Gallnut Extract Powder

 

 

Premium Gallnut Extract Powder: Your Trusted Natural Tannin Source

Searching for a dependable botanical component with strong antioxidant and astringent qualities? For your industrial, food, and pharmaceutical uses, Gallnut Extract Powder offers outstanding quality. This natural extract, which comes from Rhus chinensis Mill. galls, has a standardized tannic acid level of 90% to 98%. Our Gallnut Extract provides you with a clean-label option with superior bioactivity, in contrast to synthetic substitutes that encounter regulatory obstacles. Its superior water solubility, ability to chelate metals, and demonstrated stability in a variety of formulation conditions will be advantageous to you. Whether you're creating specialty chemicals, food preservatives, or nutraceuticals, this high-quality extract satisfies your exacting standards.

We at Shaanxi Rebecca Biotechnology Co., Ltd. are your quality partner, not just a supplier. Modern technologies and strict quality control are combined in our facilities to guarantee that you consistently receive high-purity products.

Our Technical Advantages:

· Bioactive chemicals are preserved by advanced high-temperature drying and ultra-fine grinding technology.

· A committed research and development team is refining extraction procedures to maximize yield and purity.

· Modern testing apparatus, such as heavy metal analyzers, UV-VIS, and HPLC

· A wide range of certifications, including ISO9001, ISO22000, FSSC22000, HACCP, HALAL, KOSHER, cGMP, Non-GMO, and Vegan

Your Benefits:

· Robust supply capacity and effective worldwide logistics

· OEM/ODM modification to meet your unique formulation requirements

· Powders, tablets, hard capsules, and soft capsules are examples of flexible dose forms.

· Verification of safety, efficacy, and purity by third parties

· Reasonably priced and consistently consistent from batch to batch

We provide safe, natural products that satisfy EU EC396 and EU 2023/915 criteria, guaranteeing that your compositions satisfy the strictest international standards.

Our raw materials come exclusively from carefully selected gallnuts formed on Rhus chinensis leaves after aphid parasitization. We categorize our sources into three quality grades:

Belly Gall (Premium Grade): Spindle-shaped with 68.8%-71.4% tannin content—your optimal choice for high-purity extract production

Angled Gall (Standard Grade): Rhomboid morphology containing 65.5%-67.5% tannins—our mainstream commercial-grade feedstock

Flower Gall (Industrial Grade): Fragmented structure with 33%-38.5% tannin content—reserved for specific industrial applications

We implement manual sorting to remove moldy, broken, and contaminated materials before processing. In order to guarantee that you receive pure, traceable raw materials, complete batch records record every stage from collection to drying and storage. Our approach to soil management focuses on organic-rich, pH-controlled loams that maximize the accumulation of bioactive compounds (6.0-7.5).

Solubility Characteristics:

Our regular gallnut extract powder dissolves quite well in acetone, ethanol, and hot water. Although high-concentration solutions may exhibit some turbidity, it is soluble in cold water. We provide cyclodextrin-modified versions that stay crystal clear at high concentrations for applications needing improved cold-water dispersion.

Stability Parameters:

· Temperature: Stable at or below 65°C during processing; avoid extended exposure beyond 85°C to avoid hydrolysis

· pH Range: Avoid extremely alkaline settings; maximum stability occurs between pH 3.0 and 6.5.

· Light Sensitivity: Dry powder is stable and shields aqueous solutions from UV light.

· Storage: Moderately hygroscopic; keep in cool, sealed containers shielded from light.

Because of these qualities, it is perfect for drinks, liquid supplements, cosmetics, and pharmaceutical formulations that need to be stable over time.

Our temperature-controlled extraction method maximizes purity while maintaining bioactive integrity:

To avoid premature hydrolysis, we start with manual sorting and low-temperature drying (40–45°C). For maximum extraction effectiveness, the dried gallnuts are crushed to a mesh size of 20 to 30. The tannin breakdown typical of conventional boiling techniques is avoided by our unique warm-water countercurrent extraction (45–55°C, 2–3 cycles).

In a light-protected setting, the filtered extract reaches a negative-pressure concentration (≤60°C). We use specific purifying techniques for various purity grades: Simple resin purification is applied to 90% of grades, single-stage resin treatment with activated carbon decolorization is applied to 95% of grades, and multi-stage cascade purification together with nanofiltration and recrystallization is necessary for 98%+ medicinal grades.

Critical Control Points:

· Temperature monitoring throughout extraction and concentration

· Free gallic acid content verification after resin purification

· Color uniformity assessment during batch blending

· Water-insoluble matter testing before final packaging

We complete the process with low-temperature spray drying, precise particle size control, and vacuum-sealed packaging under nitrogen protection.

Pharmaceutical & Nutraceutical Sector:

Your formulations benefit from potent astringent and anti-inflammatory properties. The extract performs effectively in gastrointestinal health products, even withstanding the stomach's low-pH environment. It serves as a natural API alternative for anti-diarrheal and hemostatic preparations.

Food & Beverage Industry:

As a clean-label antioxidant, it naturally prolongs shelf life and stops lipid oxidation in high-fat food. In order to produce wine and beer with spectacular clarity without the use of artificial agents, beverage manufacturers employ it for protein precipitation and clarification.

Cosmetic & Personal Care:

You'll like its antioxidant potential for anti-aging products and its inherent astringent qualities for pore-tightening compositions. It serves as an antimicrobial ingredient in dental care and toiletries.

Industrial Applications:

Leather tanning operations rely on its reliable tanning capacity, while textile processors value its performance as a natural mordant with superior UV resistance and color fastness.

We use thorough testing procedures to ensure quality. Each batch is subjected to multi-point verification, including microbiological testing, physical parameter confirmation, heavy metal screening (Pb <1 ppm, As <0.5 ppm), free gallic acid quantification, and tannic acid concentration by HPLC.

The ISO9001, ISO22000, FSSC22000, and HACCP frameworks are all integrated into our quality management system. From the procurement of raw materials to the final packaging, we keep thorough chain-of-custody records. Our requirements are independently verified by third-party laboratories, giving you more assurance for regulatory filings.

All products meet international pharmacopeial standards (CP, USP, EP where applicable) and comply with EU contaminant regulations, ensuring your formulations meet global market requirements.

Standard Packaging:

· Inner: Vacuum-sealed, light-proof aluminum foil bags

· Outer: Moisture-proof fiber drums (25kg net weight)

· Labeling: Complete batch information, storage instructions, and safety data

Custom Options Available:

From modest research amounts (100g–1kg) to large industrial orders (500kg+), we can meet your unique packaging needs. Additional tamper-evident sealing and inert gas flushing are features of specialized packaging for pharmaceutical-grade goods.

Shipping Methods:

Our worldwide logistics network offers air freight for medium volumes, sea freight for economical bulk shipments, and express courier (DHL, FedEx) for samples and urgent orders. Every order comes with complete paperwork, such as COA, MSDS, and certificates of regulatory compliance.

Q: How do you prevent insect debris and inferior galls from contaminating raw materials?

A: We manually inspect and sort every batch, removing rotten, crushed galls and plant impurities before processing. Complete traceability records document collection, drying, and storage, ensuring pure gallnut-only raw materials.

Q: Can you control free gallic acid content and report it separately on the COA?

A: Yes. Our low-temperature extraction and targeted resin separation minimize hydrolysis. Each COA independently lists both tannic acid and free gallic acid values to meet your formulation specifications.

Q: How do you address batch-to-batch color variations?

A: We implement unified raw material grading, standardized decolorization, and finished-product batch blending. Strict color and water-insoluble matter tolerances ensure consistent clarity and shade across shipments.

Q: What's your minimum order quantity and lead time?

A: MOQ is 1kg for initial trials. Standard production lead time is 7-15 days after order confirmation. We maintain stock of popular specifications for faster delivery.

Q: Do you provide free samples for testing?

A: Absolutely. We offer 50-100g complimentary samples so you can verify quality before committing to larger orders. contact us at information@sxrebecca.com to request yours today.

Are you prepared to include superior Gallnut Extract Powder to your formulations? Our technical staff is available to talk about your particular needs and suggest the best specification for your application. For comprehensive product details, quotes, or requests for samples, contact information@sxrebecca.com. Together, let's develop natural solutions!