Geranium sanguineum is a herbaceous perennial plant from Geraniaceae family, with very well developed roots. After cut, firstly the roots are pink and after a stay of some time, they become red. After washing, the roots are dried on air or in dryers at a temperature of 40-45oC. The dried roots are red-brown outside and with red tinge inside. The plant contains flavonoids, catechin tannins, polyfenol acids, condensed tanins, sesquiterpene lactones and others.
In the folk medicine, a brew of Geranium sanguineum has been used as a styptic, in cases of anemia and cirrhosis.
Dry extract from Geranium sanguineum
Definition: Product from dryed roots of the plant Geranium sanguineum.
Characteristics: Red-brown to brown amorphous powder, with specific odour, practically insoluble in chloroform, slightly solubile in methanol and ethanol 96%, soluble in water.
Identification: A, B, C
A: Moncyclic sesquiterpenes (germakron) - colour reaction
B: Tannic compounds (tannins) - colour reaction
C: Flavonoids - colour reaction
Testing for purity:
pH (10% solution)
Sulphated ash, %, not more than
Heavy metals, %, not more than
Loss on drying, %, not more than
Content of active substancies:
Tannig compounds, determined as tannin, %
Flavonoids, determined as a sum of apigenin
and quercetin, %, not less than
4,0 to 7,0
24,0 to 30,0
Control: The qualitative indices of the product are controled in accordance with company documentation, in which are included the assay methods and their validity concerning linearity and repetition.
Storage: At a temperature of 20 - 25oC
Shelf life: 2 (two) years from the date of production
The dry extract from Geranium sanguineum is used as an antioxidant, it has immune stimulating properties and is inhibiting the infectious viruses.
It is used alone or in combination with other plant extracts in production of food or feed additives.