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Classification and Application of Plant Extracts


Plant extracts refer to substances extracted or processed from plants (all or a part of plants) using appropriate solvents or methods, and can be used in the pharmaceutical industry, food industry, daily chemical industry and other industries.


Ⅰ. Classification of pure natural plant extract


1. According to the content of active ingredients, it can be divided into three categories: effective monomer extract, standard extract and ratio extract;


2. According to the ingredients, it is divided into glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc.;


3. According to the product form, it can be divided into pure natural plant extract, vegetable oil and natural functional ingredients.


4. According to the purpose, botanical extracts can be divided into natural pigment products, natural aroma ingredients, traditional Chinese medicine extract products, extract products and concentrated products.


Ⅱ. What are the applications of plant extracts?


The application range of plant extracts is very wide now. In addition to the traditional use in traditional Chinese medicine products, with the gradual increase of people's trust and dependence on natural products, a large part of plant extracts have been used in health care products and food ingredients. In addition, botanical extract wholesale have been used in cosmetics and feed in recent years.


Some of the best-selling plant extracts in the world are classified into several categories. For example, Rhodiola, ginkgo, and ginseng extracts are used in the fields of brain strengthening, intelligence, and prevention and treatment of Alzheimer's disease; green tea, citrus aurantium, apple, bitter gourd Polypeptide extracts are used in weight loss, blood sugar lowering and prevention and treatment of diabetes; paclitaxel, tea polyphenols, theanine, bioflavonoids, such as lycopene, anthocyanins, etc. are used in the field of natural anti-cancer; licorice, garlic, astragalus, soy isoflavones extract is used in the field of human immune system.


Among them, natural plant oils are oily liquids with aroma and volatility. They are mixtures composed of various compounds. They have physiological activity and have many medical effects, such as relieving cough, relieving asthma, sweating, relieving epidermis, expectorating phlegm, and dispelling wind. , analgesic, antibacterial, etc. The volatile oil content of medicinal plants is relatively rich in arborvitae, magnolia bark extract powder, Xinyi, camphor tree, cinnamon Evodia, chinese angelica powder, and Angelica sinensis, ligusticum chuanxiong root extract, peppermint and so on.


Based on the legislative scope, concept and usage of various countries, the concept of plant extracts can be accepted and recognized by various countries, and it is also a common expression of dissemination of herbal medicines in various countries. As early as 1999, the export value of Chinese plant extracts exceeded that of Chinese patent medicines. 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 an annual sales of nearly 8 billion US dollars.


Plant extracts in China are generally intermediate products with a wide range of uses, mainly used as raw materials or auxiliary materials for medicines, health food, tobacco, and cosmetics. There are also many kinds of raw material plants used for extraction. At present, there are more than 300 kinds of plants that have entered into industrial extraction.


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