The mass fraction of moisture in the dry extract is not more than 10%
Mass fraction of moisture in the thick extract is not more than 50%
Mass fraction of insoluble substances in water not more than 5%
Mass fraction of tannins in the dry extract (in terms of tannin), not less than 6.0%
Aspen is a dioecious root tree that can grow up to 30 meters in height. The bark of the plant is smooth, gray, but sometimes green. Aspen leaves are rounded or rhombic, bare, with rounded teeth at the edges. The leaves are painted in two colors: top-green, bottom-bluish hue. The leaves have flattened petioles, through which they move. The plant has dicotyledonous flowers of small size, which are collected in inflorescences-earrings. Female flowers have a pistil with the upper ovary and 2 purple stigmas, male flowers consist of 5, 6, 7 or 8 stamens and anthers of red color. Aspen blooms until the leaves bloom (April). Immediately after flowering, the plants ripen the fruits (May-June). Aspen fruits - boxes, consisting of two wings. Inside the fruit in large quantities are fluffy seeds. Seeds are very light and small. The root system of the plant is deep in the soil, so it is not afraid of fires. Aspen is common in forests, forest-steppe zones, on the shore of a reservoir, at swamps and ravines. It grows throughout Russia, in Mongolia, the Crimea, China, Europe and Kazakhstan.
Aspen bark contains many beneficial substances, such as aromatic and fatty acids, tannins, carbohydrates and phenol glycosides. The buds of the plant contain essential oils, resins, flavones and mineral salts. Fresh aspen leaves are rich in vitamin C, carotene and various enzymes. Aspen possesses a whole spectrum of substances useful to man. Most often, the plant is used as a diaphoretic and anti-inflammatory agent. Aspen has antipyretic, diuretic and astringent properties. Aspen is made from the tincture, which is used for gout, rheumatism, problems with urination and inflammation of the bladder.
Aspen has been widely and for a long time used in folk medicine as an effective and universal medicine. Preparations are made from buds, leaves, and bark of a plant. Prepared from aspen medicines have analgesic properties. Aspen decoction is used to treat gastritis, diarrhea, and as a remedy that increases the appetite and improves the functioning of the digestive tract. Tincture of the plant's buds helps with cystitis, hemorrhoids and dysentery. An ointment is prepared from the kidneys for external use, which is used for bruises, ulcers and wounds. Aspen leaves are used in the form of poultices that help in the treatment of rheumatism, hemorrhoids and gout.