What is Theanine? Theanine has what effect?

Theanine (L-Theanine) is a unique free amino acid in tea, theanine is a glutamate γ-ethyl amide, a sweet taste. Because of tea theanine content of the varieties, location and movements. Theanine tea accounted for in the dry weight of 1% -2%.

Theanine in the chemical structure of the active substances with brain glutamine, glutamate is similar to sweet tea Yezhong Sheng Jin Yun major components. New tea theanine content of about 1 to 2% of its content decreased with the fermentation process.
Theanine is a 21st century health food

At present the majority of the health food market is the role of adult disease prevention or improved varieties. This is neither as theanine with hypnosis, but also the solution eliminate fatigue, lower blood pressure and improve learning and memory in health food is actually rare, eye-catching. To this end, theanine has been held in Germany in 1998, the international food materials research department at the awards received.

Numerous studies show that theanine is not only the quality of tea has a great influence, but also promote the growth of brain function and nerve, blood pressure sedative and other effects. Specifications: Theanine 20%, 30%, 98% features: 1, 2, excellent improvement effect of flavor, relaxation sedation, anxiety, but does not cause drowsiness 3, improve sleep quality 4, 5, lowering blood pressure functions, improve brain function to promote learning and memory brain 6, enhance immunity, anti-fatigue

Theanine effects on central neurotransmitter activity

And others across the theanine in the determination of the various parts of the brain monoamine (monoamine) Metabolism found that theanine can significantly promote the brain dopamine (dopamine) release, increased physical activity in brain dopamine. Dopamine is a neurotransmitter activation of brain cells, its biological activity and is closely related to people's feelings. Although people of theanine in the brain mechanism of the central nervous system is not very clear. However, mental and emotional Theanine is no doubt in part the impact on central neurotransmitter dopamine from the role of physical activity. Of course, anti-fatigue effects of drinking tea is also considered to some extent from this effect.

Yokogoshi and others in their other experiments further confirmed the direct impact on taking theanine and learning, and memory-related brain neurotransmitter 5 - hydroxytryptamine activity.

Hypotensive effect of theanine

Generally believed that human blood pressure regulation is subject to central and peripheral catecholamine neurotransmitter (catecholamine) and 5 - HT secretion of. Some recent studies have shown can reduce the theanine in spontaneously hypertensive rats. Kimura and others thought that the antihypertensive effect of theanine on the brain might come from the central neurotransmitter 5 - hydroxytryptamine regulation of secretion.

Theanine shows the effect of lowering blood pressure to some extent, can also be seen as a stabilizer. The effect of this stability is undoubtedly contribute to the recovery of physical and mental fatigue.

Theanine learning, and memory

Chu and others had reported that they had Operanttest (light switch in accordance with the provision of prey, while a subsequent experimental animal study) study found that daily use by oral administration of 180mg of theanine in rats learning ability compared with the control group a certain increase. In addition, Avoidance test (when the animals placed into the next room when the prey of the darkroom, dark room in the shock would be an animal memory test) in the study also confirmed Theanine can enhance memory in rats. At present, many studies have shown that theanine increased the role of learning and memory is the result from the activation of central neurotransmitter.

Physical and psychological effects of theanine Kuang Yi

As early as 1975, Kimura et al theanine has been reported to cause central nervous system with ease over-excited about the role of caffeine. Although the caffeine content in tea than coffee and cocoa, but because of the presence of theanine in tea when people enjoy a coffee and cocoa do not have the feeling of physical and mental Kuang Yi.

As we all know, the surface can be measured in our brain to α, β, σ and θ 4 species is closely related to human physical and mental state of brain waves. Chu and others observed Theanine 15 18 ~ 22-year-old young women the impact of brain waves showed that 40min after oral administration of theanine significantly increased α-wave trend. However, in the same experimental conditions they did not find theanine sleep advantage θ-waves. From these results, they consider taking theanine Kuang Yi caused physical and psychological effects are not people tend to sleep, but also enhance the role of attention.