Complaint
| Latin Name: | Camellia sinensis (L.) O. Ktze. |
| Plant Source: | Leaf |
| Appearance: | Yellow Brown or White Powder |
| CAS: | 3081-61-6 |
| Purity: | 10%,20%,30% 40%, 50%,99%(HPLC) |
| Item | Specification | Results | Methods |
| Marker Compound | 40% L-theanine | 40.45% | HPLC |
| Appearance & Color | Yellow Brown powder | Conform | GB5492-85 |
| Odor & Taste | Characteristic | Conform | GB5492-85 |
| Plant Part Used | Leaf | Conform | |
| Extract Solvent | Water | Conform | |
| Bulk Density | 0.4-0.6g/ml | 0.45-0.60g/ml | |
| Mesh Size | 80 | 100% | GB5507-85 |
| Loss on Drying | ≤5.0% | 3.26% | GB5009.3 |
| Ash Content | ≤5.0% | 1.82% | GB5009.4 |
| Solvent Residue | EU Directive 2009/32/EC | Conform | GC |
| Benzoapyrene/PAHs(ppb) | <10ppb/<50ppb | Conform | GC-MS |
| Pesticides | EP 7.0 | Conform | GC-MS |
| Heavy Metals | |||
| Total Heavy Metals | ≤10ppm | <3.0ppm | AAS |
| Arsenic (As) | ≤1.0ppm | <0.1ppm | AAS(GB/T5009.11) |
| Lead (Pb) | ≤1.0ppm | <0.5ppm | AAS(GB5009.12) |
| Cadmium | <1.0ppm | Not Detected | AAS(GB/T5009.15) |
| Mercury | ≤0.1ppm | Not Detected | AAS(GB/T5009.17) |
| Microbiology | |||
| Total Plate Count | ≤1000cfu/g | <100 | GB4789.2 |
| Total Yeast & Mold | ≤25cfu/g | <10 | GB4789.15 |
| Total Coliform | Negative in 10g | Not Detected | GB/T4789.3-2003 |
| Salmonella | Negative in 10g | Not Detected | GB4789.4 |
| Staphylococcus | Negative in 10g | Not Detected | GB4789.1 |
| Pseudomonas aeruginosa | Negative in 10g | Not Detected | |
Theanine may help reduce the negative effects of stress, according to a small study published in Biological Psychology in 2007. In an experiment involving 12 people, researchers found theanine-treated participants were less likely to experience an increase in heart rate when performing a stressful task.
Taking green-tea-derived theanine and antioxidants in supplement form may help prevent theflu, suggests a study published in BMC Complementary and Alternative Medicine in 2011. Every day for five months, the study's 197 participants took either a placebo or a capsule containing theanine and catechins (a class of antioxidants found in green tea).
Theanine may help relieve depression, according to an animal-based study published inPhytotherapy Research in 2011. In tests on mice, scientists discovered that theanine produced an "antidepressant-like effect."
