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Theanine L-Theanine 3081-61-6
L-Theanine powder food grade N-gamma-ethyl-L-glutamine
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
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