L-Theanine Powder 20/98/99% (Tea Extract, )とは？用途・使用量・代替品・規格
最終更新: 2026-11-14 · CAS 3081-61-6 · 食品・飼料グレード
- 概要
- 名称
- L-Theanine Powder 20/98/99% (Tea Extract, )
- CAS 番号
- 3081-61-6
- グレード
- 食品・飼料グレード
- 認証
- ISO 9001 · ISO 22000 · HACCP · FAMI-QS · Kosher · Halal · GMP · SGS
- 用途分野
- 3
- 書類
- COA · TDS · SDS
概要
L-Theanine (CAS No.: 3081–61–6) is a naturally occurring non-protein amino acid, chemically known as N-ethyl-γ-glutamine, with molecular formula C7H14N2O3 and molecular weight 174.20. First isolated from Gyokuro green tea by Japanese researchers, L-Theanine is a characteristic amino acid of Camellia sinensis, accounting for approximately 60% to 70% of total free amino acids in tea leaves and 1% to 2% of dry tea weight. L-Theanine imparts the savory, sweet taste unique to tea and is an important indicator of tea quality. L-Theanine appears as white crystalline powder, odorless, with a slightly sweet distinctive taste, soluble in water, with a decomposition temperature of 214–215°C. L-Theanine can cross the blood-brain barrier and functions by modulating neurotransmitter levels including GABA, dopamine, and serotonin, promoting alpha brain wave activity to induce a state of "relaxed alertness" without causing drowsiness. Medical research has confirmed that L-Theanine effectively reduces stress and anxiety without causing drowsiness. Most people feel its effects within 30–60 minutes of consumption, with effects lasting 8 to 12 hours.
As a single chemical entity, L-Theanine's efficacy primarily stems from its precise regulation of neurotransmitter systems. Once ingested, L-Theanine crosses the blood-brain barrier and acts through the following mechanisms:
GABA Modulation: L-Theanine enhances GABA activity, promoting natural calm and relaxation.
用途
Food & Beverage
L-Theanine is a core ingredient in functional beverages and RTD teas. Its well-documented synergy with caffeine—mitigating caffeine's stimulatory…
Dietary Supplements
L-Theanine is a core functional ingredient in the global market for stress management and cognitive enhancement. Key benefits include:
Cosmetics and Personal Care
L-Theanine is used in skincare products as a soothing agent and antioxidant, helping protect skin cells from oxidative stress damage. 4.4…
規格
| Specification Range/Index | Test Method | |
|---|---|---|
| 外観 | White to off-white crystalline powder | Visual inspection |
| Content (on dry basis) | 98.5% – 101.5% | HPLC |
| Specific Rotation | +7.0° to +9.0° (c=5, H2O) | Polarimetry |
| Loss on Drying | ≤1.5% | Thermogravimetric method |
| Residue on Ignition | ≤0.1% | High-temperature ignition |
| pH (5% aqueous solution) | 4.5 – 6.0 | pH meter |
| Chlorides (as Cl) | ≤0.02% | Turbidimetric method |
| Sulfates (as SO42−) | ≤0.02% | Turbidimetric method |
| Lead (Pb) | ≤0.5 mg/kg | ICP-MS/AAS |
| Arsenic (As) | ≤0.5 mg/kg | ICP-MS/AAS |
| Cadmium (Cd) | ≤0.2 mg/kg | ICP-MS/AAS |
| Mercury (Hg) | ≤0.2 mg/kg | ICP-MS/AAS |
| Total Aerobic Microbial Count | ≤1000 CFU/g | Plate count method |
| Yeasts & Molds | ≤100 CFU/g | Plate count method |
| E. coli | Not detected | Culture method |
| Salmonella (25g) | Not detected | Culture method |
| Packaging Specifications | 1 kg/bag, 5 kg/bag, 25 kg/drum | — |
| 保管期限 | 24 months | — |
| 4. Product Application Fields |
包装と保管
- 荷姿： 25kg net fiber drum with double PE liner.
- サンプル： 100-500g free sample available.
- 保管： Keep in tightly closed packaging, cool, dry, well-ventilated. Protect from light and moisture.
- 保管期限： 24 months from production date.
品質と認証
全ロックは社内QCラボで検査されます。出荷毎にCOA、TDS、SDSをご提供します。
規制とコンプライアンス
EU
EU法規およびFAMI-QS規格に準拠。
米国
FDAおよびAAFCOの要求事項を満たします。
中国
中国農業部（MOA）法規に基づき登録済み。
国際
コーシャ、ハラール、ISO認証取得。FTA書類対応可能。
安全性と取扱い
- 危険物分類： 通常、非危険物です。詳細はSDSを参照。
- 保管： 室温、乾燥、密閉。強酸化剤を避けてください。
- 輸送： 非危険貨物。通常の海上／航空輸送。
- SDS： ご要望に応じて sales@xadditive.cn.
よくある質問
最小ロット（MOQ）は？
試用は1kg、通常注文は25kgが最小ロットです。無料サンプルあり。
保管期限は？
適切に保管された場合、製造日から24ヶ月。
認証は？
ISO 9001、ISO 22000、HACCP、FAMI-QS、コーシャ、ハラール、COA、SDS、TDS。
見積りの依頼方法は？
メール sales@xadditive.cn with your requirement. Reply within 30 minutes.