Primary Botanical Portfolios
Featured Standardized Active Ingredients
Fully validated chromatograms, documented origin tracing, and high-purity batch releases certified under international EU-GMP and cGMP frameworks.
Analytical Science & Phyto-Chemistry
Macro-Industry Solutions: Beyond Basic Polyphenol Assays
Navigating analytical degradation, non-specific adulteration (peanut skin extract/pine bark extract spiking), and batch standardization through precise chromatographic characterization.
OPC Oligomer Characterization
Commercial Grape Seed Extracts (GSE) frequently face specification ambiguity. UniCare resolves this by classifying Oligomeric Proanthocyanidins (OPCs) based strictly on the degree of polymerization (DP 2 to DP 7). Monomeric flavan-3-ols [(+)-catechin, (-)-epicatechin] are quantified discretely from high-molecular condensed polymers to ensure repeatable bioavailability.
Combatting Economically Motivated Adulteration
Global raw material markets suffer from common adulteration where generic grape pomace or peanut skin tannins are blended to elevate UV-spectrophotometry values. UniCare employs Normal-Phase HPLC coupled with LC-MS/MS fingerprinting, tracking distinct anthocyanidin cleavage ratios to definitively verify authentic Vitis vinifera L. origin.
Aqueous Hydro-Ethanolic Extraction Yields
Moving away from chlorinated or highly toxic industrial solvents, our manufacturing centers operate continuous closed-loop hydro-ethanolic extraction suites. This stabilizes bioactive procyanidin B1, B2, and C1 structures, while eliminating unwanted solvent residues to strictly satisfy USP, Ph. Eur., and California Proposition 65 thresholds.
Global Supply Operations
Global Sourcing Landscape & Supply Chain Resilience
How our decentralized manufacturing nodes in Sichuan, Shaanxi, and Xinjiang manage the volatility of raw grape pomace and global agricultural economics.
Aggregated Pomace Feedstocks
Partnering directly with massive viticulture cooperatives across major wine and grape production hubs ensures over 3,000 MT of fresh, unfermented or low-fermentation grape seed input annually, mitigating seasonal commodity surges.
De-Oiling & Separation Purity
Grape seeds naturally contain 8% to 15% lipids. Our facilities employ industrial cold-press separation prior to countercurrent hydro-solvent leaching, ensuring final extract powders exhibit zero lipid rancidity or hydrophobic clump formation.
Cold-Chain & Drum Logistics
Procyanidins are susceptible to oxidative dimerization when exposed to elevated temperatures. UniCare standardizes food-grade, vacuum-flushed aluminum composite bags inside fiber drums stored under monitored cool-warehouse controls.
Audit-Ready Supplier Files
Each commercial shipment is backed by continuous batch release dossiers, including GC-MS/MS pesticide screens (covering over 400 compounds), ICP-MS heavy metal metrics, and verified country-of-origin phytosanitary documentation.
| Standardized Grade | Marker Concentration | Assay Method | Physical Attribute | Typical Industrial Application |
|---|---|---|---|---|
| GSE-OPC-95P | Proanthocyanidins ≥ 95.0% | UV-Vis (Ph. Eur. / USP) | Reddish-Brown Fine Powder | Dietary Supplements, Cardiovascular Softgels |
| GSE-HPLC-80M | OPC ≥ 80.0%, Catechin/Epicatechin ≥ 15% | Reverse-Phase / Normal HPLC | 100% Water Soluble, Clarified | Functional Beverages, Anti-Aging Ready-to-Drinks |
| GSE-POLY-90 | Total Polyphenols ≥ 90.0% | Folin-Ciocalteu Method | Micro-Milled Powder (80-100 Mesh) | Nutraceutical Tablets, Hard-Shell Capsules |
| GSE-COSM-WS | Water Soluble Procyanidins ≥ 95% | UHPLC Fingerprint Verified | Light Tan / Reddish, Low Astringency | Dermatological Serums, Cosmeceutical Creams |
Regulatory Dossier Architecture
Localized Regulatory Support & Destination Verification
We provide full technical support to pass rigorous cross-border regulatory qualifications in North America, the European Union, the United Kingdom, and Asia-Pacific markets.
United States: FDA 21 CFR Part 111 & NDIN
Full support for US dietary supplement brand owners. Every batch is supplied with FSVP documentation, foreign manufacturer qualification records, Prop 65 lead limits (<0.5 mcg/day exposure basis), and allergen-free declarations conforming to US FDA expectations.
European Union: EFSA & Contaminants Compliance
Total conformance with EU Commission Regulation (EU) 2023/915 on contaminants. We strictly verify Polycyclic Aromatic Hydrocarbons (PAH4: Benzo[a]pyrene < 10 ppb; sum of 4 PAHs < 50 ppb) and certified Ethylene Oxide (ETO) non-treatment guarantee.
Enterprise Traceability & Identity Documentation
Comprehensive supplier audit files include: HPTLC authentic fingerprint overlays, non-GMO project declarations, Halal and Kosher batch certificates, and detailed continuous countercurrent extraction process flowcharts.
Applied Science & R&D
Industrial Application Profiles & Delivery Matrix Solutions
Resolving physical and chemical formulation hurdles: precipitation in beverage production, astringency in consumer stick-packs, and degradation in dermatological cosmetics.
Functional Beverages & RTDs
Condensed tannins cross-link with salivary proteins, creating severe bitterness and hazy sediment in liquid bottles. UniCare provides specialized enzyme-treated, low-molecular fractions designed for rapid cold-water dissolution without hazing or settling across pH 3.2 to 4.5.
Direct-Compression Solid Dosages
Standard grape seed extract powders often exhibit poor bulk density and static surface charges that disrupt tableting dies. Our spray-granulated grades provide optimized flowability (bulk density 0.45–0.58 g/mL), preventing capping and maintaining tablet hardness.
Cosmeceuticals & Topical Anti-Aging
Procyanidins are powerful elastase and collagenase inhibitors. For water-in-oil cosmetic emulsions, our decolorized and refined polyphenolic fractions mitigate dark brown staining while preserving cellular radical-scavenging capacities.
Strategic Innovation
Technological Roadmap: Extraction Innovation 2026–2030
Our forward-looking development pathway integrating AI-driven continuous chromatography, supercritical enrichment, and nano-encapsulation matrices.
Phase 01 · 2026
Subcritical Water Extraction
Commercial deployment of high-pressure subcritical water systems, minimizing organic solvent consumption to zero while selectively extracting monomeric and dimeric proanthocyanidins.
Phase 02 · 2027
AI-Monitored Resins
Integrating online NIR (Near-Infrared) spectrometry sensors with automated macroporous resin adsorption columns, dynamically trimming polymer cuts to maintain precise oligomeric ratios batch-to-batch.
Phase 03 · 2028
Liposomal Bio-Carrier Matrices
Engineering phospholipid-complexed and cyclodextrin-encapsulated Grape Seed Extract powders to achieve up to 3.5× higher plasma AUC levels for procyanidin B2 in human clinical trials.
Phase 04 · 2029–2030
Zero-Waste Upcycling
Closing the agricultural loop by fractionating residual seed fiber post-extraction into insoluble prebiotic carbohydrates and polyphenolic lignin complexes for specialized livestock feed additives.
Technical FAQs
Procurement & Technical Due-Diligence Q&A
Direct answers to the most stringent analytical, auditing, and shipping inquiries posed by pharmaceutical buyers, QA directors, and formulation chemists.
Why does UV spectrophotometry test results diverge significantly from HPLC assays for Grape Seed Extract?
UV-Vis spectrophotometry (such as the Porter method or general acid-butanol assays) is a non-specific colorimetric assay. It causes any condensed tannin or polyphenolic aromatic ring to respond, which means it cannot distinguish between beneficial monomeric/dimeric OPCs, high-molecular non-bioavailable polymers, or synthetic adulterants (like peanut skin extracts). In contrast, Normal-Phase HPLC or Reverse-Phase UHPLC separates and quantifies distinct compounds such as (+)-catechin, (-)-epicatechin, and Procyanidin B1/B2 individually. UniCare provides both assays on our Certificates of Analysis, clearly stating which analytical standard was applied.
How does UniCare certify and document raw material origin to prevent adulteration?
Every production batch starts with unfermented, traceable Vitis vinifera L. seeds from verified grape processing clusters. We perform HPTLC botanical fingerprint identification against certified botanical reference materials (BRM). To rule out common peanut skin adulterants, we run LC-MS screenings for propelargonidin markers and peanut allergen protein residues. Complete farm-to-factory chain-of-custody documentation is included in our regulatory files.
What residual solvent and PAH thresholds are guaranteed on export shipments?
Because our extraction lines operate with pure deionized water and food-grade ethanol, Class 1 and Class 2 solvents are completely avoided. Residual ethanol is kept well below USP/EP requirements (<5,000 ppm, typically <1,000 ppm via headspace GC). Regarding Polycyclic Aromatic Hydrocarbons (PAHs), we meet European Regulation (EU) 2023/915: Benzo[a]pyrene is confirmed < 10 ppb, and the sum of PAH4 (benzo[a]pyrene, benz[a]anthracene, benzo[b]fluoranthene, chrysene) is verified < 50 ppb via GC-MS/MS testing.
Can UniCare customize particle size, mesh distributions, and granulation for direct compression?
Yes. Standard micro-pulverized powder passes 80 to 100 mesh, which works well for traditional capsule blending. For direct compression tableting or high-speed stick-pack filling lines, we offer custom spray granulation and roller compaction. This increases bulk density from 0.32 g/mL up to 0.55 g/mL, improving powder flow, minimizing static adhesion, and eliminating die jamming.
What are the standard packaging configurations, lead times, and MOQ requirements?
Our standard export packaging consists of 25 kg fiber drums with double-sealed polyethylene inner liners, flushed with pharmaceutical-grade food nitrogen. Minimum order quantities (MOQ) for catalog specifications are 25 kg (1 full drum), while tailored custom extractions require a 500 kg campaign run. Standard catalog lots ship within 5 to 7 business days from our Chengdu central inventory, supported by prompt ocean-freight and air-courier customs documentation.
Complete Extract Catalog
Explore Allied Functional Botanical Ingredients
Direct access to specifications, batch analytical releases, and factory-direct commercial terms across our production catalog.
