Green Tea Extract L Theanine

 

Green tea extract l theanine (sometimes referred to as "L-theanine") is an amino acid found naturally in green tea. Also available in supplement form, theanine is said to offer a number of health benefits.

 

Proponents claim that theanine can help with the following health problems:

 

• Anxiety
• Depression
• High blood pressure
• High cholesterol
• Insomnia
• Stress

 

Theanine is also purported to increase concentration, promote weight loss, and boost the immune system.

 

Product Name	Theanine
Purity	99%
CAS NO.	3081-61-6
MF	C7H14N2O3

 

Boiling point: 427.1 °C at 760 mmHg

Flash point: 212.1 °C

Refractive index: 8 ° (C=5, H2O)

Density: 1.171

 

 

Analysis	Specification	Result	Test Method
Physical Description
Appearance	White powder	White powder	Visual
Solubility (1.0g/20ml H2O)	Clear Colorless	Clear Colorless	Visual
PH	5.0-6.0	5.14	CHP2020
Specific rotation(a)D20 (C=1 , H2O )	+7.7° ~ +8.5°	+8.02°	CHP2020
Melting point	202-215℃	202.5-203℃	CHP2020
Chemical Tests
Assay (HPLC)	98.0-102.0%	99.23%	HPLC
Chloride(Cl)	0.02% Max	<0.02%	CHP2020
Residual on ignition	0.2% Max	0.03%	CHP2020
Loss on drying	0.5% Max	0.21%	CHP2020
Heavy metals (as Pb)	10.0ppm Max	<10.0ppm	CHP2020
Arsenic (as As)	1.0ppm Max	<1.0ppm	CHP2020
Microbiology Control
Total plate count	1000cfu/g Max	<1000cfu/g	CHP2020
Yeast & Mold	100cfu/g Max	<100cfu/g	CHP2020
E. Coli	Absent	Absent	CHP2020
Salmonella	Absent	Absent	CHP2020
Conclusion	Complies with the JP2000 Standard.
General Status	Non-GMO, ISO Certificated.
Packing and Storage
Packing: Pack in paper-carton and two plastic-bags inside.
Shelf life: 2 year when properly stored.
Storage: Store in a well-closed place with constant low temperature and no direct sun light.

 

 

1. Stress relief:

 

(1) Activate the GABAergic system

It can promote the synthesis of γ-aminobutyric acid (GABA) by upregulating the activity of glutamate decarboxylase and reduce the overexcitation of the amygdala.

 

(2) Dopamine regulation

Green tea extract l theanine can increase the concentration of 5-HT and DA in the prefrontal cortex and improve depressive tendencies.

 

2. Optimization of cognitive function:

 

(1) Alpha brain wave induction
Studies have found that it can increase the amplitude of alpha waves by 40-50% within 30 minutes, creating a state of "focused relaxation" and increasing the speed of complex task response by 15%.

 

(2) Blood-brain barrier permeability
It competes with glutamate transporters, inhibits excessive neuronal excitation, and prevents cognitive decline caused by glutamate toxicity.

 

3. Improved sleep quality
Studies have found that a dose of 200mg can shorten the latency to sleep by 22% without affecting the structure of REM sleep.

 

 

4. Regulation of glucose and lipid metabolism:

 

(1) Improvement of insulin sensitivity

Green tea extract l theanine can activate the AMPK pathway and promote the translocation of GLUT4 in skeletal muscle.

 

(2) Induction of fat browning
It can upregulate the mitochondrial production of white adipocytes by UCP1 protein. Daily intake of 300 mg can increase the basal metabolic rate by 5%.

 

5. Enhanced immune defense:

 

(1) Enhanced NK cell toxicity
Continuous intake for 8 weeks increased the natural killer cell activity index from 25% to 38%.

 

(2) γδ-T cell activation
Green tea extract l theanine can promote the secretion of IFN-γ by intestinal Peyer's patch lymphocytes, increasing the antibody titer of influenza vaccine by 2.1 times.

 

6. Control blood pressure:

 

(1) Improvement of endothelial function
Promoting the release of nitric oxide through eNOS phosphorylation, the average systolic blood pressure of hypertensive patients is reduced by 8 mmHg.

 

(2) ACE inhibitory effect
Competitive inhibition of angiotensin converting enzyme activity, the effect is equivalent to 23% of 10 mg of enalapril.

 

7. Antioxidant synergistic defense:

 

(1) Free radical scavenging system
Green tea extract l theanine forms a redox pair with EGCG, and the scavenging rate of hydroxyl radicals is increased from 65% of a single component to 89%.

 

(2) Metal ion chelation
Preferentially binds to Fe²⁺/Cu⁺, blocks the Fenton reaction, delays the oxidation process of LDL, and reduces the area of ​​atherosclerotic plaques by 34%.

 

 

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