Theabrownins is a general term for a series of natural pigments with biological activity in the body of Theabrownins, the following is a detailed introduction to Theabrownins:<\/p>\n\n\n\n
1. Definition and classification<\/p>\n\n\n\n
Theabrownins are mainly composed of water-soluble pigments and fat-soluble pigments, of which water-soluble pigments are the main components that form the colour of dried tea leaves and the underside of leaves. According to the colour, Theabrownins can be divided into theaflavins (TFs), thearubigins (TRs) and teabrownins (TBs).<\/p>\n\n\n\n
2. Source and formation<\/p>\n\n\n\n
Theabrownins are derived from tea polyphenolic compounds in tea leaves, which are converted into Theabrownins through enzymatic or non-enzymatic oxidation reactions during tea processing. Theabrownins are the primary extracted form of tea pigments, mainly in the process of tea processing, by simple catechins and gallocatechin paired oxidative condensation and formation. Theobromine is the product of further oxidation of theaflavins, while theobromine is formed by further oxidation of theaflavins and theobromine.<\/p>\n\n\n\n
3. Chemical Properties and Stability<\/p>\n\n\n\n
Theabrownins are extremely active and structurally unstable, changing with temperature and time. Theaflavins are water-soluble pigments, orange-yellow colour, astringent, soluble in water, with weak acidity. Theaflavins are also water-soluble pigments, reddish brown in colour, acidic in aqueous solution, dark red in colour, weaker in acidity and astringency than theaflavins. Theaflavins also belong to water-soluble pigments, dark brown, is a class of non-dialysis polymer.<\/p>\n\n\n\n
4. Biological activities and pharmacological effects<\/p>\n\n\n\n
Theabrownins have a variety of biological activities and pharmacological effects, including:<\/p>\n\n\n\n
Antioxidant and anti-aging: Theabrownins and theobromelain in tea pigments have antioxidant and free radical scavenging effects, thus effectively preventing and treating coronary heart disease, preventing and relieving hypertension, and anti-aging.<\/p>\n\n\n\n
Regulation of blood sugar, blood lipids: Theabrownins have a certain regulatory effect on glucose metabolism, and can significantly improve the insulin sensitivity of hypertensive patients. Studies have shown that Theabrownins in Puerh Tea have obvious weight loss effect on nutritional obesity, which can significantly reduce the weight of obese people, and significantly reduce the content of triglycerides, cholesterol, blood sugar, and low-density cholesterol in large serum.<\/p>\n\n\n\n
Theabrownins also have strong inhibition and killing effect on many kinds of bacteria such as Bacillus botulinum, Bacillus enteritidis, Bacillus podoconiosis and Bacillus pertussis, and also have inhibition effect on influenza virus.<\/p>\n\n\n\n
5. Extraction and application<\/p>\n\n\n\n
Theabrownins extraction technology continues to progress, its yield, quality, biological activity and stability have been greatly improved. Theabrownins, as the latest generation of pure natural medicinal ingredients, have a wide range of therapeutic and health care effects, and have a wide range of applications in the fields of medicine, health care products, food and so on.<\/p>\n\n\n\n
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