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Plant Extracts

Plant extracts refer to substances extracted or processed from plants (all or a part of plants) using appropriate solvents or methods. They can be used in the pharmaceutical industry, food industry, daily chemical industry and other industries.
Plant extracts are based on plants as raw materials. According to the needs of the use of the final product extracted, through physical and chemical extraction and separation processes, one or more effective ingredients in the plant are obtained and concentrated without changing the effective ingredients. The product formed by the structure.

Classification and Application

  • Classification
  1. According to the content of active ingredients, it can be divided into three types: effective monomer extract, standard extract and ratio extract
  2. Divided into glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc. according to ingredients
  3. According to the purpose, plant extracts can be divided into natural pigment products, traditional Chinese medicine extract products, extract products and concentrated products
  • Application
    The application range of plant extracts is now very wide. In addition to traditional Chinese medicine products, as people’s trust and dependence on natural products gradually increase, a large part of plant extracts have been used in health care products and food ingredients. In addition, plant extracts have been used in cosmetics and feed in recent years.
    There are several classifications of some of the best-selling plant extracts in the world. For example, Rhodiola, Ginkgo biloba, Ginseng extracts are used in the field of brain strengthening, nourishment, and prevention and treatment of Alzheimer’s; polypeptide extracts of green tea, Citrus aurantium, apple, and bitter gourd Used in weight loss, lowering blood sugar and preventing diabetes; Paclitaxel, tea polyphenols, theanine, bioflavonoids, such as lycopene, anthocyanins, etc. are used in natural anti-cancer fields; licorice, garlic, astragalus, soybean extract Used in the field of human immune system.
plant extracts
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Alkaloids

It is a kind of complex nitrogen-containing organic compound with special physiological activity and medical effect. For example, ephedra contains ephedrine for the treatment of asthma, and scopolamine contains scopolamine with antispasmodic and analgesic effects.

Glycosides

It is formed by combining sugar and non-sugar substances. The commonness of glycosides lies in the sugar part. Different types of aglycones have different physiological activities and have various functions. For example, the leaves of digitalis contain cardiac glycosides which have a cardiotonic effect, and ginseng contains ginsenosides which have the effect of invigorating qi, promoting body fluid and soothing the nerves.

  • Volatile oil
    Also known as essential oil, it is an oily liquid with aroma and volatility. It is a mixture of multiple compounds. It has physiological activity and has many medical effects, such as relieving cough, relieving asthma, sweating, relieving the surface, expectorating, and repelling Wind, analgesia, antibacterial, etc. The volatile oil content of medicinal plants is richer in Platycladus orientalis, Magnolia officinalis, Xinyi, camphor tree, cinnamon evodia, Angelica dahurica, Chuanxiong, Angelica, peppermint and so on.
  • Tannin
    A mixture of polyphenols. It exists in a variety of plants, especially in the Willow family, Fagaceae, Polygonaceae, Rosaceae, Leguminosae, Myrtaceae and Rubiaceae plants. The insect gall medicinal material that grows on the medicinal plant Salvia officinalis is called gallnut, which contains gallnut tannins, which has astringent, antidiarrheal and antiperspirant effects.
  • Other ingredients
    Such as carbohydrates, amino acids, proteins, enzymes, organic acids, oils, waxes, resins, pigments, inorganic substances, etc., each has a special physiological function, many of which are clinically important drugs.
    Based on the legislative scope and concepts and usage conditions of various countries, the concept of plant extracts can be accepted and recognized by various countries, and it is also a common way of expression for spreading herbal medicines in various countries. China’s export of plant extracts exceeded that of proprietary Chinese medicines as early as 1999. In European and American countries, plant extracts and their products (plant medicines or food supplements) have broad market prospects and have developed into a new industry with annual sales of nearly 8 billion US dollars.