Shaanxi Yuantai Biological Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of l-theanine powder in China. With abundant experience, we warmly welcome you to wholesale bulk l-theanine powder for sale here from our factory. Quality products and reasonable price are available.

What Is L-Theanine Powder?

L-Theanine powder is a characteristic amino acid in tea, which is synthesized from glutamic acid and ethylamine in the roots of tea trees under the action of theanine synthase. There are 26 kinds of amino acids (6 kinds of non-protein amino acids) identified in tea, which generally account for 1% to 5% of the dry weight of tea, and theanine accounts for more than 50% of the total free amino acids in tea.
As the characteristic non-protein amino acid with the highest content in tea, theanine is safe and non-toxic, and has various biological activities such as anti-oxidation, immune regulation, anti-aging, and antagonizing cell excitotoxicity caused by excessive glutamic acid. At the same time, L-theanine, as an alkylamine, can activate γ-T immune cells to promote cell proliferation and cytokine secretion.

Test Report

ITEM	STANDARD	TEST RESULT
Assay	≥20.0%	20.06%
Physical & Chemical
Appearance	Brown Yellow powder	Complies
Particle Size	100% pass 80 mesh	Complies
Specific Rotation	+8.0°to +8.5°	+8.3°
Loss on Drying	≤0.5%	0.15%
Loss on Ignition	≤0.4%	0.20
Heavy Metal
Total Heavy Metals	≤10ppm	Complies
As	≤1ppm	Complies
Pb	≤1ppm	Complies
Microbiological Test
Total Plate Count	≤1,000cfu/g	<10cfu/g
Mold and Yeast	≤100cfu/g	<10cfu/g
E.Coli	≤10cfu/g	<0.3cfu/g
Salmonella	Negative	Negative
Staphylococcus	Negative	Negative
Conclusion	Conform with specification
Storage	Store in cool and dry places. Keep away from strong light and heat
Packing	By 25kgs/Drum, inner by double plastic bag
Shelf Life	24 months under the above condition,and in it’s original package

What are the benefits?

Blood pressure regulation
Blood pressure regulation is mainly achieved through the increase and decrease of catecholamines and 5-hydroxytryptamine in the central and peripheral nervous systems. Yokogoshi et al. proved through experiments that the administration of murine theanine can reduce the content of 5-hydroxytryptamine, reduce the synthesis of 5-hydroxytryptamine in the brain and increase its decomposition in the brain. When different doses of theanine were injected into spontaneously hypertensive rats (SHR), the blood pressure decreased, and the degree of decrease showed a dose-response relationship, and a significant decrease in blood pressure could be observed in the high-dose group;

Nervous tension, relaxation and other effects

Terashima et al found that the main receptor for theanine is the brain. After theanine enters the brain through the brain barrier, the neurotransmitter dopamine in the mitochondria of brain cells increases significantly, and dopamine is an important substance that transmits the excitement of brain nerve cells. Its release can greatly affect people's emotions. Furthermore, Yokogoshi et al. It was found that theanine can affect the synthesis and breakdown of serotonin in the brain by using inhibitors of serotonin (serotonin) metabolism. After taking theanine, the content of tryptophan in the brain increased significantly or tended to increase, but the content of serotonin decreased. Theanine might decrease serotonin synthesis and increase its breakdown, or inhibit serotonin release.

Protective effect on brain nerve cells
Glutamic acid is an excitatory neurotransmitter, and its content in nerve cells is maintained at 1mmol-10mmol/L. When cerebral ischemia occurs, due to the interruption of O2 supply in the cells, the generation of intracellular energy substance adenosine triphosphate (ATP) is reduced and gradually exhausted, the nerve cell membrane is separated, and excessive glutamic acid is released outside the cells, and acts on the receptors, making the cells The continuous increase of calcium ion concentration in the body stimulates the activities of various decomposing enzymes, and finally acts on the cells to destroy and die them. Theanine has a competitive protective effect on glutamate receptors, so theanine has a protective effect on brain tissue and can avoid brain nerve cell death caused by cerebral ischemia.

Improve menstrual syndrome
Menstrual syndrome (PMS for short) is a symptom of mental and physical discomfort in women 3 to 10 days before menstruation. Juneja et al. investigated the effect of theanine on PMS improvement, and asked 24 women to take 200mg theanine daily. After two months, the symptoms of PMS were significantly improved, such as headache, low back pain, chest pain, weakness, fatigue, and inability to concentrate. , irritability and other symptoms were improved. Its mechanism still needs to be further studied, and it may be related to the sedative effect of theanine.

Weight loss
After feeding the mice with the feed mixed with 0.028% theanine for 16 weeks, their body weight decreased significantly compared with the control group, and the abdominal fat decreased to 58% of the control group. At the same time, the content of neutral fat and cholesterol in the blood decreased by 32% and 15% respectively, and the cholesterol in the liver decreased by 28%. Therefore, the weight loss effect of tea is the result of the joint action of various components in tea including theanine, which is especially effective in reducing cholesterol in the body.

Anti-fatigue effect
After giving mice different doses of theanine for 30 days, it can significantly prolong the weight-bearing swimming time of mice, reduce the consumption of liver glycogen, and reduce the level of serum urea nitrogen during exercise; it can significantly inhibit the increase of blood lactic acid in mice after exercise, and can Promote the elimination of blood lactic acid after exercise, therefore, theanine has anti-fatigue effect. Its mechanism may be related to that theanine can inhibit the secretion of s-serotonin and promote the secretion of catecholamines (serotonin has an inhibitory effect on the central nervous system, while catecholamines have an excitatory effect).

Application direction

L-Theanine powder, a health food that does not have hypnosis, but can relieve fatigue, lower blood pressure and improve learning and memory ability, is really rare and eye-catching. For this reason, theanine won the research department award at the International Food Raw Materials Conference held in Germany in 1998.

Tea beverage quality improver
At present, due to the limitation of raw materials and processing technology, the tea beverages in our country have poor refreshing taste, and theanine is the main component of tea refreshing taste, and can alleviate the bitterness of caffeine and tea polyphenols. Therefore, in the production process of tea beverages Adding a certain amount of theanine can significantly improve the quality and flavor of tea beverages.

L-Theanine powder

Functional Food Additives
L-Theanine powder has the functions of enhancing the alpha wave intensity in the brain, making people feel relaxed and improving memory, which has been confirmed by human experiments. Therefore, it can be added to food as a functional ingredient to develop a functional food for relieving nervous tension and improving intelligence.

Theanine powder

Flavor improvement effect
Theanine can not only be used as a flavor improver for green tea, but also inhibit the bitterness and astringency in other foods, so as to improve the flavor of foods. Cocoa beverages and barley tea have a unique bitter or astringent taste. Adding sweeteners will have an unpleasant taste. If 0.01% theanine is used instead of sweeteners, the results show that the beverage flavor is greatly improved after adding theanine. Studies have also confirmed that adding it to other foods (coffee, cocoa, ginseng drinks, beer) also has a good effect of improving the flavor, indicating that theanine has broad application prospects in the food industry.

Company introduction and certificates obtained

Shaanxi Yuantai Biotechnology Co., Ltd. was established in 2014, mainly supplying herbal extracts, functional cosmetic raw materials, organic products, etc. We have our own factories, R&D and quality inspection teams, and have the conditions for development, production, and quality assurance. At present, we have obtained ISO9001, ISO22000, HALAL, KOSHER, HACCP, FDA and other certificates. Therefore, the quality of our products is guaranteed, and it is our original intention to bring high-quality products to customers.

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