rustle for a long time. In the mature season, you can pick baskets of red dates like red pearls. As we all know, General Luo Cheng was the founding general of the Tang Dynasty. When he passed Qingyun back and forth, the Tang Dynasty had not yet been established. The Sui Dynasty was founded in 58 1 and ended in 6 18. It has been 139 1 year since the Sui Dynasty was overthrown, with a history of only 37 years. Therefore, General mccullough should choose a tree that can cool himself and tie his horse. His horse is not an ordinary horse, but a short-tempered BMW pony loved by millions of soldiers. This ancient tree was at least 200 years old at that time. According to the poem recorded in the Annals of Qingyun County in the Fourth Year of Xianfeng, Qing Dynasty, this ancient jujube tree was planted at least in the period of 479-502 AD in the Southern and Northern Dynasties. Why is such an old jujube tree called Tangzao?

There is a story among Qingyun people, because General McCullough often tied his horse to rest under this tree. One year, he rested under an old jujube tree, which was around August 15th. The tree was full of fruits, and General mccullough was hungry, so he picked dates to satisfy his hunger. That jujube is sweeter than honey, and he has a great responsibility this time. General McCullough will represent Wagangzhai hero to meet Tang Guogong Li Yuan to discuss cooperation to overthrow the corrupt Sui Dynasty. The general came in a hurry without a gift. General Luo ate this sweet jujube, gave money to the owner of this tree, bought the red jujube on this tree as a gift, and went to see Tang Guogong Li Yuan. The owner of this tree said that he didn't want General Luo's money anyway, so he filled the general's commissary bag. General Luo thanked the villagers and hurried to Tang gaozu's camp day and night. General Luo met Li Yuan and presented a red jujube gift. Li Yuan took it and asked, "What did General Luo offer?" Luo Cheng replied: "Returning to the Tang Dynasty is a precious fructose jujube in the world." Li Yuan ate a few and nodded. Tang gaozu immediately tasted the dates brought by General McCullough with Li Shimin and his generals. The generals headed by Li Shimin said loudly with one voice, "How sweet! It is really a sugar jujube! " After this cooperation and consultation with jujube as the medium, a consensus was reached to overthrow the Sui Dynasty. And it was one victory after another, which soon overthrew the Sui Dynasty.

When Li Yuan was discussing with ministers the country name used in the founding of the People's Republic of China, he went out to play: "My father wanted to use Tang as the country name for two reasons. First, my father was Tang Guogong, and second, General McCullough used sugar dates as a medium, which enabled us to reach a consensus with the heroes of Wagangzhai. All the heroes in Wagangzhai surrendered to us except Dan Xiong Xin, who are loyal generals. General Mai died to overthrow the Sui Dynasty, and we will commemorate the Sugar and Jujube Delivery Alliance from generation to generation. Tang gaozu was overjoyed: "Very reasonable. "The legend of the emergence of the Tang Dynasty and Qingyun ancient dates has been passed down from generation to generation. Sugar jujube and sugar jujube have spread all over China and every corner of the earth.

It is said that when the Prince of Yan swept the north in the Ming Dynasty, many locals hid under the Tang jujube tree, and suddenly the fog filled everyone, so the locals also called the Tang jujube tree a sacred tree. 1989, Qingyun county party Committee and government erected a monument for Tang Zao, and the word "Tang Zao" was inscribed by the famous calligrapher Mr. Jiang Weisong. Seal script is elegant and generous. The inscription was written by Mr. Zong Weicheng, a 76-year-old professor of Shandong Art College at that time, with more than 300 words in regular script.

Although this general tree has experienced more than 1600 years of wind and rain, it is still flourishing. It is the oldest jujube tree in China and has been included in the Dictionary of Places of Interest in China. Although the jujube trees in the Tang Dynasty have experienced vicissitudes of life and suffered repeated defeats, they are still deeply rooted and luxuriant, as vigorous and elegant as dragons and phoenixes, with hollow trunks that can accommodate people. Every autumn harvest, you can still hit 100 kilograms of dates. There are many ancient jujube trees around the general tree, so the Tangzao Ecological Sightseeing Park was built. In 2008, the tourist park was rated as a provincial-level eco-sightseeing agricultural tourism demonstration site. Now that she is protected by the government, all the tourists who come to Qingyun linger under this general tree, and many people take photos with the general tree as a souvenir.

[Edit this paragraph] 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.

[Edit this paragraph] Relevant persons

The general population can eat it.

[Edit this paragraph] Eat like a gram.

Jujube should not be eaten with seafood.

[Edit this paragraph] Production description

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.

[Edit this paragraph] Therapeutic effect

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.

Jujube has always been a good product for invigorating qi and nourishing blood and calming the nerves, which is beneficial to patients with hypertension, cardiovascular diseases, insomnia and anemia.

Jujube is delicious in meat, sweet in color and rich in nutrients such as protein, fat, sugar, vitamins and minerals. Therefore, jujube has always been a good product for invigorating qi and nourishing blood, calming the nerves and calming the mind, which is very beneficial to patients with hypertension, cardiovascular diseases, insomnia and anemia. Jujube is not only a good product for health care, but also a good product for skin care and beauty.

1, prevention and treatment of cardiovascular diseases Jujube is rich in vitamin C and vitamin P, which is very beneficial for improving capillaries, maintaining the elasticity of blood vessel walls and resisting atherosclerosis. Jujube contains cyclic adenosine monophosphate, which can dilate blood vessels, increase myocardial contractility and improve myocardial nutrition, so it can prevent and treat cardiovascular diseases.

2. Anti-tumor-

Jujube contains triterpenoids that can resist cancer and cyclic adenosine monophosphate that can transform cancer cells into normal cells.

3. Anti-allergic-

Take jujube 15-25 pieces and eat them raw or cooked three times a day to treat allergic purpura. This is also because when the human body ingests enough cyclic adenosine monophosphate, the content of cyclic adenosine monophosphate in immune cells will also increase, thus inhibiting the immune response and achieving the anti-allergic effect.

4, detoxification and liver protection-

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 and increase the total protein content in serum. In clinic, jujube can be used as an adjuvant treatment for chronic hepatitis and early cirrhosis.

5, nourishing blood and beauty-

Eat jujube three times a day, each time 10 tablets, which has the effect of nourishing blood and caring skin. Red dates are better with white fungus stew or porridge. This is also because jujube is rich in vitamins, iron and other minerals, which can promote hematopoiesis, prevent anemia and make the skin rosy. In addition, the rich vitamins C, P and cyclic adenosine monophosphate in jujube can promote the metabolism of skin cells, make skin fair and delicate, prevent pigmentation, and achieve the effect of skin care and beauty.

In addition, eating jujube can control and tonify hot flashes, sweating and emotional instability in women during menopause. Also, jujube can enhance human endurance and anti-fatigue. No wonder people in China have always regarded jujube as a good product for invigorating qi and strengthening the body.

6. Enhance human immunity-

Jujube contains a lot of sugars, mainly glucose, but also fructose and sucrose, as well as oligosaccharides, arabinan and galactomannan composed of glucose and fructose. It also contains a lot of vitamins such as vitamin C, riboflavin, thiamine, carotene and nicotinic acid. , has a strong nourishing effect, can improve human immune function and enhance disease resistance.

7. Enhance muscle strength and gain weight-

The experimental mice took jujube soup every day for 3 weeks, and their weight gain was significantly higher than that of the control group. In the swimming test, the swimming time is obviously longer than that of the control group, which shows that jujube can enhance muscle strength and gain weight.

8. Protect the liver-

It was confirmed by experiments that jujube decoction was fed to rabbits with carbon tetrachloride liver injury every day 1 week. Results: Compared with the control group, the total protein and albumin in serum increased significantly, indicating that jujube has protective effect on liver.

9, calm and soothe the nerves-

The flavone-disaccharide A contained in jujube has sedative, hypnotic and hypotensive effects, and the isolated naringin C has central inhibitory effect, that is, reducing spontaneous movement, stimulating reflex and rigidity, so jujube has sedative and tranquilizing effects.

10, anticancer, antimutagenic-

Jujube contains many kinds of three kinds of compounds, among which folic acid and phytic acid have been found to have anticancer activity and inhibitory effect on sarcoma S- 180. Nutrients contained in jujube can enhance human immune function, and play a certain role in preventing cancer and maintaining human organ function.

[Edit this paragraph] 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.

Jujube has been recorded in China characters for more than 3,000 years. The oldest writing about dates probably appeared in the Book of Songs, in which it was said that "dates are peeled in August and rice is harvested in October." In Feng Wei, there is a saying that "the garden has thorns, but it is actually food." In Xiaoya, there is a proverb, "camp, stop at the spine." There is a saying in Qin Feng that "crossing a yellow bird stops at a thorn". Spines refer to jujube trees. Confucian classics describe jujube in more detail. In Zhou Li Tianguan Ren Qian, it is said that "the food is jujube, halogen, peach and hazelnut." According to the book Book of Rites Bride Gifts, dates and chestnuts were presented to the officials in charge of pilgrimage when the ancient princes went on the road to greet them. Use two covered bamboo poles, one for dates and the other for chestnuts. The book "Evening Ceremony" says that on the last night before burial, the varieties of sacrifice should be jujube and candied chestnuts. According to Yili's special sacrificial feeding ceremony and Yili Tourism Department, on the first day of each month, the local governor and the following officials-scholars will go to the temple to offer sacrifices. In addition to the prescribed livestock, there are also dates and chestnuts, and whoever puts dates and chestnuts is particular. Later, The Warring States Policy Yance I recorded that when Su Qin lobbied the six countries, he said to Yan, "There are benefits from Jieshi and Yanmen in the south and dates and chestnuts in the north. Although the people are not cultivated by the fields, jujube chestnuts are enough to consolidate the people. This is called Tianfu. " This shows that jujube was the economic lifeline of Beiyan at that time, and it was one of the bases for emperors to consider the national policy of governing the country and safeguarding the country. For the planting and cultivation of jujube trees, it is recorded in Guangwu Zhi Bo: "In Zhou Wenwang, jujube trees with weak branches are very beautiful, and it is forbidden to take them away and put them in the tree garden." The record in Qi Yaomin's Book is more detailed: "Choose the jujube with good taste, keep the seeds and wait for the jujube leaves to move." "Jujube is strong and does not prey on seedlings." Er Ya Shi Mu is the first book in China to record and explain jujube varieties. The recorded Zhou jujube varieties are Hu jujube, Yao jujube, Bai jujube, Jujube, Qi jujube, Yang Zao jujube, jujube, sweet jujube, bitter jujube and black jujube. By the Yuan Dynasty, there were as many as 72 kinds of jujube varieties recorded in Jujube Shop. During the Qianlong period of Qing Dynasty, there were 87 jujube varieties recorded in the Textual Research of Plant Names.

It can be said that jujube, as a fruit, occupies a very important position in politics, economy and life, from eating fruit in ancient times to planting it later, from eating products for kings in ancient times to greeting gifts from governors, and even to Confucian "three gifts" (funeral, burial and sacrifice) supplies, royal sacrifices in Ming and Qing Dynasties, and then to people's conscious large-scale planting with economic development in later generations.

In thousands of years of production and life practice, jujube trees have forged an indissoluble bond with the people of Zaoxiang. People plant, manage and use jujube, eat jujube in different ways, write jujube, recite jujube, sing jujube and draw jujube. Jujube has gradually entered and integrated into all fields of human social life, and gradually formed jujube culture. Jujube's thought and culture are in perfect harmony with the customs and habits of jujube township, so jujube culture has accumulated in a long history, which is rich and broad and reflects everything in the world from different levels, different meanings and different degrees.

Jujube culture is mainly manifested in all aspects of literature and art, politics, economy, philosophy and social life. Jujube trees are inextricably linked with history, culture, folk customs, wars, policies, ancient and modern celebrities, agriculture, industry, tourism, names, place names and daily life, leaving traces of jujube culture everywhere. Literary works describing or related to jujube are the soul of jujube culture, mainly including legends, stories, novels, poems, essays, plays, idioms, riddles, two-part allegorical sayings, couplets, jokes, tongue twisters, fables, proverbs, paintings, photography, sculptures, songs, instrumental music and so on.

Jujube has been written into poems and songs by poets of past dynasties, and poems praising jujube trees abound. Through these poems, we have traveled through just visiting, and we can fully appreciate the scenery of the former jujube town, feel the vicissitudes of history, and recall the feelings of old friends, sages and contemporary people who love jujube. Li Qi, a poet in the Tang Dynasty, once wrote: "In April, the south wind blows the yellow wheat fields, and the jujube flowers are shaded by tung trees"; Liu Changqing, another famous poet in the Tang Dynasty, said, "Over the mountains, the house is red underground"; Zhang Lei, a poet in the Song Dynasty, wrote that "the jujube garden is cool after the rain, and the white shirt is dressed as a savage"; In the Qing Dynasty, Qingyun County ordered Guishan to chant that "it is the season when the weather is favorable, the buds of jujube trees begin to grow and the wheat begins to fertilize", and another poet also wrote. Su Shi, a great poet in the Song Dynasty, wrote the lyrics "Huanxisha" when he was the magistrate of Xuzhou, expressing his joy at the sight of the new countryside after the rain. Cui Xu, a poet in the Qing Dynasty, once wrote: "In August in Lin Qiu on the riverside, red beads press branches; A healthy woman with a long waist is carrying a basket, and a jujube pole is twenty fists long. " Another poet wrote, "The spring breeze has passed, the autumnal equinox has passed, and the jujube beats every other day;" Three or two families have 100,000 trees, and the top of the field is red. " The scene of jujube harvest in autumn is still like hearing its sound and watching its scenery. In "Land Separation in Qing Dynasty", Zaolin Road is ambiguous, and people walk along the old Xixi River. HongLing's poem "Pear blossoms slowly, warm wind softens sand and sinks horseshoes" describes the beautiful scenery of jujube garden. During the War of Resistance against Japanese Aggression period, Commander Xiao Hua sang in his March on the Border Region of Shandong and Hebei: "We are not afraid that the enemy will raid 200 strongholds crazily and let them camp on the cross-road network three miles away from the enemy. We are not afraid of eating leaves and jujube chaff and always stick to our posts. The harder the environment, the more glorious it is; Comrades, we must go all out and win! " It expresses the strong will and proletarian revolutionary optimism of the soldiers in our military region to carry out the war to the end. When Wang Shuli, then deputy director of the Shandong Provincial Development and Reform Commission, served as secretary of Qingyun County Committee, he wrote Tang Zao Fu and Poems on Jujube with great interest, and issued heartfelt words that "those who want to persuade people to live long will not hesitate to celebrate Qingyun", expressing the infinite admiration and love of all jujube villagers for jujube trees.

[Edit this paragraph] Remarks

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.