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L-Theanine

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Introduction:

Product Name

L-Theanine

Appearance

White or quasi-white crystalline powder

CAS

3081-61-6

Molecular formula

C7H14N2O3

Molecular Weight  

174.2

Purity

98.0%min L-Theanine

Sample

Available

L-Theanine is isolated from green tea, is the characteristic amino acid of tea, and is also one of the flavor presenting substances of tea. There are more than twenty kinds of amino acids in tea,l-theanine accounts for about 50% to 60% of the total amino acids in tea. L Theanine is a characteristic amino acid in tea, synthesized by glutamic acid and ethylamine under the action of the enzyme theanine synthase in the root of the tea tree, it is an important substance in the formation of tea flavor, mainly manifested as freshness and sweetness, and it is the main component of tea to produce sweetness. L Theanine is also regarded as the characteristic amino acid of tea. As the highest content of characteristic non-protein amino acids in tea, theanine is safe and non-toxic, with antioxidant, immune regulation, aging, antagonism of glutamate excess and cellular excitotoxicity and other biological activities.


Specification:

Items

Specifications

Results

Conclusion

Character

White or quasi-white crystalline powder

Quasi-white crystalline powder

Qualified

Specific rotation

+7.7°~ +8.5°

+8.1°

Qualified

Solution clarity

Clear and colorless

Clear and colorless

Qualified

Assay (Dry basis)

98.0%~102.0%

99.40%

Qualified

Loss on drying

≤1.0%

0.22%

Qualified

Residue on ignition

≤0.2%

0.16%

Qualified

Chloride

≤0.02%

<0.02%

Qualified

Sulfate

≤0.02%

<0.02%

Qualified

pH

5.0~6.0

5.21

Qualified

Particle size

90% passes through 80 mesh screen

92.1%

Qualified

Heavy Metal

≤10ppm

<10ppm

Qualified

Iron

≤10ppm

<10ppm

Qualified

As

≤2ppm

Not detected

Qualified

Cd

≤1ppm

Not detected

Qualified

Hg

≤0.1ppm

Not detected

Qualified

Mold and yeast

≤100CFU/g

20CFU/g

Qualified

Total Colony Number

≤1000CFU/g

80CFU/g

Qualified

Coliforms

Negative

Not detected

Qualified

Salmonella/25g

Negative

Not detected

Qualified


Function and Application:

1. Theanine can be used as used as a food additive, such as a flavoring agent. It is mainly used as the flavor component of green tea.

2. Theanine has effects such as relaxing nervous tension.

3. L-Theanine has flavor improvement effect, also has the function of enhancing immunity and lowering blood pressure.L-Theanine can promote the learning and memory function of the brain, and effectively enhance the liver detoxification function. In addition, theanine also has a hypotensive effect, L Theanine powder can be made into L-Theanine supplement, such as L-Theanine capsules.

4. Theanine has a certain neuroprotective effect, it can reduce oxidative damage and inflammatory response of nerve cells by regulating intracellular signaling pathways.


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