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Green tea extract is an active ingredient extracted from green tea leaves, which mainly includes tea polyphenols (catechins), caffeine, aromatic oils, moisture, minerals, pigments, carbohydrates, proteins, amino acids, vitamins, etc. Tea polyphenols have antioxidant and free radical scavenging effects, can significantly reduce serum total cholesterol, triglyceride, and low-density lipoprotein cholesterol levels in hyperlipidemia, while also restoring and protecting vascular endothelial function. The hypolipidemia effect of tea polyphenols is also one of the main reasons why tea can help obese people lose weight without rebounding.
What are tea polyphenols?
Green Tea Polyphenols (GTP) is the main component of green tea, accounting for about 30% of green tea extract. GTP is extracted from tea leaves and their by-products (tea powder, tea pieces, crude tea or pruned leaves). Since only food-grade ethyl acetate is used for extraction, the original structure of GTP is retained, and the product is a light yellow powder. The main component is composed of catechins, accounting for about 60% to 80% of the total GTP, including 4% to 6% epicatechin (L-EC) and 6% to 8% gallocatechin (D.L). -EC), 10%~15% epigallocatechin (L-EGC), 50%~60% epigallocatechin gallate (L-ECG), and 8%~10% caffeine.
The GTP structure is rich in phenolic hydroxyl groups, which can provide active hydrogen to inactivate free radicals. The free radicals formed by oxidation themselves have higher stability due to the catechol structure. Therefore, GTP has the function of scavenging free radicals and inhibiting lipid peroxidation.
1.Health benefits of green tea extract
1.1hypolipidemic effect
The tea polyphenols in green tea extract can significantly reduce the serum total cholesterol, triglyceride, and low-density lipoprotein cholesterol levels in hyperlipidemia, and at the same time restore and protect vascular endothelial function. The hypolipidemia effect of tea polyphenols is also one of the main reasons why tea can help obese people lose weight without rebounding.
1.2tumor inhibition
The tea polyphenols in green tea extract can inhibit the synthesis of DNA in tumor cells and induce cleavage of mutated DNA, thereby inhibiting the synthesis rate of tumor cells and further inhibiting the growth and proliferation of tumors.
1.3Anti-oxidize effect
The tea polyphenols in green tea extract can block the lipid peroxidation process and increase the activity of enzymes in the human body, thus having anti-mutation and anti-cancer effects.
1.4Bactericidal and detoxifying effect
The tea polyphenols in green tea extract can kill botulinum toxin and spores and inhibit the activity of bacterial exotoxins. It has antibacterial effects on various pathogenic bacteria that cause diarrhea, respiratory tract and skin infections. Tea polyphenols have a significant inhibitory effect on Staphylococcus aureus and Proteus bacteria that cause purulent infections, burns, and trauma.
1.5Hangover relief and liver protection
Alcoholic liver damage is mainly free radical damage caused by ethanol. Tea polyphenols, as free radical scavengers, have the effect of inhibiting alcoholic liver damage.
1.6Detoxification
Serious environmental pollution has obvious toxic effects on human health. Tea polyphenols have a strong adsorption effect on heavy metals and can form complexes with heavy metals to produce precipitation, which is beneficial to reducing the toxic effects of heavy metals on the human body. In addition, the tea polyphenols in green tea extract can also improve liver function and diuretic effects, so they have a good anti-alkaloid poisoning effect.
1.7Improve body immunity
The tea polyphenols in green tea extract stimulate changes in antibody activity by increasing the total amount of human immunoglobulin and maintaining it at a high level, thereby improving the person's overall immunity and promoting the body's own conditioning function.
Health Tip: While we enjoy the benefits of green tea and its extracts, we should also pay attention to drinking it in moderation. Excessive consumption of green tea may cause insomnia, stomachache and other adverse reactions. Also, the caffeine content in green tea is not suitable for people with gastrointestinal problems and pregnant women.
Jack Yao
Post time: Feb-11-2024