Aster, also known as Aster, is a common plant in the Asteraceae family. It is the dried root and rhizome of the Asteraceae plant. It is a well-known Chinese medicinal material, and it also has many functions. Today I have compiled knowledge about the functions of aster for you, I hope it will be helpful to you.

Efficacy and effects of aster

Reducing phlegm and stopping bleeding: "Compendium of Materia Medica": "Specialized in treating bloody phlegm, it is a medicine for blood labor." Yin deficiency causes dryness of the lungs, and lung yin is depleted and damaged. The lungs lose moisture and the veins are damaged. Symptoms include dry cough with short and short cough, sometimes bloodshot sputum, heat in the palms and soles in the afternoon, or night sweats, dry mouth and throat, chest tightness and dull pain, red tip of the tongue, and thready and rapid pulse. This product can be used to moisten the lungs, resolve phlegm and stop bleeding. ?

Detoxification and sore throat: Aster is bitter and can clear away heat. It enters the lung meridian, so it can clear away heat, detoxify and soothe the throat. "Treatise on the Sources of Diseases" says: "Throat paralysis" is caused by wind poison in the throat, where Qi accumulates and generates heat. ?This syndrome is mostly caused by wind-heat pathogens attacking the throat from the mouth and nose, causing qi and blood to stagnate, transforming heat and producing poison. At first, the throat is dry and uncomfortable, and the sore throat is mild, or a slight sore throat is felt when swallowing, and then Sore throat is obvious. As a result, there is difficulty in swallowing, pain in the ears, swelling and drooping of the penis, hoarseness, and heavy voice. At the beginning of the disease, there may be fear of cold, aversion to cold, headache, and soreness in the limbs and joints. Subsequently, body heat, thirst and desire to drink, constipation, short red urine, thin yellow tongue coating, and rapid and rapid pulse. This product can be used to clear away heat, detoxify, relieve sore throat and reduce swelling. "Shijian Materia Medica": It controls the lung meridian due to deficiency and heat, opens the throat, and removes saliva. ?

Antibacterial: In vitro tests have certain inhibitory effects on Staphylococcus aureus, Escherichia coli, Shigella sonnei, Proteus, Typhimurium, Paratyphoid, Pseudomonas aeruginosa and Vibrio cholerae.

Removing phlegm: Aster saponin can increase the respiratory tract secretions of animals. Anesthetized rabbits can take 1 g/kg of decoction by gavage, which has a significant expectorant effect. The effect can last for more than 4 hours.

Antitussive: A colorless needle-shaped crystal isolated from the alcohol extract of aster root has a significant effect on coughing in mice caused by ammonia spray.

Anti-cancer: Epicancerol isolated from aster has a certain anti-cancer effect on Ehrlich ascites cancer.

This product contains saponins and has a strong hemolytic effect, so it is not suitable for injection.

Compatible application of Aster

With Ophiopogon japonicus: "Compendium of Materia Medica Shu Gou Yuan"? Aster and Ophiopogon japonicus are two flavors that should be used in conjunction with each other. They both originate from the heart and lead to the lungs. , causing the lung yin to decrease, it can nourish the true essence and benefit the deficiency and fatigue. If there is no bleeding due to deficiency and fatigue, aster can be used to harmonize the blood and dissipate stagnation, and then the emollient can restore the pulse and open the heart. ? Ophiopogon japonicus has a lot of sweet and cold juice, which enters the lung meridian and has the function of clearing the lungs and nourishing yin. Aster dissipates pungency and relieves bitterness. It has strong phlegm-removing power and is good at resolving phlegm and relieving cough. The two medicines can be used together. It is suitable for lung yin deficiency, dryness and sticky phlegm, or labor-heat and asthma. It can also be used for lung labor cough and blood-stained sputum.

With coltsfoot flowers: Aster and coltsfoot flowers are both warm in nature but not dry. They can resolve phlegm, relieve cough and asthma, and are suitable for both cold and heat. Coltsfoot enters the Qi component, warms the lungs and resolves phlegm, and cures long-term cold cough and asthma; aster enters the blood component, relieves the lungs and resolves phlegm, and cures long-term fever and labor cough. The former is more effective in relieving coughs, while the latter is more effective in removing phlegm. The two medicines are used together to moisten the lungs and relieve coughs. They are suitable for people with chronic coughs and bleeding due to labored coughs. They are generally used by roasting with honey.

With Baibu: both medicines are warm but not drying, Aster is pungent and powdery and bitter, and Baibu is sweet and moist with bitterness. The combination of the two medicines has the effect of lowering qi and removing phlegm, moistening the lungs and relieving cough. It can be used for symptoms of exogenous cough or persistent cough with bloody sputum.

With perilla: perilla lowers qi and relieves asthma, eliminates phlegm and relieves coughs, relieves diaphragm and relieves stagnation, aster warms and relieves cough, resolves phlegm and lowers qi. The two medicines are used in combination, one moisturizing and the other lowering, which can relieve cough and asthma, resolve phlegm and promote diaphragm, treat lung failure, cough and asthma caused by excessive phlegm and gas, and chest tightness.

With orange: Aster is pungent but not dry, moist but not cold, tonic but not stagnant. It functions to resolve phlegm and reduce qi, clear away lung heat, moisten the lungs and relieve cough, and tends to dispel stagnation of lung qi. It can be used for coughs caused by wind-heat and lung stagnation. The orange-red color is warm and dry, and the smell is fragrant. It can dispel wind and reduce phlegm. It is suitable for people with excessive phlegm. Its phlegm-resolving effect is greater than that of tangerine peel. The combination of the two medicines can effectively moisturize dryness, have strong dispersing power, relieve coughs and reduce phlegm. It is mainly used to treat coughs caused by imbalance of Qi movement, phlegm blocking the chest and diaphragm, cough and phlegm, chest tightness and discomfort, and cold and heat are not obvious.

With donkey-hide gelatin: donkey-hide gelatin is sweet and flat, nourishes blood, nourishes yin, moistens the lungs and stops bleeding. Aster fried with honey has strong power to moisten the lungs and relieve coughs. It can enter the blood system of the lungs and treat hemoptysis due to lung deficiency. The two medicines are compatible, nourishing yin and moisturizing the lungs, relieving cough and bleeding, and are used to treat tuberculosis cough, blood in sputum, lung abscess, and lung failure. However, it should not be used by those with weak spleen and stomach.

Aster planting technology

1. Site selection and soil preparation: Aster should grow in sandy loam soil, and the roots are deep in the soil, so more base fertilizer must be applied. Generally, 50-100kg of cake fertilizer (all kinds of cake fertilizers are acceptable) and 3000-5000kg of soil and manure are spread as base fertilizer, and then the soil particles are fully finely divided with a fine-toothed rake to prepare for planting roots. If aster is planted in a large area, the soil must be plowed deeply to 20-23cm, and raked multiple times to make the soil grains evenly fine and the border surface smooth.

2. Propagation: Aster propagates with fine roots near the ground, with root lengths about 35cm.

For spring planting, from the Spring Equinox to Qingming Festival, use a shovel to dig out the seeds, and then use scissors to cut the roots into 3 to 6 cm long. Then dig a trench on the good land and cut the seeds. (5-8 roots) are placed in a clump in the ditch with a depth of 7-10cm and a row spacing of 34cm square; roots are also planted at a distance of 34cm between the first row of plants and a distance of 17cm between the second row of plants to form a triangle. For a small area of ??land, use a pickaxe to pull the ditch, insert the seeds, cover with soil, level the ground, make a border, water, and seedlings will emerge in about 20 days. After the seedlings emerge, weeds should be removed frequently and watered a second time, and then watered a third time after the seedlings become established. If there is a drought and the ground is dry, water once every 5 to 6 days.

Autumn planting must be planted before the beginning of winter. The roots of aster are cold-tolerant and not afraid of freezing. The method of planting is the same as spring planting. Seedlings planted in autumn develop vigorously. Aster will not bloom that year when planted in spring, but will bloom into purple-red flowers in the autumn of the second year. The flowers will not grow roots, so you can harvest them without waiting for them to bloom. The roots should be dug out after the spring thaw in the second year. If there are many seedlings produced and the roots are good and red, it is most suitable for spring planting. The amount of roots required per 667㎡ is 15~20kg.

Cultivation management

After the seedlings are gathered, lightly loosen the soil and remove weeds. Combined with the loose soil, apply 1000-1500kg of decomposed human and animal manure per acre; when the seedlings are 7-9cm high, combine with cultivating every acre. Topdress 1,500kg of decomposed human and animal manure per acre; apply 300kg of decomposed compost and 50kg of decomposed cake fertilizer per acre in conjunction with cultivating and weeding before closing the rows. Apply them in trenches next to the plants and cover with soil after application. After sealing the rows, if there are any weeds, pull them out by hand. Drain ditches and drain immediately after rain or irrigation, and irrigate in case of drought. If bolting is found, cut it off promptly.

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