China Best Polyphenol Extract Factory & Supplier

While colorimetric assays (e.g., Folin-Ciocalteu for total polyphenols or UV absorbance) serve as preliminary screening benchmarks, our factory relies strictly on high-performance liquid chromatography with photodiode array detection (HPLC-DAD) referencing validated analytical standards (USP, Ph. Eur., or certified reference materials) for specific active monomers (e.g., Curcuminoids, EGCG, Resveratrol, Quercetin). This prevents inflated claims from interfering reducing compounds.

Torzi Biotech strictly practices Green Chemistry protocols. We utilize food-grade grain ethanol, deionized purified reverse-osmosis water, or supercritical carbon dioxide (SC-CO2). We avoid halogenated or toxic Class 1 hydrocarbons. Every batch is certified compliant with USP <467> and EP 5.4 specifications via headspace gas chromatography (GC-HS), ensuring total residual ethanol remains comfortably below 3,000 ppm (or sub-500 ppm upon custom request).

Every shipment arrives with a complete Manufacturer's Certificate of Analysis (COA) encompassing active assay, botanical identity, heavy metals (Pb, As, Cd, Hg via AAS/ICP-MS), 450+ residual pesticides screen, and microbiological enumeration (USP <2021/2022>). Furthermore, we routinely cross-validate our lots with accredited third-party laboratories including Eurofins, SGS, and NSF International, readily supplying dual-blind analytical data.

For standard catalog items (e.g., 95% Curcumin, Pure Hyaluronic Acid, Organic Acerola VC), our baseline MOQ starts at 1 kg to 25 kg to accommodate pilot clinical and formulation trials. Commercial export drums are standardized at 25 kg fiberboard drums containing double food-grade polyethylene heat-sealed liners with desiccant. Air freight orders dispatch within 3–5 business days, while ocean container contracts ship via Qingdao, Shanghai, or Tianjin ports within 10–14 days.

Yes. Beyond bulk powders, Torzi Biotech offers turnkey OEM/ODM contract manufacturing across hard-shell vegetable capsules (HPMC/Pullulan), tableting, micro-granule stick-packs, and functional powder drink blends. Our cleanrooms feature automated blister-packaging, high-speed bottling, nitrogen induction sealing, and bespoke formulation blending starting from low commercial MOQs of 500 retail units.

Thermolabile and oxidation-sensitive botanical extracts are processed under nitrogen-blanketed environments, spray-dried with optimized glass-transition temperatures, and packed in multi-layer aluminum-foil vapor-barrier bags. Real-time stability testing reports across 24 to 36 months under varying climatic zones (ICH conditions) are made available to support our clients' product shelf-life declarations.