By combining sugar and non sugar. Glycosides of the common in the sugar part, different types of glycoside have different physiological activities, with a variety of functions. such as the strong cardiac glycosides in the leaves of Rehmannia glutinosa, ginseng saponins contain the effect of supplementing Qi, Sheng Jin and calming nerves.
Volatile oil
Also known as essential oil, is the aroma and volatile oil-like liquid, composed of a mixture of many compounds, with physiological activities, in the medical treatment has many functions, such as cough, asthma, sweating, Jianqu, expectorant, expelling wind, analgesia, anti-bacterial and so on. The content of volatile oil in medicinal plants is more abundant, including Platycladus orientalis, Magnolia officinalis, Xinyi, camphor tree, cinnamon evodia, Angelica, Chuanxiong, angelica, mint and so on.
Tannin (tannins)
A mixture of phenolic compounds. There are many kinds of plants, especially in Salicaceae, Shell, Liao, Rosa, legumes, peach myrtle and madder. Medicinal plant on the rhus of the gall-tree, said five times times, containing five times times the tannin, with convergence, diarrhea, stop sweating.
Other ingredients
such as sugars, amino acids, proteins, enzymes, organic acids, fats, waxes, resins, pigments, inorganic materials, etc., each with special physiological functions, many of which are clinically important drugs.
The concept of plant extracts can be accepted and recognized by all countries, and it is also the common expression of herbs in various countries. Exports of Chinese plant extracts have surpassed the export of proprietary Chinese medicines as early as 1999. In Europe and the United States, plant extracts and their products (plant drugs or food supplements) have a broad market prospects, has developed into an annual sales of nearly 8 billion U.S. dollars of emerging industries.
China's plant extracts are generally intermediates of the product, the current use is very extensive, mainly used in pharmaceuticals, health food, tobacco, cosmetics raw materials or accessories and so on. There are also many kinds of plants for extracting raw materials, and there are more than 300 kinds of plant varieties that are currently in industrial extraction.