China Green Tea Extract L-Theanine, Theanine 99%, Find details about China Theanine, L Theanine from Green Tea Extract L-Theanine, Theanine 99%
L-Theanine
L-theanine was found in tea leaves and certain species of fungi, l-theanine is an amino acid. Unlike most amino acids, which build proteins for muscles, theanine primarily benefits cognitive health, promoting relaxation, healthy sleep, and focus.
Test items | Standard |
Appearance | White powder |
Assay (HPLC) | 98.0 - 102.0% |
Specific rotation (a)D20 (C=1 , H2O ) | +7.7°+8.5° |
Solubility (1.0g/20ml H2O) | Clear Colorless |
Chloride (CL) | ≤ 0.02% |
Loss on drying | ≤1.0% |
Residue on ignition | ≤0.2% |
pH | 5.0 - 6.0 |
Heavy metals (as Pb) | ≤10 ppm |
Arsenic ( as As) | ≤1 ppm |
Total Plate Count | < 1000cfu/g |
Yeast and Mold | <100cfu/g |
Salmonella | Absent |
E.Coli | Absent |
Application of L-Theanine
L-Theanine Storage