Our global botanical matrix is developed utilizing advanced chromatographic separation to deliver active components with standard-setting efficacy and stability.
As consumer demand shifts toward scientifically validated, highly clean-labeled functional ingredients, green tea catechins (especially EGCG) have emerged as key targets for advanced formulations.
Green tea extract derived from Camellia sinensis contains a specialized family of natural polyphenols called Catechins. These flavan-3-ols represent the pinnacle of natural antioxidant power, containing four primary active monomer structures: Epigallocatechin Gallate (EGCG), Epigallocatechin (EGC), Epicatechin Gallate (ECG), and Epicatechin (EC). Among these, EGCG makes up over 50% to 60% of the total catechin profile and is widely studied for its therapeutic value in metabolic health, cellular protection, and cognitive support formulations.
For global business procurement managers, identifying where to buy China green tea with catechins is not merely a matter of finding a low-cost commodity. It requires an in-depth understanding of extraction efficiency, pesticide limit control (particularly under EU and FDA regulations), decaffeination technologies, and batch-to-batch consistency. UniCare coordinates with premium domestic plantation bases and uses state-of-the-art separation columns to produce extracts ranging from 30% to 98% purity, addressing both raw nutritional applications and high-end pharmaceutical ingredients.
UniCare is a professional supplier of natural active ingredients. Our products are widely used in various fields such as dietary supplements, food, cosmetics, and pharmaceuticals. We focus on product development and quality stability, and insist on growing together with our customers around the world.
UniCare has deep cooperation with several excellent Chinese manufacturers who have complete quality management system certifications, including but not limited to GMP, EUGMP, CEP, ISO9001, ISO22000, and HACCP. Each factory has independent testing capabilities and is equipped with advanced and efficient testing equipment to ensure the high quality and long-term stability of each batch of products.
By leveraging China's vast agricultural footprint and integrating Industry 4.0 automation, we act as a bridge between pristine raw botanicals and compliant, ready-to-use active ingredients for global brand owners.
Contact Us TodayOur corporate core drives every technological breakthrough and collaborative milestone we share with our global clients.
UniCare attaches great importance to the hardware conditions of production equipment and has the largest and most advanced extraction factory in China. The entire production line in UniCare is controlled by a modern, intelligent, automatic control system.
Until now, UniCare has built up two GMP workshops, containing six multi-functional extraction lines, among which there is the only production line for Ginkgo Biloba Extract of acetone process in the whole China. Here are several other production lines including fermentation production lines and Chinese medicine pieces. A total of 30,000 tons of various Chinese medicine plant raw materials can be processed each year.
In the field of green tea extraction, quality and safety issues often arise from high levels of pesticide residues, heavy metals, and polycyclic aromatic hydrocarbons (PAHs). Our partner production bases solve these bottlenecks using Factory 4.0 principles, featuring automated control systems that govern temperature, pH, pressure, and extraction time dynamically.
Our countercurrent extraction systems reduce solvent consumption by up to 35% compared to traditional batch extractors, while maximizing the recovery rate of fragile catechin molecules. This efficient closed-loop extraction process limits the exposure of polyphenols to oxygen, preventing thermal degradation and oxidative conversion of EGCG into non-active compounds. Furthermore, we employ advanced column chromatography using pharmaceutical-grade adsorption resins to separate caffeine, yielding decaffeinated green tea extract with less than 1% caffeine content, tailored for sleep-support and relaxation formulations.
UniCare has established a leading and complete quality control system, and strictly controls the high quality of products in accordance with the quality system. With advanced testing instruments and strict control of product quality, we provide every customer with high-quality products.
Detectable items include: Signature component detection (HPLC or UV), solvent residues GC, pesticide residues (organochlorine detection) GC-MS-MS, heavy metals (lead, arsenic, mercury, cadmium, copper) ICP-MS, microscopic identification, moisture, dry weight loss, ash, microbial limits, thin layer identification, weighing, conductivity, pH, sulfur dioxide residue, routine detection, and more.
Important testing instruments at our central laboratory: Two UHPLC Agilent 1290 ultra-high performance liquid chromatographs, four HPLC Agilent 1260 high-performance liquid chromatography sets, two HPLC Shimadzu LC-20AT high-performance liquid chromatographs, two HPLC Dionex UltiMate 3000, two Shimadzu evaporative light scattering detectors (ELSD 2000ES), one Shimadzu GC2010 gas chromatograph, and one Shimadzu AA-7000 atomic absorption system.
| Quality Control Category | Testing Parameters & Methods |
|---|---|
| Active Ingredient Analysis | Assay verification, chromatographic profiling, molecular identification. |
| Hazardous Substance Analysis | ICP-MS heavy metals limits, GC-MS-MS pesticide residues, solvent residue screening. |
| Microbe Analysis | Total aerobic microbial count (TAMC), Yeast & mould count, Escherichia coli detection, specific pathogen assays. |
| Raw Material Control | GACP planting site control, botanical identity identification, non-GMO compliance, allergen testing. |
| Laws & Regulations Confirmation | Strict compliance checking with EFSA, US FDA, CFDA, USP, and European Pharmacopoeia (EP) monographs. |
| Stability Test | Accelerated and real-time stability testing to define shelf-life under diverse storage conditions. |
| Others | pH value, moisture, ash, optical rotation, bulk density, particle size analysis. |
| UHPLC, Agilent 1290 (×2) | HPLC, Agilent 1260 (×4) | HPLC, Shimadzu LC-20AT (×2) |
| ELSD, Shimadzu 2000ES (×2) | Shimadzu GC-2010 (×1) | Shimadzu AA-7000 (×1) |
Our upstream security guarantees purity and traceability from the soil to the final standard extract.
UniCare invests 10% of our annual net profit in research and development. In addition to optimizing and developing the existing natural plant extraction processes, we have also established a professional R&D department for natural fermentation products. By increasing investment in natural fermentation products, we try to break through traditional processes and disrupt industry development.
UniCare has deep cooperation with Beijing University of Chemical Technology in the field of fermentation, jointly developing and transforming new raw materials of pharmaceutical, cosmetic, and natural health products into mass-produced products.
In order to control raw materials more efficiently and with higher quality, a raw material procurement system has been established, which extends procurement to every piece of planting land and can trace the raw materials of each batch of products. The storage of raw materials is operated according to the advanced quality management system process, and the content of active ingredients, moisture, ash, heavy metals, pesticide residues, and other parameters of raw materials are strictly controlled.
At the same time, in order to further ensure the high quality of important products, UniCare cooperated with planting farmers to establish ginkgo leaf planting bases, epimedium planting bases, phellodendron planting bases, olive leaf planting bases, etc. Some of these bases are planted strictly in accordance with the GACP management model. In addition, we cooperate with seedling research and development companies to develop high-content seedling cultivation, and cultivate better seedlings through hybridization or gene optimization, so as to continuously reduce unit costs to benefit users.
Leading the clean label transition with green chemistry, molecular encapsulation, and targeted active recovery.
As the international marketplace demands cleaner extracts, UniCare is implementing a technical transition from traditional organic solvent extraction to sustainable solutions. Our technological roadmap for green tea extracts with catechins focuses on:
Global regulatory bodies like EFSA (European Food Safety Authority) and the US FDA have updated toxicity guidelines regarding concentrated EGCG intake, establishing a suggested upper safe limit of 800mg/day for free catechins. UniCare helps product formulators design dose-compliant products by supplying precise standard dilutions and low-caffeine/decaffeinated matrices.
For import logistics, we offer ready-cleared customs configurations, complete certification packages (non-irradiation declarations, allergen-free certificates, BSE/TSE declarations, and Kosher/Halal approvals), and established warehouses in shipping hubs to minimize international lead times.
Get answers to the most common questions raised by procurement managers and R&D formulation scientists.
Explore our full line of natural active extracts, verified by state-of-the-art analytical equipment at our central CNAS-compliant testing center.
