Product IntroductionL-Theanine
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.
We adopts fermentation process technology and we are the only one manufacturer in China that produces fermented L-theanine.
Product specification L-Theanine
Items Standard
Appearance White to off-white crystal or crystalline powder
Solution colorless
pH 5.0～6.0
Specific rotation +7.5°to+8.5°
Loss on drying Not more than 1.0%
Residue on ignition Not more than 0.2%
Heavy metals（Pb） Not more than 20ppm
Chloride（Cl） Not more than 0.02%
Arsenic（As） Not more than 4ppm
Iron（Fe） Not more than 10ppm
Chiral purity ≥99.5%
Assay 98.0～102.0%
Type Fermented L-theanine
