Sweet potato

Sweet potato

(Research on medicinal properties)

[synonyms] zhequi (bielu), zhushalian, jixuelian, xuemu (Guizhou folk medicine Collection), xuesanqi, realgar, xuehulu, zhushaqi, hongyaozi, Ebian (Hunan medicine records), Jiangtou, bixuelei (Guizhou herbal medicine), jinhuaguo (Yunnan herbal medicine), honger, haierxue (Jiangxi herbal medicine manual), xuewa (Qujing medicine).

[source] it is the tuber of Dioscorea Dioscorea.

[plant morphology] Dioscorea cirrhosa

Perennial twining vines. Tuber fleshy hypertrophy, oblong or irregular round, surface brown black, verrucous processes, fresh cut red mucus, more fibrous roots. Stem cylindrical, usually branched, smooth, glabrous, spinose near base. The leaves are oblong, ovate, oblong or broadly ovate, 12-20 cm long and 6-7 cm wide, all glabrous, with 3-5 basal veins. Flowers small, unisexual; male inflorescence paniculate, axillary, about 8 cm long, rachis glabrous, angulate, with 15-25 flowers; buds elliptic, base wide; perianth segments 6, 2-whorled, broadly ovate, apex extremely obtuse, about 2 mm long; stamens 6, as long as perianth; female flowers similar to male flowers, arranged in curved spikes, ovary inferior, 3-locular, each locule with 2 ovules, style 3, separated. Capsule glabrous, apex obtuse, 18-23 mm long, middle 25-30 mm wide, 3-valved, 3-winged, seed winged. The flowering period is from June to July. The fruit period is from September to October.

It grows in the valley, under the sparse forest or in the bush. It is distributed in Sichuan, Guizhou, Yunnan, Hubei, Hunan, Guangxi, Guangdong, Fujian, Jiangxi, Zhejiang, etc.

[collection] from May to August, they were collected, cleaned and dried in the sun.

[herbal medicine] the dried tuber is oblong or oval, with reddish brown surface, obvious longitudinal wrinkle and annular depression, forming nodular and undulating protuberances. There is a circle of fibrous root mark in the reduced part of the depression. It is hard, with reddish brown cross section, powdery and regular reticular pattern. White crystals with strong refractive index were observed under a magnifying glass.

Produced in Guizhou, Hunan, Yunnan and other places.

[chemical constituents] the root contains phenolic compounds and tannins.

(1) hemostasis

5 g / kg, the bleeding time and coagulation time were significantly shortened. It seems that the extract of Dioscorea cirrhosa has the effect of promoting platelet coagulation.

② Effect on uterus

The tincture or Decoction of Dioscorea cirrhosa has obvious excitatory effect on isolated mouse uterus, and the tension, amplitude and frequency are enhanced, but the extract has no effect.

③ Antibacterial action

Tincture or decoction has moderate antibacterial effect on Staphylococcus aureus in vitro, but weak antibacterial effect on paratyphoid A and Shigella sonnei. The antibacterial effect may be related to tannins.

[toxicity] the median lethal dose of the decoction was 68.8 ± 9.1 g / kg. The ethanol extract had inhibitory effect on isolated toad heart.

[nature and taste] sweet and sour, flat.

① Bielu: "it tastes sweet, flat and nontoxic. "

② Tang materia medica: "there is little poison. "

③ Guizhou folk medicine: "the nature is flat, the taste is astringent and slightly sour. "

④ Yunnan Chinese herbal medicine: "astringent, bitter, cold. "

Functions and indications: promoting blood circulation, stopping bleeding, regulating qi and relieving pain. Treatment of postpartum abdominal pain, irregular menstruation, metrorrhagia, internal injury, hematemesis, rheumatoid arthritis, dysentery, sores, snake bites, traumatic bleeding.

① "Bielu": "the accumulation of the main heart, except for the three insects. "

② "Medicinal properties test": "wine soaked clothes can promote blood circulation. "

③ "Zhidysentery" in the collection of folk prescriptions in Feizhou. Treatment of postpartum abdominal pain, distention. And asthma. "

④ "Hunan medicine annals": "promoting blood circulation, tonifying blood, relieving pain, dispersing Qi. It is used to treat muscle and bone pain, arthritis, low back pain, internal injury and hematemesis. "

[usage and dosage] oral administration: decoct soup, 1-3 yuan; grind or grind juice. External use: grind powder or grind juice.

[prescription selection] ① treatment of postpartum abdominal pain: cinnabarin three coins. Make sweet wine and clothes. (Guizhou folk medicine Collection)

② Irregular menstruation: Dioscorea cirrhosa root plus rose, fried in water. (Hunan medical records)

③ Cure cough blood: Zhu Sha Lian, lotus root each three money, Mao Cao Gen two money. Fry and serve. (Guizhou folk medicine)

④ Treatment of joint pain: cinnabarin five money. Take fried water and wine. (Guizhou folk medicine)

⑤ Dysentery: Dioscorea cirrhosa root, licorice. At the end of the study, two yuan each time, boiled water. (Hunan medical records)

⑥ Treatment of blood dysentery: cinnabar lotus two money, rattan, wood ginger each one money. Take it in boiling water. (Guizhou folk medicine)

⑦ Treatment of diarrhea: cinnabar lotus two money. Add brown sugar and fry in water. (Guizhou folk medicine)

⑧ To cure red avalanche: three bucks for each of cinnabarine and red cockscomb, and one buckwheat frost. At the end of the research, boiled rice wine clothes. (Guizhou herbal medicine)

⑨ Cure sores and boils: Dioscorea cirrhosa root, Gleditsia sinensis, Prunella vulgaris each three money. Take it in water.

⑩ Treatment of traumatic bleeding: Dioscorea cirrhosa root drying grind powder, external application.

(11) treatment of snakebite: grind the root of Dioscorea cirrhosa with vinegar and apply it externally. (9) the following formula is published in Jiangxi herbal medicine manual.)

[clinical application] 1

It has certain curative effect on gynecological hemorrhage (mainly postpartum lochia, menorrhagia), upper gastrointestinal hemorrhage, hemoptysis, etc. Usage: use root tuber for 3-5 yuan per day, decoct in water and take it twice. It has been reported that honghei was used to treat 218 cases of gynecological hemorrhage with water or acetone extracted tablets, taken three times a day, four tablets each time (equivalent to 12g crude drug). The effective rate was 84%, and the effective rate was 53%. After taking medicine, there are slight reactions, such as stomach discomfort, abdominal distension, dizziness, etc., which generally do not need special treatment.

② Treatment of hemorrhagic purpura

Take 1 liang of red baby (dry) and 3 liang of ground red (Labiatae plant, also known as sauerkraut, guanxugong and mustard) and add 400 ml of water to decoct 150 ml, once or twice. Clinical observation of 5 cases, after 2 days of medication, oral mucosa, gingival bleeding stopped, trunk and limbs purpura decreased, mental condition improved, appetite increased, urine color close to normal. One patient's platelet count increased from 86000 / cm3 to 116000 / cm3.

③ Treatment of bacillary dysentery

Take xuewa and Sanguisorba Sanguisorba for 3 yuan each, decoct them in water, take them twice a day. 22 cases were treated and 20 cases were cured. The average time of symptom disappearance and negative stool microscopic examination was 5 days after taking the medicine.

In addition, oral administration of red baby seems to have a certain curative effect on anemia, and it can increase the amount of milk for those who lack breast milk.

Chinese PinYin : Shu Liang