Standardized Green Tea (Camellia sinensis) Extract with EGCG 50% or 98% specifications. Sourced through qualified production partners for dietary supplement and functional beverage manufacturers.
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Per GTE-001 (Verified 2026-09-20):
| Specification Level | Active Marker |
|---|---|
| Green Tea Extract EGCG 50% (Polyphenols 60%) | HPLC / UV |
| Green Tea Extract EGCG 98% (Premium) | HPLC |
| Decaffeinated Green Tea Extract EGCG 50% / 98% | HPLC (≤ 0.5% caffeine) |
Specifications subject to product requirements and destination-market regulations.
| Botanical source | Camellia sinensis (tea leaf) |
| Part used | Leaf |
| Active marker | EGCG (Epigallocatechin gallate, polyphenol) |
| Form | Brown to light yellow fine powder |
| CAS No. | 989-51-5 (EGCG) |
| Test Item | Specification | Method |
|---|---|---|
| Appearance | Brown to light yellow fine powder | Visual |
| Odor & Taste | Characteristic, slightly astringent | Organoleptic |
| EGCG Assay | ≥ 50.0% or ≥ 98.0% (per spec) | HPLC |
| Total Polyphenols | ≥ 60.0% (for EGCG 50%) | UV (Folin-Ciocalteu) |
| Caffeine Content | ≤ 0.5% (decaf) / ≤ 12% (regular) | HPLC |
| Loss on Drying | ≤ 5.0% | USP <731> |
| Heavy Metals (Pb/As/Cd/Hg) | ≤ 3/1/1/0.1 ppm | ICP-MS |
| Total Plate Count | ≤ 1,000 CFU/g | USP <2021> |
| Yeast & Mold | ≤ 100 CFU/g | USP <2021> |
| E. coli / Salmonella | Negative | USP <2022> |
All specifications subject to product specification and destination-market requirements.
The 50%/98% difference reflects EGCG content measured via HPLC. 98% is positioned for premium applications requiring high-purity EGCG. The 50% grade also contains other tea polyphenols.
Decaffeinated Green Tea Extract has caffeine content reduced to ≤ 0.5% (vs ≤ 12% for regular). It is suitable for caffeine-sensitive applications.
Green Tea Extract is commonly combined with L-Theanine (2:1 ratio for focus formulations), Caffeine, and other antioxidant ingredients. We recommend consulting with your formulation team.
Green Tea Extract is permitted as a food supplement ingredient in the EU. Note: EU novel food regulation may apply to highly purified EGCG. Specific regulatory status depends on intended application and labeling.
EGCG content is quantified via HPLC per USP method. Total polyphenols are measured via UV (Folin-Ciocalteu method).
Standard MOQ is 25 kg. Smaller quantities (5-10 kg) are available for evaluation.
Yes. Custom specifications (e.g., specific EGCG content, decaffeinated, packaging) can be discussed with our coordination team.
Standard documentation includes COA, MSDS, allergen statement, Non-GMO statement. Additional documentation available upon request from production partners.
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Data marked as "typical" reflects industry standards; specific values vary by supplier and batch. Documentation including COA, MSDS, allergen, and Non-GMO documentation is available upon request from production partners.
About Nourish Ingredients: We are a China-based sourcing partner for botanical extracts and nutraceutical ingredients. We coordinate supply for international brands — from specification matching to delivery. Production partners maintain FSSC 22000, BRCGS, EU Organic, USDA Organic, FAMI-QS certifications. Documentation available upon request.
For ingredient sourcing inquiries: ashely@nourishingr.com
Reviewed by: Nourish Ingredients Editorial Team Version: 2.3 Last updated: 2026-09-20
| Product Name | Green Tea Extract (Tea polyphenols / EGCG) |
|---|---|
| Latin Name | Camellia sinensis |
| Main Specs | EGCG 50% / 98% |
Industry-standard testing indicators. Values vary by specification grade.
Specification and COA available on request.
Application and formulation guidance available on request.
