Green tea extract refers to compounds or active ingredients extracted from green tea. Here are some common green tea extracts:
1. Catechins: The most representative active ingredients in green tea include epigallocatechin-3-glucose (EGCG), epigallocatechin-3-glucose (EC), epigallocatechin-3-glucose (EGC) and epigallocatechin-3-glucose (ECG). Catechins are powerful antioxidants with a variety of biological activities such as anti-inflammatory, anti-cancer and anti-aging.
2. Theaflavins: Tea polyphenols are flavonoid compounds in green tea, mainly found in fermented tea. They have antioxidant and anti-inflammatory properties and are beneficial to cardiovascular health and blood lipid regulation.
3. Theanine: Theanine is an amino acid in green tea that has a calming and relaxing effect and can help reduce stress and anxiety.
4. Thearubigins: Thearubigins are flavonoid polymers in green tea, mainly found in fermented tea. They give tea leaves a deep red color and have certain antioxidant and antibacterial effects.
These green tea extracts are widely used in the fields of medicine, health care products and cosmetics, and are used to develop various functional products and drugs.
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