Green tea extract

Technical Specifications

Shaanxi Rebecca Biotechnology is a professional manufacturer integrating R&D, standardized production and global supply service for botanical extracts. We adopt low-temperature processing and precision grinding technology to fully protect heat-sensitive catechins and avoid active ingredient loss during production.

Equipped with complete HPLC, ICP-MS and GC-MS testing systems, we conduct full-index inspection on every batch of Green Tea Extract, covering heavy metals, pesticide residues, microbial indicators and solvent residues to fully meet EU and international food cosmetic safety standards. Certified with ISO22000, HACCP, HALAL and KOSHER, we provide complete supporting documents including COA, HPLC chromatograms and MSDS. We support customized specifications and packaging, with stable global logistics to ensure fast and safe delivery, greatly simplifying your product registration and customs clearance procedures.

We only choose premium fresh tea leaves from standardized ecological plantations in the main tea-producing regions of Fujian, Zhejiang, and Hunan. In order to exclude contaminants like tea stems and dead leaves, raw materials are gathered during the ideal growth cycle and then manually sorted and mechanically screened.

Strict pre-production testing is performed on all raw materials to check for aflatoxins, pesticide residues, and heavy metals. To prevent cross-contamination, we use different production lines for regular and decaffeinated grades. In order to achieve full chain traceability and enable customer quality audits and market filing, complete production records are kept from the purchase, processing, and purification of raw materials to the packaging of the final product.

Excellent solubility makes this tea extract ideal for drinks, nutritious liquids, and cosmetic serums. It dissolves rapidly in ethanol and warm water to create clear, transparent solutions. During application, both standard and 200-mesh ultrafine powder spread uniformly with little precipitation.

The substance retains strong thermal stability below 55°C for stable application; prolonged exposure to high temperatures will degrade EGCG. Light-proof sealed storage and mild acidic formulation systems (pH 3.0–6.0) are advised to efficiently retain polyphenol activity and prevent oxidation discolouration since it is sensitive to light and alkaline environments. The shelf life can last up to 24 months provided it is properly sealed and kept in cold, dry, dark circumstances.

We adopt full low-temperature controlled production to maximize the retention of active tea polyphenols and EGCG:

Fresh tea leaves are blanched and air-dried below 55°C to lock active ingredients.

Food-grade ethanol-water countercurrent gradient extraction is applied to improve polyphenol yield without harmful solvent residues.

Multiple precision filtration removes crude fiber and micro-impurities, followed by macroporous resin selective enrichment to standardize active content.

Optional professional decaffeination treatment is available for low-caffeine formula requirements.

After low-temperature vacuum concentration, the liquid concentrate is made into fine powder through aseptic spray drying.

Finished powder is sieved and blended according to different mesh standards for tablets, capsules and liquid formulations.

Finally, all products are filled with nitrogen and sealed in light-proof moisture-proof packaging.

Real-time temperature monitoring and online HPLC sampling are implemented throughout the process to ensure stable batch-to-batch quality of Green Tea Extract.

Our production strictly follows unified food and cosmetic grade dual standards. Each batch of finished products undergoes comprehensive testing: ICP-MS heavy metal detection, GC-MS 190+ pesticide residue screening, full microbial inspection and solvent residue verification. Only products that pass all indicators can be packaged and delivered.

We support third-party authoritative testing and provide complete batch test documents and certification files. Strict quality management from raw material access to finished product delivery effectively eliminates quality fluctuations, providing reliable quality guarantees for long-term bulk cooperation and global product sales.

Our standard packaging adopts nitrogen-filled light-proof aluminum foil inner bags matched with 25kg fiber drums, which effectively isolate light, oxygen and moisture to protect product activity. We support personalized customization, including small-batch packaging and private label services to meet laboratory research, trial production and commercial mass production needs.

We provide flexible global logistics solutions: express delivery for sample orders, air freight for urgent orders, and sea freight for large-bulk bulk shipments. Every shipment is equipped with complete customs clearance documents, with real-time logistics tracking to ensure timely and intact delivery of goods.

Q1: What specification grades can you provide?

A1: We supply multiple mainstream grades: total polyphenols 50%/80%/90% and EGCG 50%/70%/80%, with both regular and decaffeinated options available for different formulation needs.

Q2: How do you guarantee EGCG stability during production?

A2: The whole production process is controlled below 55°C with full light-proof operation, effectively avoiding EGCG thermal degradation and photo-oxidation to retain maximum active activity.

Q3: What certification and test documents are available?

A3: We provide ISO22000, HACCP, HALAL, KOSHER certification copies, as well as batch-specific COA, HPLC chromatogram and MSDS documents to support global registration and customs clearance.

Q4: Is the extract suitable for beverage pasteurization?

A4: It remains stable under 55°C. For high-temperature pasteurization, please control short heating time to prevent EGCG activity loss.

Q5: What are your MOQ and delivery time?

A5: The sample MOQ is 1kg. Standard bulk orders are delivered within 7–10 working days. Long-term cooperative customers enjoy priority production and stable preferential prices.

Contact Us Today

If you need product technical datasheets, sample testing, batch quotations or customized ingredient specifications, feel free to contact our professional sales and technical team at information@sxrebecca.com. We provide one-stop procurement and technical support to help your formulas achieve better performance with high-quality Green Tea Extract.