Theanine (L-theanine) is a unique free amino acid in tea, and theanine is glutamic acid γ- Ethylamide. Theanine content varies with the type and location of tea. Theanine accounts for 1% to 2% of dry tea. Theanine is a white needle, soluble in water. It has a sweet and refreshing taste and is the flavor ingredient of tea.
Used in functional foods and health products, commonly in oral capsules and liquids.
Quality modifier for beverages (tea, wine, coffee) to improve flavor and quality.
Excellent moisturizing effect for skin care; promotes collagen production and resists wrinkles.
| Item | Standard | Analysis Data |
|---|---|---|
| Description | White to yellowish White crystals | Conforms |
| Solution clarity | Clear and colorless | Clear and colorless |
| Assay | 98.0~102.0% | 99.50% |
| PH | 4.5-6.0 | 5.42 |
| Loss on drying | ≤1.0% | 0.26% |
| Residue on ignition | ≤0.20% | 0.08% |
| Specific Rotation | +7.5° - +8.5° | +7.70° |
| Heavy metals | ≤10ppm | <10ppm |
| Total Plate Count | ≤1000CFU/g | <1000CFU/g |
| Salmonella | Negative in 25g | Conforms |
Advanced precision instruments are utilized to independently control product content, pesticide residue, physical and chemical properties, microorganisms, heavy metals, and other quality indicators. Our goal is zero complaints.