Wholesale Black Tea Polyphenols Factory & Factories

Active Ingredient Portfolio

Featured Standardized Botanical Extracts

Explore our laboratory-verified extracts formulated to rigid USP, EP, and FCC compendial standards for direct global procurement.

Technical Monograph

Chemistry, Potency & Phytochemical Profile of Black Tea Polyphenols

A rigorous examination of oxidative fermentation, enzymatic biotransformation, and molecular standardization from bulk Camellia sinensis leaf to high-purity theaflavin powder.

Enzymatic Polymerization

Black tea polyphenols represent complex bio-transformed flavonoids formed via the polyphenol oxidase (PPO) and peroxidase catalyzed oxidative condensation of native catechins (specifically EGCG, EGC, ECG, and EC). This natural industrial enzymatic reaction converts monocyclic flavan-3-ols into distinct polycyclic benzotropolone scaffolds: Theaflavins (TF1, TF2A, TF2B, TF3) and high-molecular-weight Thearubigins.

Standardized Assays & HPLC

Unlike basic whole-leaf dry crude extracts, wholesale pharmaceutical-grade black tea extract requires explicit standardization. We isolate compounds quantifying: Total Polyphenols 20% to 90% (UV-Vis), with customized enrichment delivering Total Theaflavins from 10% up to 40% (HPLC), preserving pure Theaflavin-3,3'-digallate ratios critical for metabolic lipid regulation and targeted nutraceutical mechanisms.

Stability & Aqueous Clarity

Polymerized black tea phenolics undergo deep purification via continuous macroporous adsorption resin columns. This processing strips lipophilic waxes, bound chlorogenic acids, and harsh tannins, producing a micro-fine powder characterized by instant, crystal-clear cold-water solubility (CWS) without cloudiness, phase sedimentation, or bitter colloidal astrigency.

Standard Commercial Assay & Physical Specifications (Certificate of Analysis Baseline)

Test Parameter	Standard Specification (Assay Options)	Analytical Methodology	Regulatory Reference
Total Black Tea Polyphenols	≥ 40.0% / ≥ 60.0% / ≥ 80.0%	UV-Vis Spectrophotometry	ISO 14502-1 / In-House Validated
Total Theaflavins (TF1+TF2+TF3)	≥ 10.0%, 20.0%, 40.0%	UHPLC-DAD / Reversed Phase HPLC	European Pharmacopoeia (Ph. Eur.)
Caffeine Content	Decaffeinated (<0.5%) or Standard (5.0 - 8.0%)	HPLC Method	USP <621> Chromatography
Solvent Residue	Ethanol & Pure Water Only (< 5000 ppm)	GC-Headspace (FID)	USP <467> Class 3 Criteria
Heavy Metals (Pb, As, Cd, Hg)	Pb <1.0 ppm, As <1.0 ppm, Cd <0.5 ppm, Hg <0.1 ppm	ICP-MS Matrix Atomization	EU Regulation (EC) 1881/2006
Pesticide Residues	Compliant with EU Multiresidue Limits (500+ Screen)	GC-MS/MS & LC-MS/MS	Regulation (EC) No 396/2005

Factory Integration

China Factory Supply Chain & Scaled Agronomic Infrastructure

How direct upstream origin integration and continuous countercurrent extraction technology deliver an insurmountable margin and security profile for overseas importers.

GAP Certified Plantations

Direct supply arrangements with tea-growing belts across Sichuan, Yunnan, and Zhejiang ensure stable non-GMO Camellia sinensis access. Strict agricultural control limits pesticide usage right from sprouting.

Countercurrent Tech

Continuous automated dynamic countercurrent extraction lines maximize polyphenol yield under vacuum low-temperature conditions, minimizing thermal degradation while maintaining throughput of over 50 metric tons monthly.

In-House Lab Release

QC facilities house Agilent 1260/1290 UHPLCs, Shimadzu GC-MS/MS, and Dionex instrumentation. Every shipment releases with complete assay, pesticide residue, microbiological, and solvent documentation.

Tiered Factory Audit Ready

Operational facilities hold ISO 9001, ISO 22000, HACCP, cGMP, and Kosher/Halal certifications, facilitating seamless vendor qualification by enterprise Quality Assurance and Regulatory Affairs (QA/RA) teams.

1,200+

Metric Tons Raw Leaf Capacity / Year

100%

Seed-to-Shelf Audit Traceability

< 0.5%

Caffeine Level in Decaf Grades

48 Hrs

Standard Sample Dispatch Response

Global Trade & Regulatory

Localized Compliance, Tariffs & International Formulation Assurance

Overcoming cross-border technical barriers to trade across North America, the European Union, the United Kingdom, and Asia-Pacific markets.

United States: FDA & FSMA Alignment

Materials intended for US dietary supplements align directly with 21 CFR Part 111 cGMP frameworks. We furnish complete documentation sets including Food Safety Plans (HARPC compliance), allergen declarations, Non-GMO statements, California Proposition 65 heavy metal attestations, and clean GRAS dossiers for functional beverage infusion.

European Union: EFSA & Multiresidue Limits

Exporting tea extracts to Europe demands extreme vigilance concerning environmental pesticide residues, perchlorate, chlorate, and Pyrrolizidine Alkaloids (PAs). Our European-bound inventory undergoes routine 500+ analyte testing at Eurofins/SGS certified partner labs to guarantee compliance with EC No 396/2005 and Novel Food thresholds.

Supply Assurance & DDP Terms

Navigating HS Codes (such as 1302.19) and import tariffs can create unpredictability for factory buyers. UniCare coordinates sea and air shipments under Incoterms 2020 including CIF, FOB, and DDP (Delivered Duty Paid), executing customs pre-clearance, port drayage, and inland warehouse buffer stocking in target destination markets.

Formulation Engineering

Localized Application Scenarios & Market Growth Drivers

Market expansion of functional black tea compounds across supplements, functional RTD beverages, and clean-label dermo-cosmetics.

Ready-to-Drink (RTD) Beverages

Consumer pivot away from artificial coloring and synthetic stimulants has accelerated demand for water-soluble black tea polyphenol bases. Standardized high-theaflavin powders deliver amber optical hue, natural mild tea astringency, and authentic polyphenol counts for antioxidant iced teas, functional energy sodas, and sports hydration tonics.

Metabolic & Cardiovascular Capsules

Clinical interest in black tea theaflavins focuses heavily on their inhibitory action on pancreatic lipase, gut cholesterol micellar solubilization, and serum lipid moderation. In capsule, softgel, and stick-pack configurations, high-density granules (bulk density >0.45 g/ml) ensure seamless high-speed encapsulation without tool sticking or dust explosion risks.

Cosmeceuticals & Skin Barrier Care

Black tea thearubigins and tannins exhibit potent radical-scavenging activity against UVA-induced reactive oxygen species (ROS) and matrix metalloproteinases (MMPs). Refined, low-ash grades are formulated into anti-aging serums, sun-care boosters, and scalp-balancing shampoos aimed at modulating the localized microbiome.

Procurement Protocol

Supplier Qualification & Technical FAQs

Crucial data required by quality assurance directors, purchasing agents, and contract formulation chemists before qualifying our manufacturing facilities.

Which certifications do UniCare's manufacturing partners hold?

UniCare works with Chinese manufacturers whose quality systems are certified to standards including GMP, EU-GMP, CEP, ISO 9001, ISO 22000 and HACCP. Certification scope varies by product line, and the relevant certificates are shared for each ingredient during supplier qualification.

How are UniCare botanical extracts tested before release?

Each partner factory has independent testing capability. Typical release testing covers marker compound assay by HPLC or UV, residual solvents by GC, pesticide residues by GC-MS/MS, heavy metals (lead, arsenic, mercury, cadmium, copper) by ICP-MS, microscopic and TLC identification, moisture or loss on drying, ash, microbial limits, pH, conductivity and sulfur dioxide residue.

What documents are supplied with each batch?

Each lot is supplied with a batch-specific Certificate of Analysis. Specification sheets, MSDS, methods of analysis and regulatory statements can be provided on request during qualification.

Can UniCare customize ingredient specifications?

Yes. The customized service covers adjustments such as assay level or extract ratio, particle size and packaging format, subject to technical feasibility and regulatory requirements in the destination market.

How can buyers request a catalog or samples?

Buyers can request the product catalog and samples through the Request a Catalog page, by email at [email protected], or by phone at +86-028-85333989.

What is the shelf life, re-test date, and storage recommendation for wholesale Black Tea Polyphenols?

Standard packaging utilizes double food-grade polyethylene interior liners hermetically heat-sealed inside fiber drums (25 kg net weight). When stored in original unopened containers in a cool (<25°C), dry environment shielded from sunlight, black tea polyphenol powders hold a validated 24 to 36-month shelf life. Accelerated and real-time stability protocols (ICH Q1A) confirm minimal degradation of theaflavin monomer content over extended transit times.

How does your factory separate caffeine from Black Tea Polyphenols without halogenated solvents?

Our decaffeination process utilizes modern clean processing: food-grade ethyl acetate or continuous macroporous resin cross-adsorption followed by supercritical CO2 treatment options. We never deploy toxic halogenated hydrocarbons like dichloromethane or chloroform. This ensures our wholesale decaffeinated grades contain < 0.5% caffeine while remaining fully compliant with EU and FDA solvent residues guidelines.

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