What is the introduction of longan?

Longan, commonly known as "Longan", is a rare specialty in the south subtropical region of China. Historically, the south "longan" and the north "ginseng". Longan fruit is rich in nutrition and has been loved by people since ancient times. It is regarded as a precious tonic with obvious nourishing effect.

Brief introduction of scientific name Changguomu. English name longan

Li Shizhen, alias Longan, Yizhilian and Yang Yan (Yunnan dialect), belongs to Sapindaceae, and has the evaluation that Longan is the best resource. According to the analysis, the pulp contains total sugar 12.38-22.55%, reducing sugar 3.85- 10. 16%, total acid 0.096-0. 109% and vitamin c43./kloc-0. Besides fresh food, longan can also be processed, dried, canned and fried. Longan has many functions, such as strengthening yang and benefiting qi, nourishing heart and strengthening spleen, nourishing blood and calming nerves, moistening skin and beautifying face. Can be used for treating anemia, palpitation, insomnia, amnesia, neurasthenia, and physical weakness after illness and postpartum. Modern medical practice has proved that it also has the effects of beauty beauty and prolonging life. Longan is very picky about the production environment, and there are limited places to grow longan in the world. Generally applicable to subtropical areas with mild climate and no severe frost. Among longan varieties, "Shijie" with big meat and small core is the best and the best to sell, and the price is relatively higher than other varieties. Therefore, longan has always been called a good fruit in Lingnan, because it can be eaten fresh and used as medicine, and the market is in short supply.

Edit the characteristics of this paragraph

Evergreen trees, tall trees. Most of them are even pinnate compound leaves, and the leaflets are opposite or alternate; Panicle terminal or axillary; The fruit is spherical and the seeds are black and shiny. The flowering period is from March to April, and the fruiting period is from July to August. Like temperature and avoid freezing, the average annual temperature is 20 ~ 22℃, which is sensitive to low temperature; Generally, the annual average temperature is < 17.5 ~ 18℃, the Leng Yue average temperature is < 10℃, and the absolute low temperature is

In drought, the optimum annual precipitation is1000 ~1600 mm; Strong adaptability to soil. Wild longan is a common tree species in semi-evergreen monsoon forest in hilly plateau of southwest Hainan. The annual average temperature in the distribution area is 24-26℃, and the annual precipitation is 900-1700 mm. Like dry and hot habitats, in the process of annual growth and development, winter and spring (11-April) need the temperature of 18-25℃ and suitable drought, and summer. As a light-loving tree, seedlings are not tolerant of excessive shading, and mature trees need plenty of sunshine. Natural regeneration is good, belonging to deep-rooted tree species, which can take root and grow in arid and barren soil. Stubs with strong germination ability can germinate and renew quickly when they are cut or burned. Natural growth is slow. The 83-year-old tree is only 20.2 meters high and DBH is 27 cm. It blooms in March-April and matures in July-August. Distribution: Longan is produced in the south and southwest of China. At present, longan is mainly distributed in Guangxi, Guangdong, Fujian, Taiwan Province and other provinces (regions). In addition, Hainan, Sichuan, Yunnan and Guizhou provinces also have small-scale cultivation. Longan is planted in Thailand, Vietnam, Laos, Myanmar, Sri Lanka, India, Philippines, Malaysia, Indonesia, Madagascar, Queensland, Australia, Hawaii and Florida.

Edit the function of this paragraph

Longan is rich in nutrition and is a precious nutritional fortifier. Besides being eaten raw, fruits can also be made into canned food, wine, sauce, sauce and so on. , can also be processed into dried meat in longan. In addition, the leaves, flowers, roots and cores of longan can be used as medicine. Longan tree has hard wood and delicate texture. It is the raw material for making high-grade furniture and can be carved into various exquisite handicrafts. Longan is an important honey source plant, and longan honey is the best in honey.

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Picking in July and August when the fruit is ripe and yellow-brown. The life span of seeds is very short. Remove the aril after shelling, and sow immediately after washing with clear water. When the height of seedlings is 8- 10 cm, the seedlings are planted in separate beds or moved into nutrient bags in spring rain or autumn, and the seedling age is six months or 1 year. The forest land is selected in the hilly platform below 500 meters above sea level. Cultivated varieties must be propagated by grafting.

Edit this paragraph protection

Wild longan is a valuable germplasm resource for longan breeding. Wood has a fine and firm structure, is extremely resistant to corrosion and moth, and is a solid industrial material, which is suitable for vehicles, ships, bridges, water conservancy, furniture and other materials. Fruit is edible. It is suggested that semi-evergreen monsoon forest, which is undamaged and widely distributed, should be designated as wild longan nature reserve, and seed orchards should be established in nearby state-owned forest farms to provide germplasm resources for cultivation and breeding.

Edit this paragraph reputation

Longan is a fruit in southern China, mainly produced in Guangdong and Guangxi. Together with litchi, banana and pineapple, they are the four precious fruits in southern China. Shu Qi; Hsu Kei、Hsu Chi

One or two feet high, slightly smaller leaves, white flowers, bearing fruit in early autumn. In fact, it was a heavy fall and its shape was round and rolling. For example, the projectile is slightly smaller than litchi, and the skin is green and brown. The skin is crystal white, and the red and black stones in the meat are faintly visible, which is very similar to the eyes, hence the name "longan". Quanzhou is one of the main longan producing areas in China, which has been rich in longan since ancient times. Quanzhou people generally call longan fresh fruit longan, which is a roasted longan. Merchants often refer to both as "longan". The best longan at present, Xinghua Longan: Putian City is located on the coast of the East China Sea and the west bank of the Taiwan Strait. Because of its unique geographical and climatic resources, it is extremely suitable for planting subtropical precious fruit trees such as longan. Among them, longan, loquat, litchi and honey pomelo are four traditional famous fruits in Putian, which have always been famous at home and abroad, especially longan, and are known as "Xinghua Longan is the best in the world". Putian longan has bred many varieties and excellent quality because of its unique cultivation area. There are more than 80 varieties in the city, the largest in the country. Putian is located in the northern edge of China's longan planting area, with abundant sunshine, moderate rainfall and large temperature difference between day and night, which is conducive to the accumulation of soluble solids (mainly sugar). Therefore, the flavor of Xinghua longan is sweeter than that of other producing areas, and many excellent varieties have been cultivated. Putian longan is characterized by large fruit, high yield and high soluble solid content (that is, high sugar content). "Shuinan 1" and "Youyi 106" both reached the national first-class longan standard, leading in China. "Songfengben" and "beginning of winter Ben" are popular because of their late maturity. The main varieties are Wulongling, Youguanben, Shuinan 1, Songfengben, beginning of winter Ben, etc. They mature from mid-August to mid-October, with an average fruit weight of 13- 19g and a yield of 65-72%.

Edit this paragraph history

Longan ripens in August of the lunar calendar. Because August was called "Gui" in ancient times and longan was round, it was also called longan.

Longan originated in the south of China, and its cultivation history can be traced back to the Han Dynasty more than 2,000 years ago. The literature about longan was first recorded in the biography of South Xiongnu in the later Han Dynasty: "Han Nai sent a single envoy to make admirers send ... oranges, longan and lychees." Since then, it has been recorded in many ancient books. For example, Jia Sixie's Book of Qi Yao Min in the Northern Wei Dynasty (386-534) said: "Longan is a puzzle, and it is also better than eyes." Longan was listed as an important tribute in ancient times. Wei Wendi Yuanbaoju (535-55 1) of the Northern Dynasties and the Western Wei Dynasty wrote to his minister: "The precious fruits in the south include longan and litchi, which make you pay tribute when you are old." Longan was widely planted in Quanzhou in Song Dynasty. In the Northern Song Dynasty, Su Song, a native of Tongan County, Quanzhou, recorded in Compendium of Materia Medica (106 1): "Longan is produced in Nanhai Valley, and litchi can be found everywhere in Fujian, Guangzhou and Sichuan today." Wang Zan Guiyuan, the secretariat of Quanzhou in the Southern Song Dynasty, said: "There is no light red sweeping the floor, and thousands of trees are whistling. Just like a puzzle that is not a medicine, the taste is really servile than lychee. " Huang Ming Zhao Zhong's "Eight Min Tong Zhi" describes: "The longan tree is like a plum branch, but its leaves are small and its skin is yellow-brown. Longan is ripe as soon as the litchi branch passes, so southerners call it litchi slave. There are all counties in Quanzhou, and counties (now Licheng District and Fengze District) are especially prosperous. " In "Shu Min" written by Quanzhou Ren He in the Ming Dynasty, "there are lychee longan in the garden, and the trip to the world is dried." Quanzhou longan has a long history of grafting propagation. Grafting propagation of longan is recorded in Bo (1597) and Deng Daoxie (1628). In the early Qing Dynasty, Zhou Lianggong's Notes on Fujian (1666— 1668) and Guo Baicang's Records of Fujian's Production are different in types and are still in use today. The old method is to fill the soil with hanging bowls. It was not until the18th century that longan spread from China to India and South Asia. There are many varieties of longan in Zhangzhou with different flavors. There are more than 50 famous varieties such as Puming Anben and Hon Hai Er Benben. Longan, the most acclaimed pioneer, 1993 Gold Award of China Agricultural Fair. "Dongbi" longan originated from the corner of the original Dongbi Temple next to the East Tower of Kaiyuan Temple in Quanzhou, hence the name. Her mother was planted by monks in Kaiyuan Temple during the Wanli period of the Ming Dynasty (1573- 1620) and died in War of Resistance against Japanese Aggression for more than 300 years. There is an ancient longan tree in Chengtian Temple in Quanzhou, which has a history of more than 200 years. It is the oldest tree in the eyes of the existing "Dongbi" dragon. Today, "Dongbi" longan is widely propagated in Quanzhou and other longan producing areas in the province. Legend has it that in the early days of Xianyou, a monk took "East Wall" longan seedlings from Kaiyuan Temple in Quanzhou and planted them in Xianyou. Now, 20,000 adult trees have been cultivated and named as "Quanzhou Ben", but the quality is not as good as the original "Dongbi" longan. "Dongbi" longan is of good quality. Its skin has a pale yellow tiger pattern, which is called "flower shell" by Ren Quan, which is the most remarkable difference between its appearance and other longan varieties. "East wall" longan, also known as "candied melon honey", has pale white flesh, transparent if frozen, thick and tender, sweet and delicious, with the characteristics of "paper is not wet, dust can not afford sand", which is called the treasure of the fruit. There is also a kind of "lucky eye", formerly known as "tiger eye". "Quanzhou Prefecture Records" records that "a great man is famous for his tiger eyes". The sound of "tiger" and "blessing" in spring language is similar, so "blessing eye" is used instead of "tiger eye" to take its auspicious and beautiful meaning. Yanfu is the main cultivated variety in Quanzhou, which has been cultivated for more than 800 years. He has won the International Paris Tourism Food Gold Award and the China Agricultural Fair Quality Award. In recent years, longan has been planted in all producing areas in the province, which is the largest variety planted in our province. It is said that the big longan planted in Taiwan Province is also called "Yan Fu" by local compatriots.

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It is said that a long time ago, there was a dragon in Fujian. Every August, when the tide comes, it sets off waves, destroys crops, destroys houses and kills countless people and animals. People around had to flee their homes and hide in caves. There is a local boy with strong martial arts, named longan. When he saw the dragon making waves, he was determined to kill the people and fight the dragon. In August, the tide came, and he prepared good wine and pork and mutton and put them together. When the dragon came ashore, he saw the pork and mutton drooling and ate them up in a few mouthfuls. Because pork and mutton were soaked in a lot of wine, they lay motionless on the ground before the dragon went away. Just then, longan raised the steel knife and stabbed the dragon's left eye. Longan was poked out and the dragon rolled back and forth in pain. When he was about to escape, longan caught the dragon horn and rode on it. When the dragon tried to get rid of the longan, the longan stabbed the dragon in the right eye with a steel knife. The dragon lost his eyes and screamed in pain. After a fight, the dragon bled to death. Longan died because he was seriously injured in the fight. As a result, this place has grown a kind of fruit called "longan" or "longan". On the other hand, the ancients compared longan, a spherical fruit, to various eyes. The big longan is called longan, the middle one is called tiger eye, and the smallest one is called ghost eye, but modern people call longan or longan.

Edit the making method of dried longan in this paragraph.

① Material selection: Choose fruits with complete and mature fruit grains. ② Granulation: cut the fruit from the ear, with the length of the fruit stalk remaining 1.5mm, and remove the broken fruit. (3) Soaking: put the fruit in a bamboo basket, or even soak the bamboo basket in clean water for 5- 10 minutes to wash away the dust. (4) Over-shaking: pour the soaked fruit into a special shaking cage, each cage is about 35 kilograms, sprinkle 250 grams of clean fine sand in the shaking cage, hang the shaking cage on a special wooden frame or waist-high branches, and shake it quickly for 6-8 minutes, so that the fruit keeps rolling and rubbing in the cage until the shell turns brown and dry. Shaking can make the shell thin and smooth, which is convenient for drying, but it should not be ground too thin, otherwise the shell will sag easily when baking. ⑤ Initial baking: Spread the fruit evenly on the baking oven. Generally, the thickness of the front edge of the furnace is 17 cm and the thickness of the rear edge is 1 1 cm. Longan can be roasted for 300-500 kg each time, and charcoal or dry branches can be used as fuel. After paving, it can be turned every 8 hours. Bake in three layers, that is, put the upper, middle and lower layers of longan into the bamboo raft, then pour the longan in the upper layer into the baking mat first, then into the middle layer and finally into the lower layer. After 8 hours, turn it over the second time in the same way as the first time. After baking for 3-5 hours, it can be baked, cooled and stored in a basket. ⑥ Re-drying: After 2-3 days of initial drying, the water in the core and pulp gradually spread outward, and the water on the surface of pulp is higher than that just after drying, so it needs to be dried again. When baking again, use slow fire for about 12 hour, and turn the fruit several times in the middle. When the fruit is pressed with your fingers and no juice flows out, and the core turns chestnut brown after cutting, it can be taken out of the oven, and it needs to dissipate heat for 24 hours after taking out. ⑦ Cut the stem of longan with scissors. (8) grading: screening and grading the dried longan seeds according to their sizes. Pet-name ruby packing: usually packed in adhesive cartons with good sealing performance, lined with plastic film. Shake while loading to enrich the loading capacity. Each box is about 30 kilograms. Finally, the plastic bag is sealed, nailed and sealed.

Edit the medicinal value of this paragraph.

Longan is longan (longan, round meat). Different from litchi, which belongs to damp heat, longan can be used as medicine, which has many functions such as strengthening yang and benefiting qi, nourishing heart and strengthening spleen, nourishing blood and calming nerves, moistening skin and beautifying face, and can be used to treat anemia, palpitation, insomnia, amnesia, neurasthenia, physical weakness after illness and postpartum.

Longan leaf

The source of longan leaves is the leaves or buds of longan, a plant of Sapindaceae. The efficacy of purging fire and detoxicating mainly treats colds, malaria, furuncle and hemorrhoids. Sexual taste is sweet, light and flat. ① Essentials of Raw Medicinal Materials: sweet in taste and warm in nature. ② Manual of Chinese herbal medicines commonly used in Guangzhou army: light and plain. Usage and dosage: 6-9g, decocted. The collection and storage of medicinal materials can be collected all year round. Latin name longan. )Steud。 Textual research comes from the "Illustration of Materia Medica in Southern Yunnan". Chinese medicine leaves contain sitosterol, stigmasterol, stigmasterol glucoside, epigallocatechin gallate, 16- alkanol, quercetin and quercitrin.

longan aril

dried longan

The English name of longan is dry longan Prlp, which comes from the aril of longan, a plant of Sapindaceae. Work benefits the heart and spleen, tonifies qi and blood, and calms the nerves. Indications are fatigue, insomnia, forgetfulness and fright. Sweet and moist in nature. 1 classic: "Sweet and flat." 2 "No recording": "Non-toxic." 3 "Tang Materia Medica": "Sweet and sour." 4 "Materia Medica": "Sweet and warm." Entering the heart and spleen meridian. (1) Shu Shu in Materia Medica: "Feet into the Taiyin, hands are less cloudy." ② Drug meaning: "Entering the liver, heart and spleen." 3 "Continuation of Materia Medica": "Into the heart and kidney." Oral administration and dosage: decocted, 2 ~ 5 yuan; Boil ointment, soak in wine or take pills. If there is phlegm-fire and dampness stagnation, medication should be avoided. 1 Materia Medica: "Ganrun, fear of qi stagnation, such as stomach heat with phlegm and fire; The lungs are affected by wind and heat, and it is not appropriate to cough up blood. " ② "Drug Meaning": "Gan can help fire, but it can also cause pain. If the heart and lungs are full of fire, those who are full of qi stagnation should avoid it. " The drug is compatible with Ziziphus jujuba seed, nourishing the heart and strengthening the spleen; Use Acorus gramineus to nourish the heart and wake up; Make peace with Bai Renzi; Use ginger to strengthen the stomach and benefit the stomach, nourish blood and benefit the stomach; Have duck gall to drive away evil spirits and strengthen the body; With lotus seed meat and Euryale ferox, it can replenish qi and blood, strengthen the spleen and nourish the heart. Other names are Yizhi (Benjing), Honey Spleen (Compendium) and Longan Dry (Quanzhou Materia Medica). It was first seen in Shennong Materia Medica Classic and listed as the top grade. The fruit of this product is spherical and looks like longan. Also known as: Lombok (Shudu Fu), Bimu (Wupu Herb), Litchi Seed (Southern Vegetation), Embroidered Wood Bundle, Sichuan Marble (Qing), Yalichi (Kaibao Herb), Mudan, Yan Dan and Mo Sibr. It is best that the sliced meat is thick, brown in color, sweet and clean. Medicinal parts The roots or bark (longan root), bark (longan eyelid), leaves or buds (longan leaf), flowers (longan seed), bark (longan shell) and seeds (longan seed) of this plant are also used for medicine, and each of them has detailed articles. Animal and plant resources are distributed in Fujian, Taiwan Province, Guangdong, Guangxi, Yunnan, Guizhou and Sichuan. Medicinal materials are mainly produced in Guangxi, Fujian, Guangdong, Sichuan and Taiwan Province provinces. Collection and storage of medicinal materials. Pick the fruit when it is ripe in July and June. Longan. Steud, the original plant of longan, a famous Latin medicine. Processing method: drying or drying in the sun, peeling off the peel and taking its aril. Or boil the fruit in boiling water for 10 minute, take it out and spread it out to make the water lose, bake it for another day and night, then peel off the aril and dry it in the sun. Textual research from Kaibao materia medica; ① "Kaibao Materia Medica": "The classic says that those who solve puzzles are sweet in taste and belong to the spleen, which can solve puzzles, not solve puzzles today." (2) Outline: "The longan is round, and Bielu is different from Su Gongbi's betel nut. Its woody nature is cold-resistant, and it can only be picked after thousands of years, and it can be dried into flowers. The man who did it was called longan brocade. According to Fan Chengda's Gui Hai Zhi, there is a mountain with longan, which is wide in color, and the meat is like longan and ripe in summer. Is this also a wild longan? " The identification of crude drug showed that the crude drug was an irregular decoction piece with longitudinal cracks from top to bottom, with a length of about 1.5cm, a width of 1.5 ~ 3.5cm and a thickness of less than1mm. The surface is yellowish brown and translucent; The side near the peel is uneven and rough; The side near the seed coat is bright with longitudinal folds. The quality is elastic, slightly sticky, and often blocky. It is sweet and fragrant, which is very special. It is best to have large slices, thick meat, soft texture, brown color, translucent and sweet taste. This product is preferably thick, soft, brown, translucent and sweet. Chinese medicine pulp (dry) contains 0.85% water, 79.77% soluble, 9.39% insoluble/kloc-0 and 3.36% ash. Soluble substances include glucose 24.9 1%, sucrose 0.22%, acids (calculated by tartaric acid) 1.26%, nitrogen-containing substances (including adenine and choline) 6.309%, etc. Others contain 5.6% protein and 0.5% fat. The aril contains glucose 26.9 1%, tartaric acid 1.26% and a small amount of sucrose. It also contains vitamins B 1, B2, phosphorus and C.

Longan shell

The source of longan shell spelling is the pericarp of longan, a plant of Sapindaceae. Efficacy and expelling wind are mainly used to treat dizziness, deafness and vertigo. The taste of nature returns to "Herbal Rejuvenation": "Sweet, warm and nontoxic." Continuation of Materia Medica: "Entering Lung Meridian." Oral administration and dosage: decocted, 2 ~ 3 yuan. External use: dry-sprinkle or smear calcined powder. Latin name longan. )Steud。 Textual research comes from "The Illustration of Materia Medica in Southern Yunnan"; "Outline": "Longan shell is yellow, Fujian people are afraid that it will be easy to eat, and it is easy to be pleasing to the eye when mixed with turmeric powder. The shell used for medicine must be washed off. "

Longguangxuan

The spelling dragon's eye is from the flower of longan, a plant of Sapindaceae. The treatment of stranguria is mainly based on warming kidney and diuresis. Sexual taste belongs to Quanzhou materia medica: "it tastes astringent." Usage and dosage: 30g, decocted. Latin name longan. )Steud。 Textual research comes from Quanzhou Materia Medica.

Longyanzi

Phonetic longan and seeds from longan of Sapindaceae. Efficacy of stopping bleeding and relieving pain, regulating qi and eliminating dampness. Indications: traumatic hemorrhage, hernia, lymphoid tuberculosis, scabies and wet sores. Sexual taste belongs to Quanzhou materia medica: "it tastes astringent." External usage and dosage of three meridians of liver, spleen and bladder: calcined, ground, applied or dried. Oral administration: decoction, 1 ~ 3 yuan; Let's grind it. The Latin name of longan nucleolus (outline) is longan (Lour. )Steud。 Textual research comes from the "Illustration of Materia Medica in Southern Yunnan"; "Outline": "Zhang Jin Zhai Yun, longan nucleolus, who has young children, is necessary. If you encounter a face bump or a gold blade injury, you can apply it to relieve pain, stop bleeding and promote granulation, leaving no trace after healing; If you hurt your hair, you will grow more hair. If you hurt your hair, you will not grow hair. " The chemical components of traditional Chinese medicine are saponin and fat.

Edit the dyeing operation in this paragraph.

"Illustration 2 of Primary Color Medicinal Plants in Taiwan Province Province" records that there is "quercetin" in the leaves of longan, so we judged that this plant is probably dyed, so we tried it, and as expected, we successfully found its yellow-brown color. Longan leaves and fruits are densely planted on the branches. When longan was picked, there were still many green leaves on the branchlets. After picking the green leaves, pile them under the orchard tree. In recent years, when we begin to study plant dyeing, we will naturally think about whether longan branches and leaves have dyeing effect. After trial dyeing, it is found that the dyeing effect is good and it is worth popularizing. Dye use parts: branches and leaves, dry wood

Edit this common sense of life

1。 When selecting longan, it should be noted that when peeling, the pulp should be transparent without film and juice overflow, and the pedicle should not be stained with water, otherwise it will go bad easily. 2。 In theory, longan has the function of preventing miscarriage, but most women suffer from yin deficiency and blood deficiency after pregnancy. Chinese medicine advocates that the fetus is cold first and the longan is hot. Therefore, in order to avoid miscarriage, pregnant women should eat carefully. 3。 The identification of crazy fruit, also known as Longli, is poisonous, without the scaly shell of longan, and the pulp is sticky, not easy to peel off and bitter and sweet.

Edit the dietotherapy value of this paragraph

The aril (pulp) of longan is a tree plant of Sapindaceae. Longan is also called Longmu, Asian litchi and Longan. More than 30 varieties such as Tiger Eye, Shek Kip Longan, etc. Fujian, Taiwan Province, Guangdong, Guangxi, Sichuan, Guizhou and Yunnan are all distributed. Harvest the fruit when it is ripe in autumn.

Peel off the peel and use it fresh, or dry the fruit and peel off the aril for later use. [Attribute] Sweet in taste and flat in nature. It can nourish the spleen and stomach, nourish the heart and improve intelligence, nourish blood and soothe the nerves. [Reference] Contains glucose, sucrose, protein, fat, vitamins B and C, phosphorus, calcium, iron, tartaric acid, adenine and choline. 【 Usage 】 Used for spleen and stomach weakness, loss of appetite, or deficiency of qi and blood, physical weakness; Deficiency of heart and spleen blood, insomnia, forgetfulness, fright and anxiety. [Usage] Raw food, decoction, ointment or wine soaked clothes. 【 Precautions 】 Stagnation of phlegm-fire and cough with excessive phlegm are not suitable. [Attachment] 1, substitute ginseng paste: 30g longan meat, put it in a bowl, add a little sugar, and steam it together into a thick paste. Take it twice with boiling water. Originated from the "Resting Diet Spectrum", it is said that it can "greatly tonify qi and blood and suppress kidney qi" and is used for "the elderly, the weak and the sick", especially for pregnant women when they are in clinic. 2. Heart and spleen nourishing soup: longan meat 15g, lotus seed 30g, jujube 10. Add a proper amount of water and fry it. This prescription is mainly longan meat and lotus seeds, which strengthen the spleen, nourish the heart and soothe the nerves; Jujube has a similar effect. Used for deficiency of both heart and spleen, anorexia, palpitation and spontaneous sweating.

Edit the quality identification of longan in this paragraph.

(1) Longan is characterized by large particle, thick meat, round symmetry, white and soft meat, transparency or translucency, and sweet taste. (2) Pinch the fruit with three fingers. If the shell is hard, it means that the fruit is raw and immature; If you feel soft and elastic, it is a mature feature; If it is soft and inelastic, it is overcooked and will soon go bad. (3) When longan is peeled by hand, the meat core is easy to separate, and the meat is soft and not sticky. If the meat heart is not easy to separate, the meat is hard or reddish, and the quality is poor (4) if there are white spots on the shell surface or pedicle end of longan, it means that the meat has begun to mold; Several white moldy flowers appeared on the shell, and the meat was slightly moldy; White mold has many flowers and heavy meat, so it is inedible. (5) pour longan on the table, so that the longan has high sugar content, and the shell, meat and core are connected together, so it is not easy to roll on the plane; Poor quality rolls easily.