Composed of sugar and non-sugar materials. The commonality of glycosides is in the sugar part. Different types of aglycones have different physiological activities and have many functions. For example, digitalis leaves contain cardiac glycosides, and ginseng contains ginsenosides for qi, shengjin and soothe the nerves.
Also known as essential oil, it is an oily liquid with aroma and volatility. It is a mixture of various compounds. It is physiologically active and has many functions in medicine, such as cough, asthma, sweating, anti-extension, expectoration, and expelling Wind, analgesic, antibacterial, etc. Among the medicinal plants, the volatile oil content is rich in Platycladus orientalis, Magnolia officinalis, Xinyi, camphor tree, cinnamon Evodia, Angelica dahuricae, Chuanxiong, Angelica, mint and so on.
A mixture of polyphenols. Exist in a variety of plants, especially in the Salicaceae, Fagaceae, Polygonaceae, Rosaceae, Leguminosae, Myrtaceae and Rubiaceae plant content. The gall gall medicinal material produced on the medicinal plant salt skin is called gallnut, which contains gallnut tannins, and has the functions of astringent, antidiarrheal and antiperspirant.
Such as sugars, amino acids, proteins, enzymes, organic acids, oils, waxes, resins, pigments, inorganic substances, etc., each have special physiological functions, many of which are important clinical drugs.
Based on the legislative categories and concepts of various countries and their usage, the concept of plant extracts can be accepted and recognized by various countries, and it is also a common expression used to spread herbal medicines in various countries. The export value of Chinese plant extracts exceeded the export value of Chinese patent medicines as early as 1999. In European and American countries, plant extracts and their products (plant medicines or food supplements) have a broad market prospect, and have developed into an emerging industry with annual sales of nearly 8 billion US dollars.
The plant extracts in China are generally intermediate products, which are currently widely used, mainly used as raw materials or auxiliary materials for medicines, health foods, tobacco, cosmetics, etc. There are also many types of raw material plants used for extraction, and currently there are more than 300 plant varieties that are being extracted industrially.