Email: [email protected] Bulk botanical extract manufacturing since 2014

Custom OEM Soluble Extract Factory & Supplier

Industrial-Grade Botanical Soluble Extracts, Advanced Bioavailability Engineering, and GMP-Certified OEM/ODM Wholesale Solutions

Featured Product Catalog

High-Purity Soluble Quercetin & Sophora Japonica Actives

Explore our standardized soluble plant extracts engineered for beverage, dietary supplement, pharmaceutical, and nutraceutical formulations with full COA batch traceability.

Factory Direct Chinese Factory Provide Competitive Price Quercetin Powder

Chinese Factory Provide Competitive Price Quercetin Powder

95% Purity Natural Quercetin Powder Sophora Japonica Flower Extract 95%

Natural Quercetin Powder (Sophora Japonica Flower Extract) 95% Purity Solvent Extracted CAS 117-39-5

High Absorption Liposomal Quercetin 50% High Absorption

Liposomal Quercetin 50% High Absorption Liposome Encapsulated Quercetin Powder

98% HPLC Wholesale Bulk Pure Quercetin Extract 98%

Wholesale Bulk Pure Quercetin Extract 98% Quercetin Powder

Organic Grade Dietary Supplement Sophora Japonica Extract Quercetin Anhydrous Dihydrate

Dietary Supplement Sophora Japonica Extract Quercetin Anhydrous/Dihydrate Pure Powder

GMP Supply Factory Supply Sophora Japonica Extract Quercetin Powder 98% 95%

Factory Supply Sophora Japonica Extract Quercetin Powder 98% 95% Quercetin

Herb Extract Wild Horsetail Herb Extract Powder Food Grade Quercetin

Factory Source Wild Horsetail Herb Extract Powder Food Grade Quercetin for Bone Strength

Bulk Granular Price Powder 95 Granular Extract Dihydrate Anhydrous 98%

Price Powder 95 Granular Extract Dihydrate Anhydrous 98% 1Kg Bulk Quercetin

10+
Years GMP Manufacturing
300+
Metric Tons Annual Output
99.8%
Batch Assay Consistency
40+
Global Export Markets
Technical Industry White Paper

Engineering Water-Soluble Plant Extracts: Bioavailability, Stabilization & OEM Scalability

In the rapidly evolving global functional food, beverage, and nutraceutical sectors, raw botanical extracts frequently present significant formulation hurdles due to poor aqueous solubility, lipophilic structure, rapid oxidation, and low systemic bioavailability. As a professional Custom OEM Soluble Extract Factory & Supplier, RAAG Biotech addresses these technical bottlenecks through advanced physical, chemical, and particle-engineering technologies.

Standard hydrophobic plant flavonoids—such as Quercetin (derived from Sophora Japonica L.), Silybin, and Curcumin—exhibit crystalline lattices that resist dissolution in cold water. Traditional extraction often yields powders that clump, precipitate, or float, creating sediment in RTD (Ready-To-Drink) beverages and reducing intestinal absorption in human clinical applications. By implementing controlled enzymatic hydrolysis, micro-encapsulation, surfactant-free liposomal processing, and spray-drying carrier technology, our engineering facility transforms hydrophobic botanicals into fully cold-water-soluble (CWS) and instant-dispersible powders.

Core Formulation Breakthrough: Our proprietary water-soluble Quercetin Dihydrate and Liposomal Quercetin 50% complexes increase aqueous dissolution rates by over 400% compared to standard USP-grade raw materials, eliminating turbidity while maintaining bio-active integrity through low-temperature vacuum drying.

Comparative Technical Parameters: Standard vs. Advanced Soluble Extracts

To assist formulation scientists, R&D procurement managers, and contract manufacturers in qualifying ingredients, the analytical table below highlights the performance variations between un-modified botanical extracts and RAAG Biotech's OEM Soluble Extracts:

Evaluation Parameter Standard Crude Extract Spray-Dried CWS Extract RAAG Liposomal Soluble Active
Cold Water Dissolution Time Insoluble / >30 Mins (Sedimented) < 30 Seconds (Transparent/Opal) Instant Dispersion (< 15 Secs)
Active Marker Retention (HPLC) 90.0% - 95.0% 95.0% - 98.0% Standardized 50.0% Liposome Encapsulated
Particle Mesh Size Range 60 - 80 Mesh 100 - 140 Mesh Micro-Granular 200 - 400 Nanometer Vesicles
Apparent Bioavailability Increase Baseline (1.0x) 2.2x Enhanced Surface Area 4.5x - 8.0x Intestinal Cell Uptake
Application Suitability Hard Capsules, Tablets Drink Mixes, Effervescent Tabs Premix Sachets, Functional RTDs
Solvent Residue Level < 50 ppm Ethanol Solvent-Free / Water Reflux Zero Organic Solvent Residuals

Key Processing Routes for OEM Custom Soluble Ingredients

Achieving superior solubility requires customized processing depending on the target plant monomer or extract ratio:

  • Supercritical CO2 Extraction & Fractionation: Eliminates heat damage to sensitive lipophilic molecules, enabling clean oleoresin extraction without harsh chemical residue.
  • Enzymatic Hydrolysis & Glycoside Cleavage: Cleaves bulky sugar moieties from naturally occurring glycosides, enhancing water binding and physiological activity.
  • Spray-Drying & Hydrocolloid Carrier Encapsulation: Utilizing food-grade Acacia gum, Maltodextrin, or Sunflower Lecithin matrices to coat active particles, preventing agglomeration.
  • Membrane Micro-Filtration & Nanofiltration: Purifies target polyphenols while separating insoluble botanical fibers, cell debris, and heavy tannins.
Market Intelligence & Strategy

Future Procurement & Global Industry Trends (2025–2030)

The global botanical extract market is experiencing a profound paradigm shift. B2B procurement managers and brand owners are moving beyond basic price-per-kilogram purchasing toward evaluating total formulation cost, batch stability, regulatory compliance, and supply chain audit readiness. As a leading manufacturer, RAAG Biotech identifies four key macro trends shaping the procurement landscape:

1. Rise of Instant Beverage Formulations

Consumers increasingly prefer stick-pack powders, liquid drops, and functional RTD shots over traditional pills. This demands fully cold-water-soluble botanical ingredients that remain clear without precipitation.

2. Clean-Label & Low-Solvent Directives

Regulatory frameworks (EU Commission Directives, US FDA Monograph Compliance) are tightening requirements on residual organic solvents like Ethyl Acetate and Methanol. Water-extracted and CO2-extracted soluble powders are becoming standard.

3. Liposomal & Bio-Enhanced Technologies

Bioavailability enhancement is now a mandatory selling point. Brands actively seek liposome-encapsulated Quercetin, Phosphatidylserine complexes, and Phytosomes to back up efficacy claims with lower clinical dosages.

Furthermore, ESG (Environmental, Social, and Governance) commitments are reshaping buyer criteria. Modern supply chains demand direct farm-to-factory traceability, zero pesticide residues (compliant with EP 2.8.13 testing suites), and energy-efficient vacuum spray-drying infrastructure to lower carbon footprints across the supply chain.

Enterprise Authority & Quality Assurance

Why Partner with RAAG Biotech Co., Ltd.?

Founded in 2014, RAAG Biotech Co., Ltd. operates as a specialized extraction house and technical partner rather than a simple trading firm. Located in the heart of China’s botanical processing zone in Xi'an, Shaanxi, our facility bridges rigorous agricultural management with pharmaceutical-grade industrial production.

01

Planting Base Control

Directly contracted GAP-certified growing bases for Sophora Japonica, Horsetail, Saffron, and Gromwell root, enforcing strict control over harvest timing and raw herb quality.

02

GMP-Audited Facilities

Stainless steel extraction lines, continuous counter-current extractors, 100,000-class clean rooms, and automated spray-drying towers ensuring zero cross-contamination.

03

In-House Analytical Lab

Fully equipped analytical testing center equipped with Agilent HPLC, UV-Vis Spectrophotometers, GC-MS solvent residue setups, and atomic absorption heavy metal analyzers.

04

Global Audit Compliance

Full batch documentation provided per shipment: COA, MSDS, Flow Chart, Allergen Statement, Non-GMO verification, ISO 22000, Halal, Kosher, and Organic certifications.

Custom OEM & ODM Technical Services

We tailor extract parameters to meet precise contract manufacturing specifications:

  • Custom Active Assays: Standardized Quercetin Dihydrate (95%, 98%), Quercetin Anhydrous (98%), Liposomal Quercetin (50%), and customized plant polyphenols.
  • Mesh Size & Bulk Density Modification: Customized powder milling from standard 80 mesh to ultra-fine 200 mesh micro-powders, or custom wet granulation for capsule filling machines.
  • Excipient & Carrier Options: Non-GMO Maltodextrin, Organic Acacia Gum, Rice Flour, Sunflower Lecithin, or Carrier-Free 100% Pure Plant Extracts.
  • Bespoke Formulation Blends: Contract blending of complementary bio-actives (e.g., Quercetin + Vitamin C + Zinc Bromelain) in homogenous pre-mixed powders.
Frequently Asked Questions

B2B Buyer FAQ: Soluble Plant Extract Purchasing

What documentation accompanies each bulk shipment of plant extracts?
Every commercial batch travels with a comprehensive documentation package, including a batch-specific Certificate of Analysis (HPLC/UV assay verification), MSDS, Technical Data Sheet (TDS), Specification Sheet, Allergen Statement, Non-GMO Certification, Microbiological Report, Heavy Metals Panel, and Pesticide Residue Screening. Third-party testing reports from SGS, Eurofins, or Intertek can be provided prior to shipment upon request.
How does your custom OEM process handle solubility and taste masking?
Our R&D team uses spray-drying micro-encapsulation with food-grade hydrocolloids or natural phospholipids. This masks the characteristic bitterness of raw plant polyphenols (such as Quercetin or Sophora extracts) while ensuring complete, sediment-free dissolution in room-temperature water within 30 seconds.
What are the Minimum Order Quantities (MOQ) for custom soluble extract manufacturing?
For standard inventory items (such as Quercetin Powder 95%/98%), our MOQ starts at 1 kg for trial testing and 25 kg (standard fiber drum) for commercial pricing. For custom OEM formulations, carrier customization, or specialized liposomal encapsulation, our pilot-scale batch production MOQ starts at 100 kg.
Can you guarantee long-term batch-to-batch color and assay consistency?
Yes. We achieve consistent quality by maintaining long-term purchasing agreements with standardized raw material growing bases and utilizing automated, computer-controlled extraction loops. Every production run is blended and evaluated against retained benchmark samples to guarantee strict assay, mesh size, and color tolerances.
What are the typical lead times for sample verification and bulk export?
Free 10–50 g evaluation samples with full analytical COAs are dispatched within 24 to 48 hours via express air courier (DHL/FedEx). Standard bulk inventory ships within 3 to 5 business days upon payment confirmation, while custom OEM/ODM production runs require 12 to 20 business days depending on specific micro-encapsulation or granulation steps.

Request Custom Soluble Extract Specifications & Free Samples

Partner with a certified GMP factory for your customized botanical extract formulations. Contact our technical sales desk today to request Certificate of Analysis files, pricing tiers, and 10–50g lab samples.

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