High-purity botanical extracts developed via state-of-the-art clean extraction technology for diverse applications.
Unlocking the metabolic, cardiovascular, and visual health benefits of Anthocyanin-rich botanical complexes.
Black Bean Extract (*Glycine max* L.) is highly sought after for its rich levels of water-soluble flavonoids, specifically Cyanidin-3-Glucoside (C3G). Our factory-level refining maintains consistent active potencies ranging from 5% to 25% Anthocyanins via HPLC validation.
We solve the fundamental industry pain point of heavy metal contamination and pesticide residues. Leveraging fully documented non-GMO crop sourcing, every batch of Black Bean Hull Extract guarantees zero chemical cross-contamination.
Through our proprietary physical extraction processes, the cellular structure of the anthocyanins remains intact, increasing intestinal permeability and ensuring superior bioabsorption metrics compared to synthetic alternatives.
Pioneering clean-label extraction technologies to enhance monomer stability and bioavailability.
Anthocyanins in black soybean hulls are highly sensitive to thermal degradation. Standard extraction processes that rely on prolonged heat exposure often lead to the degradation of the delicate Cyanidin-3-Glucoside (C3G) structure, transforming it into less bioactive chalcones. Our plant utilizes a proprietary closed-loop, low-temperature water-ethanol extraction cycle. By operating at temperatures below 55°C under vacuum, we prevent thermal cleavage of the glycosidic bond, preserving maximum monomer stability and safeguarding the natural antioxidant potential of the raw botanicals.
To produce premium pharmaceutical-grade Black Bean Extract, we use multi-stage membrane filtration combined with macroporous resin adsorption chromatography. This technology isolates the targeted anthocyanins from background proteins, starches, and fiber matrices. The result is a highly concentrated powder that displays excellent cold-water solubility, minimal color variation between batches, and a neutral sensory profile, making it suitable for clear RTD functional beverages and powder mixes.
The future of phytonutrient delivery lies in maximizing biological half-life. While anthocyanins have high functional capability, their instability at physiological pH levels (especially in the small intestine) remains an industry-wide challenge. TRB is currently partnering with leading bio-medical laboratories to test sub-micron and liposomal encapsulation of C3G. Our dynamic research shows that lipid-based microencapsulation shields the pigment from premature oxidation, extending its absorption window in the gastrointestinal tract by up to 2.5 times.
| Parameter / Specification | Standard Grade (5% Anthocyanins) | Premium Grade (25% Anthocyanins / 10% C3G) | Testing Method |
|---|---|---|---|
| Appearance | Dark Purple Powder | Fine Deep Violet Purple Powder | Visual / Organoleptic |
| Assay (C3G) | ≥ 1.5% C3G | ≥ 10% Cyanidin-3-Glucoside | HPLC-UV |
| Heavy Metals (Pb, As, Cd, Hg) | ≤ 10 ppm total | ≤ 5.0 ppm total | ICP-MS |
| Loss on Drying | ≤ 5.0% | ≤ 4.0% | Vacuum Oven |
| Bulk Density | 0.40 - 0.60 g/mL | 0.45 - 0.65 g/mL | Standard USP Method |
Seamless integration of functional properties into large-scale production cycles.
Black bean extracts serve as key components in formulations targetting eye fatigue, blood sugar regulation, and vascular system integrity. The structural similarities of C3G to rhodopsin precursors enable formulation in capsules, tablets, and softgels aimed at visual protection and cellular longevity.
The high antioxidant capacity of the extract makes it an exceptional addition to sports recovery formulations. By mitigating muscular oxidative stress markers post-workout, black bean extract helps active consumers recover faster, while also providing a vibrant natural purple hue to drink mixes.
Anthocyanins function as powerful free-radical scavengers that neutralize reactive oxygen species (ROS) induced by UV radiation. Incorporated into topical formulations, our extract helps protect collagen structures, inhibit melanin synthesis, and soothe inflammatory skin conditions.
Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB) operates at the forefront of agricultural industrialization in China. Across our three specialized manufacturing facilities, we have deployed advanced automation networks designed to monitor critical parameters from raw material loading to final packaging.
Our raw material supply chain relies on localized contract farming of non-GMO black soybeans. By contracting raw material sources directly with regional agricultural cooperatives, we control pesticide input, soil quality, and harvest schedules. This complete integration isolates our supply chains from global price shocks and guarantees steady inventory volumes for large contract manufacturing programs.
Every step of the process is digitized: clean-in-place (CIP) loops prevent cross-contamination, and automated packaging systems operating under ISO 7 positive pressure clean rooms ensure the microbiological stability of the product. This dedication to quality is why TRB was named the Best Global Herbal Extract Provider 2026 at the Global Biotechnology and Life Sciences Awards.
Addressing critical procurement requirements for international buyers and formulation chemists.
Our global shipping infrastructure guarantees containerized transport within 10 to 14 days of order confirmation. We maintain safety inventory buffers at key transit ports to eliminate disruptions.
Need a formulation-specific particle size? We customize raw powder particle distributions (from 80 to 200 mesh) to ensure seamless dispersion in tablets, suspensions, or liquids.
We employ state-of-the-art ICP-MS systems to verify that cadmium, lead, arsenic, and mercury meet the strict levels required by EU and FDA regulations.
Our computerized HPLC verification processes ensure that the concentration of active anthocyanins is standardized across every production run.
Ensuring seamless custom clearance and regulatory validation in local markets.
TRB is fully certified across major international regulatory frameworks. Our facilities operate under strict compliance, maintaining valid GMP, ISO, HACCP, ORGANIC (USDA/EU), FDA, HALAL, and KOSHER certificates.
We provide full verification packets for regulatory registration, including Certificate of Analysis (COA), Allergen Statements, Non-GMO declarations, residual solvent profiles, and complete MSDS documentation.
We help you navigate complex food safety regulations, including European Food Safety Authority (EFSA) novel food classifications, FSMA requirements in the US, and local regulatory filings worldwide.
Technical and commercial answers to simplify your ingredient selection.
A leading manufacturer and exporter of botanical extracts and high-purity functional ingredients for over 20 years.
Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB) is a leading China-based manufacturer and exporter of high-quality herbal extracts and derivatives, with over 20 years of experience. We combine research and development, manufacturing, and international sales to deliver reliable active ingredients to global industries.
Our portfolio includes standard botanical extracts, sweeteners, nootropics, vegetable and fruit juice powders, essential oils, and bee products. In recognition of our dedication to product quality and service, we received the 2026 Global Biotechnology and Life Sciences Award for "Best Global Herbal Extract Provider 2026."
TRB currently operates three dedicated factories: a botanical extraction facility, a bee products plant, and an animal-derived extract factory. Our facilities maintain GMP, ISO, HACCP, ORGANIC, FDA, HALAL, and KOSHER certifications, supporting exports to over 60 countries and regions.
In recent years, TRB has focused on developing functional wellness ingredients, such as botanical extracts for cognitive support, healthy aging, and cellular vitality, receiving strong positive feedback from our international customer base.
Explore our range of plant extracts and active compounds designed for functional formulations.
Fax: 86-25-52867040 
