Efficacy and function of rhubarb, side effects of rhubarb.
This article lists: 1, the efficacy of rhubarb, 2, what is the efficacy of rhubarb? How to identify? 3. What is the function of rhubarb? 4. What is the function and efficacy of rhubarb? Efficacy of rhubarb
Rhubarb is a commonly used Chinese medicine, also known as general, Sichuan army and brocade. It is the root and rhizome of Polygonaceae perennial herb rhubarb, rhubarb Xixia or medicinal rhubarb.
Rhubarb is cold and bitter. It can be divided into spleen meridian, stomach meridian, large intestine meridian, liver meridian and heart meridian, and has the effects of purging heat and fire, cooling blood and detoxifying, promoting blood circulation and removing blood stasis.
Traditionally, rhubarb is often used to treat constipation due to excess heat, abdominal pain due to stagnation, diarrhea, damp-heat jaundice, vomiting due to blood heat, sore throat, carbuncle and furuncle, amenorrhea due to blood stasis, traumatic injury, fire and water burns, upper gastrointestinal bleeding, etc.
Shennong Herbal Classic says:
Rhubarb "treats blood stasis, blood stasis, cold and heat, abdominal pain, staying in the house, clearing the stomach, bringing forth the old and bringing forth the new, giving birth to Shui Gu, regulating Chinese food and calming the five internal organs."
Although rhubarb is known as the "general" of attacking diarrhea, it is widely used in practice.
In the existing medical records of honest officials, the dosage of rhubarb ranks tenth among all drugs.
When Emperor Puyi of Xuan Tong was 6 years old, he suffered from nausea, abdominal pain and fever in his palms due to loss of appetite.
The doctor treated him with cooked rhubarb and other drugs and soon cured him.
Empress Dowager Cixi, who is over 70 years old, suffered from heat accumulation in the liver and stomach and recovered after taking drugs such as rhubarb made from wine.
In addition, many emperors in the Qing Dynasty often used rhubarb to make tea to prevent and treat diseases.
This is because rhubarb has purgative effect and astringent and antidiarrheal effect.
Although it can increase the frequency of defecation, it will not lead to dehydration, nor will it affect the function of gastrointestinal tract because of bitter cold.
Moreover, if rhubarb is decocted for a long time, its purgative effect can be reduced.
From the results of modern pharmacological research, rhubarb has the functions of convergence, hemostasis, spasmolysis, cholagogic, antibacterial, antiviral, antiparasitic, antitumor and blood pressure lowering.
According to these effects of rhubarb, people mainly use it to treat the following diseases in clinic:
Can be used for treating ascaris intestinal obstruction;
20g of rhubarb, 0g of pepper10g and 0g of sesame oil10g are taken.
First, put pepper in sesame oil and heat it, then add rhubarb, then leave the fire, cool it and remove the residue, and take it twice.
The patient begins to exhaust about 3 hours after taking the medicine, and then the abdominal pain will be relieved. Continuous administration can make ascaris excrete with feces.
Can be used for treating paralytic intestinal obstruction;
Take rhubarb, mirabilite 10g, magnolia bark, bitter orange 6g and borneol 3g.
Grind the medicine * * into fine powder, mix it into paste with Huoxiang Zhengqi water, apply it to the navel, cover it with gauze, fix it with adhesive tape, and then apply it with hot water bottle.
Change the dressing once a day.
Can be used for treating toxic enteroparalysis in children.
Raw rhubarb is soaked in 50- 100 ml of boiling water, and the children are enema with the immersion liquid dried to about 37 degrees Celsius (keep 10-20 minutes), 2-3 times a day.
The dosage of rhubarb can be determined according to the patient's age: children under 0 years old 5-10g; 1"for 3-year-old children10 ~15g; Children aged 3-6 years use15-20g; Children aged 6- 12 use 20-30g.
Can be used for treating intestinal carbuncle;
Take 30 grams of rhubarb, 30 grams of mirabilite, 20 grams of garlic, 50 grams of fresh Patrinia herb and 40 grams of fresh Herba Violae.
Mash the medicine * * * into mud and apply it externally to Macbeth point (appendix), changing the medicine once a day.
Can be used for treating flatulence;
50 grams of rhubarb is ground into fine powder, mixed with vinegar into paste, and externally applied to Yongquan point on both sides for 2 hours each time, 2-3 times a day if necessary.
Patients usually have intestinal peristalsis and exhaust after one hour of application.
Can be used for treating carbuncle, swelling and furuncle;
Take rhubarb powder 15g (spina gleditsiae powder 10g can be added for local pus), mix with egg white and apply externally to the affected area, and change the dressing once a day.
Can be used for treating scald;
Take 30 grams of raw rhubarb powder, mix the yolk with rhubarb powder after refining, apply it to the affected area, and change the dressing once a day.
Can be used for treating vasculitis;
Take 60 grams of rhubarb, 60 grams of mirabilite, 30 grams of frankincense, 30 grams of myrrh, 20 grams of nidus vespae, 20 grams of speranskia tuberculata and 30 grams of Herba Violae.
Grind the medicine into fine powder, mix it with lard and apply it to the affected area once in the morning and once in the evening.
Can treat burns:
Soak rhubarb in 95% alcohol (according to the ratio of 1: 4), filter the immersion liquid after half a month, put it into a sterile sprayer and spray it on the burn wound 4-5 times a day.
At present, Japanese scholars have isolated more than 20 components of/kloc-0 from rhubarb.
Australians have begun to treat obesity with rhubarb and Sanqi tablets; Belgians add rhubarb to coffee to lose weight; Germany, Switzerland and so on. Rhubarb is also used as an auxiliary material for sweets and biscuits.
The international symposium on rhubarb has been held twice.
Therefore, we have reason to believe that with the deepening of people's research and development of rhubarb, this famous "general" of rhubarb will surely show its magic power.
What is the effect of rhubarb? How to identify? Rhubarb in China
Also known as: General, Sichuan Army
Bitter in taste and bitter in nature, cold in nature; Spleen, stomach, large intestine, liver and heart meridian.
Basic medicine for treating stagnation constipation
Rhubarb has many functions such as purgation, clearing heat and purging fire, stopping bleeding, detoxicating, promoting blood circulation and removing blood stasis. It is an important drug for the treatment of constipation, and it is famous for its ability to attack diarrhea and has been called "general" since ancient times.
According to Shennong's Classic of Materia Medica, rhubarb "cures blood stasis, cold and heat, breaks abdominal pain, clears stomach, brings forth the old and brings forth the new, promotes Shui Gu, regulates Chinese food and smoothes the five internal organs."
Modern pharmacological research shows that rhubarb also has the functions of cholagogic, antibacterial, lipid-lowering and urea nitrogen reduction.
Dahuang archives
Rheum palmatum and Rheum tanguticum are mainly produced in Qinghai, Gansu and other places, while Rhubarb is mainly produced in Sichuan.
Rhubarb belongs to Polygonaceae, and the dried roots and rhizomes of Rhubarb, Rhubarb or Rhubarb can be used as Chinese herbal medicines.
Generally, the stems and leaves are dug up, dried, dried or dried before withering in late autumn or sprouting in the next spring.
Modern research has found that rhubarb mainly contains sennoside, rhein, emodin, aloe-emodin, emodin methyl ether, chrysophanol, tannin, potassium, calcium and magnesium.
Efficacy indication
Efficacy: diarrhea, clearing heat and purging fire, stopping bleeding and detoxifying, promoting blood circulation and removing blood stasis.
Indications: 1. Used for constipation caused by coal accumulation and heat accumulation in stool.
2. Used for red eyes, sore throat, swollen gums, etc.
3. Used for hematemesis and hemoptysis caused by blood heat rash.
4. Used for postpartum abdominal pain, menstrual disorder, traumatic injury and other symptoms caused by blood stasis.
5. External application is used for heat toxic sores, boils and burns.
Comparison of similar drugs
Authentic rhubarb has cylindrical, conical or irregular roots, brown peel, solid texture except yellowish brown to reddish brown on the surface of the peel, reddish brown in cross section, developed wood, radial texture, wide pulp in the cross section of the rhizome, visible stars, annular or scattered arrangement, fragrant smell, bitter and slightly astringent taste, and sandy when chewing.
Pseudorhubarb, whose roots are cylindrical or longitudinally cut into irregular strips, the skin is brown and mostly scraped off, the surface is yellow-brown, the cross section is orange-red to yellow-brown, the root wood is broad, the rays are thin and reddish-brown, the cross section of the rhizome is starless, the smell is not fragrant and turbid, and the taste is astringent first and then bitter.
Matters needing attention
1. rhubarb should be fried later or soaked in boiling water, otherwise the efficacy will be weakened.
2. After taking rhubarb, its pigment will be discharged with urine or sweat glands, so urine and sweat can appear yellow.
3. It is forbidden for women before and after delivery, during pregnancy, menstrual period and lactation.
4. People with spleen and stomach weakness, qi and blood weakness, no blood stasis and no congestion should not use it.
5. Use with caution those who become purulent after vulvar gangrene or carbuncle swelling and collapse, and have insufficient vital qi.
What does rhubarb do? Rhubarb is the dried root and rhizome of Polygonaceae plants, such as Rhubarb, Rhubarb Tangut and Rhubarb, also known as Sheng Jun, General and Sichuan Army.
Bitter nature and cold nature.
Has that effect of purging heat, reduce stagnation, removing blood stasis and detoxicating.
Can be used for constipation due to excess heat, abdominal pain due to stagnation, damp-heat jaundice, acute appendicitis, incomplete intestinal obstruction, etc.
Location: Qinghai, Gansu, Sichuan, Shaanxi and other provinces.
Rheum tanguticum, also known as Rheum calyx.
Tall perennial herb, about 2 meters high, similar to previous species.
Stems glabrous or hairy.
Rhizome leaves are slightly round or broadly heart-shaped, with a diameter of 40-70 cm, 3-7 palmately parted, long and narrow lobes, often feathery and shallow, with a sharp apex and a heart-shaped base; Cauline leaves are smaller and stems are shorter.
Panicle is large, mostly dark purple when young, but also green and white, with tight branches and straight branchlets; Flowers are small and have long pedicels; Perianth 6, 2 rounds; Stamens are generally 9; Ovary triangular, style 3.
Achenes are triangular, winged, rounded or slightly concave at the top and heart-shaped at the base.
The flowering period is from June to July.
The fruiting period is from July to September.
Born in a humid place on the edge of a mountain forest.
Distributed in Qinghai, Gansu and Sichuan.
Tibet and other places.
Medicinal rhubarb, also known as Nandahuang.
Tall perennial herb, about 1.5m high.
Stems erect, sparsely pubescent, with dense nodes.
Long petiole with roots, round to ovoid leaves, 40-70 cm in diameter, palmately lobed, or only notched and coarsely serrated, with acute apex and heart-shaped base, usually 5 main veins, basal, hairless above, or sparse papillae near the state veins, with hairs below, mostly distributed in veins and leaf margins; Cauline leaves are small and stems are short; Leaf sheaths are solitary, sparsely short-haired, and cracked at the base.
Panicle, large, many branches, small flowers, 3 ~ 4 mm in diameter, 4 ~ 10 flower cluster; Perianth 6, light green or yellowish white, 2-whorled, inner whorl oblong, about 2 mm long, apex rounded, edge irregular, outer whorl slightly shorter; Stamens 9, not exserted; Ovary triangular, flowers on 3.
Achene is triangular, winged, about 8 ~ 10 mm long and 6 ~ 9 mm wide, with a concave top and red color.
The flowering and fruiting period is June-July.
Most of them grow in mountainous areas with good drainage.
Distributed in Hubei, Sichuan, Yunnan, Guizhou and other places.
The stems or seedlings of the above plants are collectively called rhubarb stems and can also be used as medicine.
morphological character
Rhubarb is a perennial herb of Polygonaceae. Its roots are fleshy, lignified, fork-free, radish-shaped, and some have several forks, showing the shape of a bull's head.
The stem is erect, unbranched, 90- 120 cm high, hollow, with longitudinal grooves and pubescence.
Rhizome leaves are large, suborbicular and palmately divided.
Inflorescence conical, closely branched, branchlets straight, several clustered at each node.
Flowers are small, clustered, green and white or deep purple.
Achene is red, triangular, rectangular, with 3 edges, rounded or slightly concave at the top and heart-shaped at the base.
Growth habit
Sexual preference for cold climate, cold tolerance and avoidance of high temperature.
Wild in the mountainous areas with an altitude of about 2000 meters in the northwest and southwest of China; The family is planted in the area above 1400 meters.
Climatic conditions: the lowest temperature in winter should be above-10℃, the temperature in summer should not exceed 30℃, the frost-free period is 50- 180 days, and the annual rainfall is 55-1000 mm.
The requirements for soil are strict. Generally, it is best to use soil or sandy soil with deep soil layer, rich humus and good drainage.
Planting in sticky and acidic soil will cause poor growth of rhizomes and affect yield.
Plots with poor drainage and high groundwater level are not suitable for planting.
Continuous cropping of rhubarb should be avoided and replanted after 4-5 years. It is suitable to rotate with leguminous and Gramineae crops, or take Codonopsis pilosula and Coptis chinensis as the previous crops.
Rhubarb seeds germinate easily. At the temperature of 15-25℃, the germination rate can reach above 85%, and the seed life is l-2 years.
Planting techniques of rhubarb
1. Land selection and preparation
Rhubarb is a deep-rooted plant, the taproot can penetrate 30-45 cm into the soil layer, so it is better to choose loose and well-drained sandy sloping land. After harvesting the previous crops such as corn and potato, combine deep ploughing and apply sufficient base fertilizer, and apply 4,000-5,000 kg of manure per mu. In poor soil, the amount of fertilizer can be increased.
2. Breeding method
Mainly by seeds, but also by buds.
Seed propagation is divided into direct seeding and seedling transplanting.
(1) The live broadcast is conducted in early autumn or early spring.
For live broadcast, the row spacing is 70cm×60cm and the hole depth is about 3 cm. Sow 5-6 seeds in each hole and cover it with soil for about 2 cm.
The amount of seeds used per mu is 2-2.5 kg.
(2) Seeding and transplanting In order to save seeds and improve land utilization, or in areas where direct seeding is not suitable in spring drought, seeding and transplanting are often adopted.
The method is to make a high ridge with a width of 1.2 m and a length of 2 1 m on the whole land, with drainage ditches on all sides.
Seeding horizontally in the border with row spacing of12cm and depth of 5cm. Spread the seeds evenly into the ditch, cover them with soil for 2-3 cm, and then cover them with a layer of grass.
Expose the grass after germination and digging holes.
Pay attention to weeding, and apply some diluted human excrement and urine topdressing in May and June.
In winter, in late June, 3-5 cm of soil was cultivated on rhubarb seedlings in 438+1October to prevent the seedlings from being damaged, and the seedlings were transplanted in the next year.
Transplanting in mid-April (Grain Rain) or late August (summer) in the second year of seedling raising.
After digging out the seedlings, cut off the lateral roots of the seedlings, plant the whole plant in time, with the row spacing of 60 cm, dig holes 15-30 cm deep, each hole 1 plant, cover the soil, bury the reed head, and compact the soil to make the roots and soil closely combine.
When transplanting, "curved root planting" can be adopted, that is, when planting, the root tip of the seedling is bent upward into an L shape, which can greatly reduce the bolting rate of the plant.
(3) Propagation of sub-buds When harvesting rhubarb, pick and plant robust and large sub-buds sprouting from the roots of the mother plant.
Buds that are too small can be planted in seedbeds and then planted in the following autumn.
In order to prevent the wound from rotting, plant ash can be applied to the wound when planting.
3. Tian Tuan management
(1) In the first year of intertillage weeding, rhubarb seedlings are small and weeds are easy to grow. Weeding should always be combined with loosening soil, planting soybeans and corn between rows to inhibit the growth of weeds.
Weed and loosen the soil in the second year to the third year, early May and mid-July, and cultivate more soil at the roots.
(2) Fertilized rhubarb is a fertilizer-loving plant, and it needs topdressing 2-3 times a year besides base fertilizer.
In June of the first year, 50 kg of cake fertilizer and 0/0-20 kg of calcium superphosphate/kloc were used.
In the second year, topdressing was conducted twice. In May and June, human excrement and urine, or 20-30 kg of calcium superphosphate and 0/0-20 kg of potassium chloride/kloc were applied to the furrows between rows, and then covered with soil and watered.
(3) After planting rhubarb, bolting and flowering began in the second year. Except for planting, all other plants should be plucked, and bolting should be carried out on sunny days.
4. Pest control
The main disease is root rot, which mostly occurs in the rainy season from August to September, or when it is hot and humid, and mostly occurs in the year or the year before the rhubarb harvest.
The top of the root began to turn black and rot, and the leaves turned yellow at the same time, even died.
The prevention method is to pay attention to the elimination of stagnant water and loosen the soil in time.
After dressing, melt the soil of the wound or disinfect it with quicklime water.
Pull out the diseased plants as soon as possible after the onset of the disease, collect and burn the litter in autumn, and reduce the source of germs.
Insect pests are aphids, which are more serious in June and July. dimethoate EC can be sprayed 2000 times.
Rodents can be captured or culled manually.
5. Harvest and processing
After planting rhubarb for 2-3 years, harvest it in September-65438+1October when the aboveground parts wither.
When harvesting, cut off the above-ground parts first, dig out all the roots and rhizomes, and shake off the soil carefully. Extra-large roots can be cut into several pieces, and small ones can be cut into pieces and dried or dried.
After drying, put it into a wooden box or a drug collider for collision, and knock off the rough epidermis to show yellow color.
About 400 Jin of dry goods can be collected per mu.
What role and efficacy does rhubarb have? Its aliases are Vulcan, Furu, General, Rhubarb, Sichuan Army, Army, Rhubarb, Rhubarb, Rhubarb, Rhubarb, Rhubarb, Rhubarb and Rhubarb.
Deficiency of spleen and stomach, blood deficiency and qi deficiency are prohibited for women before pregnancy, postpartum, menstrual period and lactation.
Basic introduction of rhubarb
Rhubarb is the general name of many perennial plants of Polygonaceae and the name of Chinese herbal medicine.
In China's literature, "rhubarb" often refers to rhubarb.
In China, rhubarb is mainly used for medicine, but in Europe and the Middle East, their rhubarb often refers to several other edible rhubarb varieties with red stems.
The smell is fragrant, the taste is bitter and slightly astringent, and it sticks to the teeth with a sense of sand.
Stems and leaves wither in late autumn or are excavated before germination in the following spring.
Remove fine roots, scrape off skins, cut petals or segments, and string them to dry or directly dry them.
Rhubarb, a traditional Chinese medicine, has the effects of relieving depression, clearing damp-heat, purging fire, cooling blood, removing blood stasis and detoxifying.
Efficacy and function of rhubarb
Rhubarb is a very common Chinese herbal medicine.
The efficacy and function of rhubarb are outstanding.
1. Rhubarb has strong anti-infection, anti-aging, anti-oxidation, immunomodulation, anti-inflammation, antipyretic, anti-pathogenic microorganisms, blood lipid lowering, hemostasis, anti-gastric and duodenal ulcer, promoting pancreatic juice secretion, inhibiting pancreatic enzyme activity, benefiting gallbladder, protecting liver and stopping diarrhea.
2. Rhubarb has anti-infection effect, which can inhibit a variety of Gram-positive bacteria and Gram-negative bacteria, among which Staphylococcus and Streptococcus are the most sensitive, followed by diphtheria, typhoid and paratyphoid, pneumococcus and Shigella.
3. Rhubarb can increase intestinal peristalsis, inhibit intestinal water absorption and promote defecation.
4. It also has the functions of stopping bleeding, protecting liver, lowering blood pressure and lowering serum cholesterol.
5. Raw rhubarb can purge heat and dredge intestines, remove blood stasis and dredge menstruation, and cool blood and detoxify.
It can be used for the external treatment of amenorrhea due to blood stasis, traumatic injury, damp-heat jaundice, hematemesis due to blood heat, constipation due to excess heat, abdominal pain due to stagnation, intestinal carbuncle, diarrhea, conjunctival congestion, sore throat, carbuncle, and scald caused by fire and water. Upper gastrointestinal bleeding.
Rhubarb charcoal cools blood, removes blood stasis and stops bleeding.
It is used for patients with blood stasis and bleeding.
deal with
1. Clean to remove impurities and clean.
2. Cut and wash, thoroughly wet, cut into thick pieces, or dry into pieces.
Separate the big and small pieces, soak them slightly, take them out, drench them thoroughly, cut them into thick pieces or small squares, and dry them in the air or at low temperature.
Soak in water, fully moisten, cut into pieces with a thickness of 1.5-5 mm, and dry in the sun or air.
Bake Dahuang tablet at low temperature, grind into fine powder, and sieve.
Taking method
Oral administration: decoction, 3-12g; After purgation and catharsis, it is advisable to purgate, not to decoct for a long time; Or soak in boiling water and take the juice to drink; Grinding, 0.5-2g；; ; I still took the pills and dispersed them.
External use: appropriate amount, grinding, blending or decocting, washing and coating.
Decoction can also be used for enema.
This is the end of the introduction of the efficacy and side effects of Sichuan rhubarb. I wonder if you have found the information you need? If you want to know more about this, remember to collect this website.