Rhubarb /Radixet Rhizoma Rhei Extract
Botanical Source: Radixet Rhizoma Rhei
CAS NO: 518-82-1
Part Used: Root
Appearance: Yellow powdered
Specification: Emodin 10%,50%, 4:1
Test Method: HPLC,UV

Decription:

The root and rhizome of Rheum palmatum L. (sorrel rhubarb), Rheum tanguticum Maxim. Et Balf. (Tangut rhubarb) or Rheum officinale Baill. (medicinal rhubarb), a perennial herb, of the Polygonaceae family.

Rhubarb refers to any of several species of the genus Rheum. Rhubarb is best adapted to the cooler parts of the temperate zones. The perennial grows to about 2 m by 0.8 m. It is in flower from June to July. The flowers are hermaphrodite (have both male and female organs) and are pollinated by wind. The plant requires well-drained soil and can grow in heavy clay soil. It can grow in semi-shade (light woodland) or no shade.

Main Functions:
It has antibacterial effect on a variety of bacteria,
can stop cough,
promote bowel movement,
promote nerve stimulation and muscle paralysis.
Eliminating stagnant food by purgation;
Clearing away fire to purge it, arrests bleeding;
Removing toxic substances;
Promoting blood circulation by removing blood stasis.


Rhubarb has a long and proven history of herbal usage, its main effect being a positive and balancing
Effect upon the whole digestive system. It is one of the most widely used herbs in Chinese medicine.


Applications:
1. To treat constipation and food stagnation in the stomach and intestines.
2. To treat hematemesis, epistaxis and hemoptysis due to blood heat and ailments
Caused by flaming-up of pathogenic fire such as conjunctivitis, sore throat, gingivitis, etc.
3. To treat skin and external diseases due to toxic heat and burns and scalds.
4. To treat syndromes of blood stasis.
5...To treat ailments due to damp-heat, such as jaundice, strangury, etc.


Cautions on Use:
As this herb is so bitter and cold as to be liable to impair stomach-qi, it should be used carefully by those deficient in spleen-yang. Since it is sinking and lowering in properties and good at promoting blood circulation by removing blood stasis, it should be avoided by women during pregnancy, menstruation or lactation.

Although no specific mention has been seen for this species, the leaves of some if not all members of this genus contain significant quantities of oxalic acid and should not be eaten in any quantity. Oxalic acid can lock up certain minerals in the body, especially calcium, leading to nutritional deficiency. The content of oxalic acid will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition.


 
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