Green Tea Extract 40–98% Polyphenols

Green Tea Extract is a standardized botanical extract produced from the leaves of Camellia sinensis (L.) Kuntze of the Theaceae family. The ingredient concentrates the naturally occurring polyphenol fraction of green tea into an extract powder for dietary supplements, functional nutrition, food and beverage development, and other commercial botanical formulations.

Essencefield supplies Green Tea Extract standardized to 40–98% total polyphenols. The range covers moderate- to high-concentration extract grades, with 98% total polyphenols representing the high-assay commercial grade. Total polyphenol content describes the combined phenolic fraction and is analytically distinct from total catechins, individual EGCG concentration, and caffeine content.

SKU: BOT-STX-0006 Categories: Standardized Extracts, Polyphenol & Flavonoid Extracts Tags: Camellia sinensis, Catechins, Flavan-3-ols, Flavonoids, Green Tea

Ingredient Profile & Common Uses

Green tea extract is derived from Camellia sinensis leaves rather than being a simple milled tea-leaf powder. Extraction and concentration increase the proportion of soluble tea constituents relative to the original botanical material. It also differs commercially from highly purified EGCG ingredients because a polyphenol-standardized extract is defined by its combined phenolic fraction rather than the purity of one isolated catechin.

The 40–98% range provides different levels of polyphenol standardization within the same ingredient family. Higher-assay material allows formulators to deliver a defined polyphenol quantity with a lower extract inclusion level. Grade selection can also take into account catechin profile, caffeine content, sensory intensity, and the requirements of the intended finished-product format.

Green tea extracts are used in concentrated dietary supplements, botanical nutrition systems, powdered formulations, functional foods, and selected beverages. Their catechin-rich composition contributes characteristic bitterness and astringency, making sensory intensity, inclusion level, and formulation format important considerations during product development.

Application Areas

Dietary Supplements

Used in capsules, tablets, sachets, and other concentrated botanical products where a defined total-polyphenol specification supports ingredient standardization and controlled formulation input.

Powdered Nutrition & Premixes

Suitable for dry beverage bases, stick packs, powder blends, and premixes. High-assay grades require appropriate premixing and blend-uniformity control at relatively low inclusion levels.

Functional Foods & Beverages

Applied in functional drinks and selected food systems where standardized green tea polyphenols provide a defined botanical input. Taste masking and color compatibility are common development considerations.

Personal Care Formulations

Tea-derived polyphenols are also used in selected cosmetic and personal-care formulations where Camellia sinensis extract provides a defined botanical ingredient profile.

Typical Specifications

Parameter	Specification / Reference
Product Name	Green Tea Extract
Botanical Name	Camellia sinensis (L.) Kuntze
Botanical Family	Theaceae
Plant Part	Leaf
Ingredient Type	Standardized Botanical Extract
Product Form	Extract Powder
Standardization Marker	Total Polyphenols
Available Polyphenol Content	40–98%
Primary Commercial Grade	98% Total Polyphenols
Characteristic Chemical Family	Tea Polyphenols / Flavan-3-ol Catechins
Characteristic Catechins	EGCG · EGC · ECG · EC
Reference CAS	84650-60-2

Marker Compounds & Standardization

Tea polyphenols are a multi-component phytochemical fraction rather than a single chemical substance. In green tea, an important part of this fraction consists of flavan-3-ol catechins, particularly epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicatechin gallate (ECG), and epicatechin (EC). Their relative proportions contribute to the analytical profile of the extract.

Total polyphenols, total catechins, EGCG, and caffeine represent different specification dimensions. A product standardized to 98% total polyphenols should therefore not be interpreted as 98% catechins or 98% EGCG. Highly purified EGCG materials belong to a different commercial specification category.

Colorimetric and UV-based approaches are commonly used for total-polyphenol determination, while chromatographic methods such as HPLC allow individual catechins and caffeine to be evaluated separately. This distinction is important when comparing extracts that carry similar total-polyphenol specifications but differ in their detailed constituent profiles.

Technical & Quality Considerations

Analytical review should establish botanical identity, verify the declared total-polyphenol assay, and evaluate the chromatographic catechin profile where individual markers form part of the purchasing specification. Caffeine requires separate assessment when conventional, reduced-caffeine, or decaffeinated positioning is relevant. Keeping these analytical dimensions separate improves supplier comparison and formulation consistency.

Concentrated green tea extracts can contribute noticeable bitterness, astringency, and tea-derived coloration. Catechins are also sensitive to oxidation and formulation environment, while prolonged heat exposure and alkaline conditions can accelerate chemical change. Liquid and beverage systems therefore require particular attention to stability, sensory development, and processing conditions.

During scale-up, dry formulations should be evaluated for premixing, distribution at low inclusion levels, blend uniformity, capsule filling, and compression behavior. Beverage systems require evaluation of wetting, dispersion, pH, sedimentation, oxygen exposure, heat treatment, color, and flavor impact. These factors should be assessed in the complete formulation rather than predicted from total-polyphenol assay alone.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.