Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Curcumin

    • Product Name Curcumin
    • Alias CUR
    • Einecs 620-544-1
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    Specifications

    HS Code

    777625

    Name Curcumin
    Alternative Name Diferuloylmethane
    Chemical Formula C21H20O6
    Source Turmeric (Curcuma longa) rhizome
    Appearance Bright yellow-orange powder
    Solubility Insoluble in water, soluble in ethanol and DMSO
    Molecular Weight 368.39 g/mol
    Cas Number 458-37-7
    Bioavailability Low oral bioavailability
    Main Uses Dietary supplement, food coloring, traditional medicine
    Taste Mildly bitter
    Melting Point 183°C
    Storage Cool, dry, and dark place
    Stability Sensitive to light and heat
    Origin Plant-based, extracted from turmeric

    As an accredited Curcumin factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Curcumin is packaged in a sealed amber glass bottle, 25 grams, labeled with chemical name, purity, batch number, and safety information.
    Shipping Curcumin is shipped in tightly sealed, light-resistant containers to maintain stability and purity. It should be stored and transported at cool temperatures, away from direct sunlight and moisture. Appropriate labeling and documentation ensure safe handling, complying with international regulations for chemical transport. Personal protective equipment is recommended during handling and unpacking.
    Storage Curcumin should be stored in a tightly closed container, protected from light and moisture, as it is sensitive to air and sunlight. Keep it in a cool, dry place, ideally at room temperature (15-25°C). Avoid exposure to excessive heat and oxidizing agents to maintain its stability. Proper storage prolongs its shelf life and preserves its chemical integrity.
    Application of Curcumin

    Purity 98%: Curcumin Purity 98% is used in pharmaceutical formulation, where it ensures consistent therapeutic efficacy.

    Particle Size <10 µm: Curcumin Particle Size <10 µm is used in nutraceutical blends, where it enhances bioavailability and absorption rates.

    Melting Point 183°C: Curcumin Melting Point 183°C is used in thermal processing applications, where it maintains structural integrity during granulation.

    Stability Temperature 120°C: Curcumin Stability Temperature 120°C is used in functional food production, where it preserves antioxidant properties under pasteurization.

    Solubility in Ethanol 10 mg/ml: Curcumin Solubility in Ethanol 10 mg/ml is used in beverage colorant manufacturing, where it improves uniform dispersion.

    HPLC Purity 99%: Curcumin HPLC Purity 99% is used in dietary supplement capsules, where it guarantees safety and product consistency.

    Moisture Content <2%: Curcumin Moisture Content <2% is used in cosmetic formulations, where it prevents microbial growth and extends shelf life.

    Assay ≥95%: Curcumin Assay ≥95% is used in analytical research standards, where it provides reliable reference material for quantification.

    Stability in Light 90 days: Curcumin Stability in Light 90 days is used in transparent packaging of health foods, where it ensures sustained color retention.

    pH Stability 4-8: Curcumin pH Stability 4-8 is used in acidic beverage systems, where it maintains color stability and prevents degradation.

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    Competitive Curcumin prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

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    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

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    Certification & Compliance
    More Introduction

    Curcumin: Bringing Consistency and Purity From Factory to Application

    Our Experience in Manufacturing Curcumin

    Working inside a chemical plant for more than a decade teaches respect for the little details. With curcumin, the road runs right through the turmeric root and into the precise controls we maintain during extraction and crystallization. We have seen requests for curcumin grow steadily every year. This isn’t just market trend talk. Our production lines steadily receive larger orders from food processors, supplement houses, and even coatings manufacturers who look for reliable colorants and antioxidants. They come to manufacturers because they want consistent performance batch after batch, not the errors and surprises of poorly tracked third-party bulk lots. From equipment maintenance through to the final drying stage, these details stack up to make a difference that shows up immediately when our customers run their incoming tests.

    Model and Specifications Drawn From Practical Plant Needs

    Out in the real world, end users talk directly to us about solubility, flowability, and how much color the curcumin brings in each gram. We concentrate our process on producing food-grade curcumin with purity levels that don’t dip below the 95% mark. A 95% benchmark lets researchers and buyers control additive amounts with less guesswork. Other producers, especially traders or importers, will sometimes claim 98% or up, but the batch-to-batch reality usually tells a different story. To avoid that seesaw, we stick to a factory-verified figure — 95% curcumin content, with every lot tracked through validated HPLC methods that align with published pharmacopoeia requirements.

    For labs with tight calibration checks or food technologists aiming at colored beverages and tablets, success hinges on whether the curcumin dissolves well and stays bright. Our curcumin comes as an orange-yellow crystalline powder, non-agglomerated, and stable enough in dry storage to keep its hue across multiple industrial cycles. Most lots pass through a final micronizing grinder, ensuring the standard sieve size remains under 80 microns — fine enough for direct dispersion into most carriers.

    Usage That Reflects Long-term Factory Experience

    As a manufacturer, our main users land in three groups: food and drink producers, dietary supplement companies, and researchers working on natural colorants or antioxidants. Food processors blend our curcumin into bakery mixes, oils, cheeses, and ready-to-drink beverages. The color intensity stands out against turmeric oleoresin and lower-grade curcuminoids. In powdered drink bases, our curcumin dissolves in just a few turns of a mixer. Technicians in our downstream clients tell us it shaves hours off their production times compared to granular blended turmeric. Capsule and tablet makers convey similar feedback. They ask about particulate size because high-purity curcumin pushes up the active dose, so their label guarantees and tablet weights stay consistent.

    The nutraceutical field keeps raising their tolerances for contaminants. Over the years, we have invested in refining out heavy metals and pesticide residues, often running dual stages of chromatography and carbon purification to reach actual, published global benchmarks. This process started for us back when European and North American regulators began closely watching imports, catching some batches with illegal colorants or excessive lead and solvent residue. We doubled down on certified clean rooms and triple-wash procedures. Regular random sampling and third-party auditor visits became part of our daily reality. These improvements brought our curcumin consistently below 10 ppm lead and under 2 ppm mercury, numbers that sit comfortably inside food and pharma requirements in both Asia and Europe.

    How Our Curcumin Compares to Other Options

    Many on the outside won’t see the difference between curcumin and turmeric powder. Our team fields this question routinely at exhibitions or in supplier meetings. Curcumin—what we refine—is a concentrated yellow-orange molecule, a specific curcuminoid, isolated by solvent extraction and crystallization. Regular turmeric powder contains the root’s fiber, essential oils, and a large fraction of starchy carbohydrate that blunt the overall intensity. Customers relying on generic powder face wide swings in both flavor and chroma. In beverage and supplement manufacturing, batch-to-batch variability turns into recalls or expensive reworks when color or active content jumps outside spec.

    Turmeric oleoresin, another competitor in the colorant market, comes out as a thick, viscous fluid containing curcumin along with turmerone oils and resinous components. In emulsified systems, oleoresins sometimes separate or cloud at low temperatures, causing haze or precipitate over time. Our crystalline powder sidesteps these pitfalls. In a water-dispersible grade, micro-crystallized curcumin integrates into emulsions, bakery fats, and dry blends with fewer unexpected results. Customers working in routine QA labs can pick up our lot and anticipate the identical color shade and HPLC content each time.

    Building Trust With Quality Controls Backed By Experience

    We didn’t build a reputation on spec sheets. Audits, site visits, and open technical support create a feedback loop that keeps our process honest. Over twenty years, we’ve worked to weed out undesirable process variables—the exact boiling range for extraction solvents, wash solutions free of microbial contamination, and anti-caking treatments that don’t interfere with the curcumin molecule. Incoming turmeric rhizomes show broad quality variation by region and harvest time. By working directly with farms through contract supply and receiving detailed agricultural histories, we’ve reduced guesswork about root origin and likely contaminant loads.

    Supply chain disruptions sometimes force changes in raw material source, but in those years, our in-process tracking captured even small deviations in color or taste profile. Factory shifts learned not to cut corners, because traceability links every lot to a documented batch record. Many clients, especially overseas buyers, now ask for full transparency cards—showing not just laboratory certificates, but also storage temperatures, equipment logs, and sample retention programs. We provide these routinely, understanding that long-term business relationships depend on transparency as much as analytical numbers. In our line of work, traceability means no lost paperwork, no anonymous drums, and lots that don’t carry surprises.

    Curcumin Safety and Regulatory Concerns in the Field

    With natural colorants, solvent residues and outlawed synthetic adulterants make up the core safety focus. Reports out of India and East Asia over the past decade showed several non-reputable suppliers adding illegal yellow dyes or using contaminated solvents to boost yields. True manufacturing requires rigid controls with every solvent lot fully documented and disposed according to environmental protocols. We committed early to producing solvent-free final products, running both GC and HPLC screens before every release.

    Some countries continue updating legal maximums for contaminants such as ethylene oxide or synthetic colorants. We track these changes closely—not just on paper, but through routine batch testing and holding shipments until outside labs confirm compliance. European and North American authorities regularly recall imported curcumin for failing lead limits or mislabeling. Clear labeling, coupled with open batch records and shipment certifications, brought regulatory peace of mind to our clients who need risk-free, audit-ready supply chains.

    Every regulatory body—from EFSA to the US FDA—recognizes curcumin as a food additive within certain use rates. We tune production parameters to keep heavy metals at a fraction of the global standard, always below the listed daily intake markers, not just below regulatory fines. By updating plant SOPs after each global advisory, we help our clients sidestep border delays and embarrassing recalls. For us, this means proactively investing in method improvements to meet not just today’s limits, but those already proposed for the coming years. Each tank batch logs these adjustments, giving buyers a backward-traceable picture both at time of delivery and months after storage.

    Direct Feedback Loops: Putting Factory Data Into Action

    Visits from outside QA teams and researchers often contribute more than formal certifications. For example, beverage makers running continuous lines report particle agglomeration that triggered sieving failures with certain curcumin lots from traders. Armed with this information, we adjusted our spray-drying and micronizing process, creating a powder less likely to clump in water-based beverages. These types of exchanges, face-to-face or through digital tracking sheets, mean that manufacturing always stays close to the end-user’s challenges.

    Clients working with infant formula and dietary supplements flag concerns that some sources of curcumin scatter widely between batches in failed steam sterilization or rising humidity. We train production staff to monitor moisture uptake and properly seal product barrels. Over the years, documenting this training and tracking outcomes helped us anticipate downstream complaints. Drying curves and packaging improvements make up a steady investment that pays off more in trust than in easily measured outputs.

    Why We Don’t Outsource What Matters

    Many newer entrants in the market operate through contract fillers, loose brokers, and “white label” arrangements. Risk piles up near the end of the supply chain, leaving manufacturers and brand owners exposed to failures that started far upstream. We intentionally keep both extraction and final blending in-house. Owning the whole chain matters—not as a marketing boast, but because only this structure lets us guarantee traceability and maintain process interventions when something veers off track. Each lot passes through the same trained team and the same independently logged QA stages.

    Smaller volume buyers sometimes ask why they can’t secure a deep discount on bulk powder pulled from pooled or resold inventory. We walk through the chain of custody with them, showing how broken tracking increases the risk of mislabeling, hidden solvent residues, or sudden jumps in heavy metal content. Shortcuts may shrink the invoice but blight every claim of safety and reliability, and in our experience, pulled product lines and damage control cost far more down the line. By keeping extraction, processing, and final QC under our roof, our cost structure reflects the real price of guaranteed purity—not the riskier bets of volume resellers.

    Market Trends: Responding to Customer Demands and Opportunities

    Demand for curcumin has never trended down in my time at this plant. Food and nutrition industries only raise the bar, not lower it. Recent years saw a pivot from plain coloring applications toward expanded nutraceutical and health supplement uses. As the published clinical data on curcumin’s biological actions grows, so does pressure for solid, repeatable composition. Supplement formulation teams place more weight now on batch documentation, solvent residence, and paired capabilities like dispersibility in lipids or polar solvents.

    The surge in demand for vegan and clean label claims makes source transparency a driving buyer concern. By controlling each stage, our operation provides the supply chain records brands need to defend both auditor and consumer questions. Farm-to-factory traceability surfaced as a must-have. With legislation tightening every year, chemical residue, microbe counts, and anti-adulteration features stand front and center. Having built our processes to exceed many national requirements, our buyers inherit simplicity—they aren’t left policing suppliers across three continents or reconciling mismatched certificates.

    Field Solutions: The Difference Real Troubleshooting Makes

    On the production floor, theory meets practice where troubleshooting reveals real gaps. There isn’t a week a client technical manager fails to share a new requirement—whether for lower dust in powder handling or improved blending performance in high-speed lines. One major beverage group faced stubborn floating curcumin particles that delayed dissolution and created off-color streaks. By working with their engineers, our R&D team reduced average particle diameter and increased surface hydrophilicity through an extra micronization and coating step.

    In other end uses—tablets, capsules, and micro-beaded granulates—the challenge surfaced as over-compression dust and variable potency over shelf life. We responded by working directly with tablet press operators, tracking compression force, and altering granulation binder loads to maximize active load with minimal binder. Solutions like these rarely live in the abstract or inside a spreadsheet alone—only factory-level visibility into each process step reveals the real-world sticking points.

    By investing actual hours with customers’ own machinery and process teams, we uncover opportunities that rarely appear in standard product development cycles. These adjustments, born of face-to-face troubleshooting, set the foundation for long-term customer relationships that don’t rest on marketing claims but grow with technical exchanges.

    Looking Ahead: What Sets Factory-Direct Curcumin Apart

    The nature of our work puts a microscope on plant-level transformations and end-user feedback. Factory management doesn’t lean into promises we can’t audit or reproduce. Every lot shipped represents a year-round practice of refining and improving—one batch, one feedback session, and one technical upgrade at a time.

    Beyond compliance to external standards, we also bring technical guidance to our partners. When end-user teams face a novel application, from controlled-release microcapsules to dairy-alternative matrices, we provide more than a standard datasheet. Actual samples, trial batch analysis, and on-site application troubleshooting set up a feedback-rich flow that informs our next plant upgrades.

    We spent years in the trenches of extraction scale-up, granulation tweaking, and regulatory audit. Our perspective—grounded in hands-on experience—translates into curcumin shipments that meet both today’s requirements and those around the corner. This difference only comes from investing at each level, retaining control of manufacturing, testing, and customer-facing solutions.

    Closing Thoughts From the Plant Floor

    Looking across our manufacturing record and the stories tallied over the years, the main lesson stays simple: real quality builds from details, grit, and consistent adaptation to the unexpected. Curcumin stands as more than a commodity powder. It’s a product shaped by tight process control, deep-shared feedback, and openness with customers that flows directly from the shop floor through to finished product performance. Being a direct manufacturer matters because it secures both safety and reliability—every shipment carries the weight of practical factory learning and the transparency that today’s clients demand.