CAS No.: | 3081-61-6 |
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Formula: | C7h14n2o3 |
EINECS: | 221-379-0 |
Packaging Material: | Sealed Bag |
Storage Method: | Cool and Dry |
Shelf Life: | >12 Months |
Samples: |
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Theanine is an abundant non-protein derived amino acid that was first isolated from green tea leaves in the late 1940s by E.K Herb , L-theanine has been studied as a food additive and functional food in relation to human nutrition.
Test items | Standard | Result |
Appearance | White powder | White powder |
Assay (HPLC) | 98.0 - 102.0% | 99.25% |
Specific rotation (a)D20 (C=1 , H2O ) |
+7.7°+8.5° | 8.05° |
Solubility (1.0g/20ml H2O) | Clear Colorless | Clear Colorless |
Chloride (CL) | ≤ 0.02% | <0.02% |
Loss on drying | ≤1.0% | 0.35% |
Residue on ignition | ≤0.2% | 0.12% |
pH | 5.0 - 6.0 | 5.13 |
Heavy metals (as Pb) | ≤10 ppm | <10ppm |
Arsenic ( as As) | ≤1 ppm | <1ppm |
Total Plate Count | < 1000cfu/g | Conforms |
Yeast and Mold | <100cfu/g | Conforms |
Salmonella | Absent | Conforms |
E.Coli | Absent | Conforms |
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