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L-Theanine is a unique free amino acid in tea, and theanine is glutamic acid γ-ethylamide. Theanine content varies with the variety and location of tea. Theanine accounts for 1% to 2% of the dry tea. Theanine is a white needle, soluble in water. With sweet and refreshing taste, is the taste of tea components.
| CAS No | 3081-61-6 |
| Shelf Life | 2 Years |
| EINECS No | 221-379-0 |
| Molecular Formula | C7H14N2O3 |
| Items | Standards | Results |
| Physical Analysis | ||
| Description | White Powder | Complies |
| Assay | 99% | 99.21% |
| Mesh Size | 100 % pass 80 mesh | Complies |
| Ash | ≤ 5.0% | 2.85% |
| Loss on Drying | ≤ 5.0% | 2.65% |
| Chemical Analysis | ||
| Heavy Metal | ≤ 10.0 mg/kg | Complies |
| Pb | ≤ 2.0 mg/kg | Complies |
| As | ≤ 1.0 mg/kg | Complies |
| Hg | ≤ 0.1mg/kg | Complies |
| Microbiological Analysis | ||
| Residue of Pesticide | Negative | Negative |
| Total Plate Count | ≤ 1000cfu/g | Complies |
| Yeast&Mold | ≤ 100cfu/g | Complies |
| E.coil | Negative | Negative |
| Salmonella | Negative | Negative |
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