Botanical Source: Phaseolus Vulgaris L.
Specification: 10:1 1% 2%
Appearance: Off-white Fine Powder
Used Part: Seed
Test Method: HPLC
MOQ: 1 kg
Sample: 20 g
Packing: 1 kg in aluminum foil bag; 25 kg in fibre drum
Delivery: FedEx, DHL, air shipment, sea shipment
Certifications: ISO, HACCP, KOSHER, HALAL, BRC
Features:
Non-irradiated
GMO-free, allergen-free, TSE/BSE-free
Not treated with ETO during production, storage, or transportation
SEND US A MESSAGE
CONTACT INFORMATION
Do you have questions about how we can help your company? Send us an email and we’ll get in touch shortly.
Reliable White Kidney Bean Extract Manufacturer & Bulk Supplier
Greenherb operates a certified processing facility specializing in White Kidney Bean Extract, a standardized alpha-amylase inhibitor protein ingredient derived from the seeds of Phaseolus vulgaris through controlled aqueous extraction and ultrafiltration purification. Our production system delivers consistent amylase inhibitor unit specification, verified protein identity, and batch-level analytical documentation. This provides weight management supplement manufacturers and functional food formulators with a dependable supply of this well-characterized legume-derived enzyme inhibitor ingredient.

Why Choose Greenherb White Kidney Bean Extract
Amylase Inhibitor Unit Standardization
Each production batch is verified against a defined alpha-amylase inhibitor unit specification. Standardization by inhibitory activity rather than simple protein content ensures functional performance consistency. Formulators can rely on predictable enzyme inhibition activity per dose across finished product formulations.
Phaseolamin Protein Identity Verification
Our extract is verified for Phaseolamin protein identity by electrophoretic analysis alongside activity testing. This dual verification confirms both the protein’s presence and its functional activity. It distinguishes our ingredient from non-active white kidney bean protein preparations.
Aqueous Extraction Processing
Our extraction uses only water as the processing medium. No organic solvents are involved at any stage. This produces a clean-label ingredient with zero solvent residues. It supports straightforward regulatory classification across supplement and functional food frameworks.
Ultrafiltration Purification
The crude aqueous extract undergoes ultrafiltration membrane separation. This removes low-molecular-weight compounds, sugars, and non-active protein fractions. The purified active protein fraction is concentrated to the target inhibitory activity specification.
Spray-Dried Powder Stability
Liquid extract is converted to free-flowing powder through controlled spray drying. Drying parameters are validated to maintain alpha-amylase inhibitor activity through the thermal drying process. Activity retention through spray drying is confirmed analytically on each production batch.
Heavy Metal and Pesticide Compliance
Every lot undergoes ICP-MS heavy metal screening and GC/LC-MS pesticide residue analysis. Results are verified against EU and US regulatory thresholds before release for commercial supply.
Allergen Declaration Support
White kidney bean is a legume and a recognized potential allergen in some markets. Comprehensive allergen declaration documentation is provided with each shipment. This supports finished product allergen labeling compliance across international food and supplement regulatory frameworks.
Complete Export Documentation
Each shipment includes COA, MSDS, allergen declaration, Non-GMO affidavit, activity certificate, and heavy metal test report. These support regulatory submissions across international supplement markets.
Certificate of Analysis
| Item | Specification | Results |
| Assay | ||
| Phaseolin | ≥1.0% | 1.10% (HPLC) |
| Physical & Chemical | ||
| Appearance | Light yellow to off -white powder | Conforms |
| Odor&Taste | Characteristic | Conforms |
| Part Used | Seed | Conforms |
| Loss on Drying | ≤5.0% | Conforms |
| Ash | ≤5.0% | Conforms |
| Particle size | 100% pass 80 mesh | Conforms |
| Bulk density | 45-65g/100ml | Conforms |
| Chemical Control | ||
| Heavy Metals | NMT10ppm | Conforms |
| Lead(Pb) | NMT3ppm | Conforms |
| Arsenic (As) | NMT2ppm | Conforms |
| Mercury(Hg) | NMT0.1ppm | Conforms |
| Cadmium(Cd) | NMT1ppm | Conforms |
| Microbiological Specifications | ||
| Total Plate Count | 10,000cfu/g Max | Conforms |
| Yeast & Mold | 1,000cfu/g Max | Conforms |
| E.Coli | Negative | Conforms |
| Salmonella | Negative | Conforms |
What Is White Kidney Bean Extract
The Functional Protein Behind the Ingredient
Phaseolus vulgaris white kidney bean contains a group of proteins that inhibit the activity of alpha-amylase, the digestive enzyme responsible for breaking down complex carbohydrates into absorbable simple sugars. This inhibitor protein, commercially known as Phaseolamin, is produced naturally in the bean seed. Its biological function in the plant is to deter insect predation. In human digestion, it reduces the rate and completeness of starch digestion when consumed with carbohydrate-containing meals.
Extract vs. White Kidney Bean Powder
White kidney bean powder is produced through simple mechanical reduction of dried bean material. It retains all bean components including starch, fiber, and protein fractions at naturally occurring concentrations. The alpha-amylase inhibitor protein content in crude bean powder is relatively low and inconsistent between batches. White Kidney Bean Extract undergoes selective aqueous extraction and ultrafiltration to concentrate the active Phaseolamin protein to a defined and activity-verified specification. This active protein concentration distinguishes the extract from simple bean powder preparations in supplement applications.
Understanding Alpha-Amylase Inhibition
Alpha-amylase is produced in the salivary glands and pancreas. It cleaves alpha-1,4 glycosidic bonds in starch molecules. This converts complex polysaccharides into maltose and glucose for intestinal absorption. Phaseolamin competitively inhibits this enzymatic cleavage. It reduces the rate of starch hydrolysis in the digestive tract. This mechanism forms the functional basis for White Kidney Bean Extract’s position in carbohydrate management and weight wellness supplement formulations.

Production Process
Seed Sourcing and Qualification
Incoming Phaseolus vulgaris white kidney bean seeds are assessed for botanical identity, alpha-amylase inhibitor activity, moisture, heavy metals, pesticide residues, and microbiological status. Only seeds meeting incoming activity specification proceed to extraction processing.
Cleaning and Dehulling
Seeds undergo mechanical cleaning to remove foreign matter, damaged seeds, and substandard material. Dehulling separates the seed coat from the cotyledon fraction. This concentrates the active protein fraction before extraction.
Aqueous Extraction
Dehulled seed material undergoes controlled aqueous extraction under defined pH, temperature, and time parameters. Water selectively solubilizes the alpha-amylase inhibitor protein alongside other water-soluble bean components. Extraction conditions are optimized to maximize Phaseolamin recovery while maintaining protein activity.
Centrifugal Separation
Crude extract undergoes centrifugal separation to remove insoluble starch, fiber, and cell wall material. The clarified protein-rich supernatant proceeds to ultrafiltration purification.
Ultrafiltration Purification
Clarified extract undergoes membrane ultrafiltration under controlled pressure conditions. This separates the active Phaseolamin protein fraction from low-molecular-weight sugars, salts, and co-extracted compounds. The concentrated active protein fraction is assessed for inhibitor activity before spray drying.
Activity Standardization
Concentrated extract is measured for alpha-amylase inhibitor activity by standardized assay. Controlled blending adjustments achieve target inhibitory unit specification. This ensures consistent functional activity across the production batch.
Spray Drying with Activity-Protective Carrier
Standardized extract is blended with food-grade carrier material. The blend is spray-dried under mild temperature conditions validated to maintain Phaseolamin activity through the drying process. Activity retention through spray drying is confirmed analytically.
Quality Release Testing
Each lot is tested for alpha-amylase inhibitor activity by standardized assay, protein content, moisture, heavy metals, pesticide residues, and microbiological compliance. Batches are released only after activity specification is analytically confirmed.
Protective Packaging
Finished powder is sealed in double-layer PE inner bags with desiccants. Drums are moisture-barrier sealed and stored under cool conditions. Temperature recommendations are provided to maintain Phaseolamin activity throughout shelf life.

Functional Properties & Benefits
Carbohydrate Management and Weight Wellness Support
White Kidney Bean Extract is incorporated into weight management supplement formulations. It contributes to products designed to support comfortable carbohydrate management and promote a sense of controlled dietary starch intake. The alpha-amylase inhibitor activity is the primary functional basis for this well-established positioning.
Calorie Comfort and Meal Support
Supplement formulations targeting mealtime calorie management incorporate White Kidney Bean Extract. These products are designed to support a comfortable reduction in net carbohydrate absorption from starchy meals. They contribute to a balanced daily caloric intake as part of a structured nutrition and lifestyle program.
Blood Sugar Comfort After Meals
Some metabolic wellness formulations incorporate White Kidney Bean Extract for its contribution to comfortable post-meal blood sugar levels. These products target glycemic comfort as part of a comprehensive daily metabolic wellness approach. The reduced starch digestion rate supports this positioning.
Digestive Comfort During Low-Carb Transitions
Some digestive wellness formulations incorporate White Kidney Bean Extract to support comfortable digestive function during dietary carbohydrate reduction programs. These products contribute to a comfortable digestive experience during periods of significant dietary change.
Satiety and Appetite Comfort Support
The reduced carbohydrate absorption associated with alpha-amylase inhibition contributes to formulations designed to support satiety comfort. Products targeting appetite comfort and fullness duration incorporate White Kidney Bean Extract as part of a comprehensive weight wellness supplement concept.
Prebiotic Comfort and Gut Environment Support
Partially digested starch that bypasses small intestinal absorption reaches the colon as resistant starch. This contributes to formulations supporting gut microbiome balance and prebiotic comfort as a secondary functional benefit alongside the primary carbohydrate management positioning.
Applications
Weight Management and Carb Blocker Supplements
White kidney bean supplement formulations in hard capsule, tablet, and powder sachet formats. Standardized alpha-amylase inhibitor activity, documented Phaseolamin protein identity, and comprehensive regulatory documentation support finished product positioning in the weight management and carbohydrate management supplement category.
Meal Support and Pre-Meal Supplement Formats
Pre-meal supplement formulations incorporating White Kidney Bean Extract for mealtime carbohydrate management comfort. Timing-specific supplement concepts target starchy meal occasions as the primary use context. Capsule and chewable tablet formats are primary delivery systems in this application category.
Metabolic Wellness and Blood Sugar Comfort Formulations
Multi-ingredient metabolic wellness formulations combine White Kidney Bean Extract with berberine, chromium, and complementary metabolic comfort ingredients. Post-meal blood sugar comfort and comprehensive metabolic wellness are primary positioning concepts.
Functional Foods and Fortified Nutrition Systems
Alpha-amylase inhibitor ingredient incorporated into functional nutrition bar systems, meal replacement formulations, and weight wellness food products. Documented activity specification and clean aqueous processing support functional food ingredient positioning.
Sports and Active Lifestyle Body Composition Products
Some body composition and lean muscle support supplement stacks incorporate White Kidney Bean Extract. These formulations target controlled carbohydrate partitioning as part of a comprehensive body composition management approach during structured training programs.

Contact Greenherb for White Kidney Bean Extract Supply
Greenherb supplies White Kidney Bean Extract with verified alpha-amylase inhibitor activity profiles, backed by comprehensive third-party testing. We offer flexible order quantities from laboratory samples to full container loads. Customized inhibitor activity tiers, protein content specifications, and particle size options are available on request. For immediate assistance, contact our sourcing team directly.
Greenherb – Your Strategic Partner for Botanical Ingredients and Functional Foods.
GreenHerb is a trusted supplier of high‑quality plant extract powders. We offer custom specifications, strict third‑party quality control, and reliable global shipping. Whether you need samples or bulk orders, we deliver pure, consistent ingredients to customers worldwide.
Global Shipping Coverage
We offer worldwide shipping service for all plant extract powder items. Orders can be delivered to most countries and regions, meeting diverse international business demands.
Safe & Efficient Distribution
- We provide all customs documents (invoice, COA, packing list) and a tracking number for every order. Shipping cost is calculated at checkout. For bulk orders, contact us for a competitive freight quote.
- We offer flexible packaging: 1kg, 5kg, 10kg, 25kg bags, or bulk drums. Customizable bag materials (foil, kraft paper)
SEND US A MESSAGE
CONTACT INFORMATION
Do you have questions about how we can help your company? Send us an email and we’ll get in touch shortly.
