Introduction of green tea extract
L-theanine is an amino acid found in ordinary tea leaves from Camellia sinensis (also known as Thea sinensis, hence the name theanine). It is also found in other species of Camellia and in the edible bay boletes mushroom Xerocomus badius, but is otherwise rare in nature. L-theanine has the reputation for promoting mental and physical relaxation-decreasing stress and anxiety-without inducing drowsiness. L-theanine in nature only exists in tea plants accounting of 1%~2% of dry tea in free state, and is the main amino acid in tea accounting of some 50% of free amino acids. L-theanine is essential to human body, which can not synthesize and shall be supplied externally.
Why Use Green Tea Extract?
Although drinking green tea can be a refreshing and healthy habit, its taste is not agreeable to many. Using sugar to offset its bitterness just becomes counterproductive to someone trying to lose weight. Adding milk to make it more palatable not only increases the calories but also hinders the absorption of catechins.
This is where green tea extract comes in. It is a herbal derivative containing all the active ingredients of green tea in concentrated form, available as capsules or liquid extract. Natural green tea also contains caffeine, although to a lesser extent than coffee. Caffeine is also a substance that boosts energy expenditure but many people are sensitive to it. The advantage of using green tea extract is that decaffeinated varieties are available.
Function of green tea extract
1.L-Theanine will reduce blood pressure,blood sugar,blood lipids
2.L-Theanine powder with the function of removing radicals and anti-aging;
3.Green tea extract l-theanine can enhance the immune function and prevention of colds;
4.Green tea extract l-theanine will anti-radiation,anti-cancer,inhibiting the increasing of cancer cell;
5.Green tea extract l-theanine powder used to anti-bacterium, with the function of sterilization and deodorization.
Application of green tea extract
1.Applied in food field, adds tea polyphenols in foods can maintain original flavor, preventing corruption and discoloration, with the function of restraining and killing bacteria, which will improve the food hygiene standards;
2.Applied in pharmaceutical field, l-theanine 99% is also used to treat cardiovascular disease and cancer;
3.Applied in cosmetic field, protecting skin from the harmful sun exposure, which will prevent skin cancer.