Bitter Gourd Extract

In the rapidly expanding metabolic health market-projected to reach $89.4 billion by 2027-formulators face a persistent challenge: sourcing botanical ingredients that deliver consistent bioactive profiles while meeting stringent regulatory standards across multiple markets. Our Bitter Gourd Extract addresses this industry pain point through vertically integrated production, standardized charantin content, and comprehensive documentation that simplifies your regulatory pathway.

Unlike commodity-grade extracts with variable potency, our pharmaceutical-grade Bitter Gourd Extract undergoes 17-point quality verification, ensuring batch-to-batch consistency that protects your brand reputation and reduces reformulation costs.

Common Names: Bitter Gourd, Bitter Melon, Karela, Balsam Pear
Scientific Classification: Momordica charantia L. (Cucurbitaceae family)
Traditional Use History: 600+ years in Ayurvedic and Traditional Chinese Medicine systems

Bitter gourd thrives in tropical and subtropical climates across Asia, Africa, and the Caribbean. The fruit's distinctive bitter taste-attributed to cucurbitacin compounds-has made it both a culinary vegetable and medicinal plant throughout human history.

Geographic Origin & Sourcing Philosophy

Our Bitter Gourd Extract sources from certified organic farms in Guangxi Province, China-a region renowned for optimal growing conditions:

Altitude: 200-800 meters above sea level

Climate: Subtropical monsoon with 1,500mm annual rainfall

Soil composition: Mineral-rich red clay with pH 6.0-6.8

Harvest timing: Peak maturity (45-55 days post-flowering) for maximum charantin concentration

We maintain direct partnerships with 23 family-operated farms spanning 340 hectares, implementing Good Agricultural Practices (GAP) that eliminate synthetic pesticides while preserving soil microbiome diversity. This traceability extends to individual lot numbers-critical for clients serving EU and North American markets.

Our extract contains a synergistic complex of bioactive compounds, each contributing to the ingredient's metabolic health applications:

Primary Active Constituents

Charantin (Standardized to 10% by HPLC)
A steroidal glycoside comprising β-sitosterol glucoside and stigmasterol glucoside. Research published in the Journal of Ethnopharmacology (2019) demonstrates charantin's insulin-mimetic properties through AMPK pathway activation.

Polypeptide-p (Plant Insulin)
A 166-amino acid polypeptide with structural similarity to bovine insulin. Clinical studies show subcutaneous administration reduces blood glucose by 20-28% within 4 hours (Khanna et al., 1981).

Vicine
A pyrimidine nucleoside that enhances glucose uptake in peripheral tissues. In vitro studies demonstrate 34% increased GLUT4 translocation in muscle cells.

Momordicin I & II
Triterpene glycosides exhibiting antioxidant capacity (ORAC value: 12,400 μmol TE/g) and supporting pancreatic β-cell function.

Secondary Metabolites

Cucurbitane-type triterpenoids: 23 identified compounds including momordicosides A-E

Phenolic acids: Gallic acid, chlorogenic acid, caffeic acid (total phenolics: 42 mg GAE/g)

Flavonoids: Quercetin, kaempferol, rutin (total flavonoids: 18 mg QE/g)

Carotenoids: β-carotene, lutein, zeaxanthin (supporting antioxidant synergy)

This multi-compound profile explains why whole-fruit extracts often outperform isolated compounds in clinical settings-a consideration for formulators seeking "food-as-medicine" positioning.

Additional Testing Available: Aflatoxins (B1, B2, G1, G2), Ochratoxin A, PAHs, Dioxins, Glyphosate residues

Our production facility in Chongqing operates under cGMP, FSSC 22000, and BRC certifications, with annual capacity of 120 metric tons. The extraction process balances yield efficiency with bioactive preservation:

Step-by-Step Production Protocol

1. Raw Material Reception & Inspection
Fresh bitter gourds arrive within 6 hours of harvest. Quality control inspects for:

Fruit maturity (Brix value: 4.5-5.2)

Absence of mechanical damage

Pesticide rapid screening (immunoassay)

2. Cleaning & Size Reduction
Triple-wash system (ozonated water → potable water → deionized water) removes field debris. Industrial slicers create 3-5mm uniform pieces for optimal extraction surface area.

3. Enzymatic Pre-treatment
Proprietary cellulase/pectinase blend (2 hours at 45°C) ruptures cell walls, increasing charantin recovery by 27% compared to direct extraction.

4. Hydroalcoholic Extraction
Counter-current extraction using 60% ethanol at 70°C (3 cycles × 2 hours). This solvent ratio optimizes polar and semi-polar compound extraction while minimizing chlorophyll co-extraction.

5. Filtration & Concentration
Multi-stage filtration (100μm → 10μm → 1μm) followed by vacuum concentration at <55°C to preserve heat-sensitive polypeptides.

6. Spray Drying
Inlet temperature: 180°C; Outlet temperature: 85°C
Maltodextrin carrier (DE 10-12) at 5% w/w improves flowability and stability.

7. Milling & Standardization
Jet milling achieves 80-mesh particle size. Batch blending adjusts charantin content to 10% ±0.5% using validated dilution protocols.

8. Final Packaging
Nitrogen-flushed, triple-layer aluminum foil bags (inner PE layer) with desiccant sachets. Each 25kg drum includes:

* COA with batch-specific test results

* Allergen declaration

* Stability data summary

* Regulatory status documentation

1. Dual-Standardization Approach

While most suppliers standardize only total saponins, we guarantee both charantin (10%) and total saponins (15%)-providing the complete bioactive spectrum documented in clinical research.

2. Water-Soluble Format Available

Our proprietary microencapsulation technology creates a water-dispersible version (instant solubility in cold water) ideal for:

* Ready-to-drink beverages

* Effervescent tablets

* Protein shake formulations

3. Low-Bitterness Variant

Through selective extraction and activated carbon treatment, we offer a debittered version (bitterness reduced by 65%) without compromising charantin content-solving a major consumer acceptance challenge.

4. Organic & Conventional Options

Flexibility to match your brand positioning:

* Organic: USDA/EU certified, 15% price premium

* Conventional: Pesticide-free (tested), cost-optimized for mass market

5. Transparent Supply Chain

Blockchain-enabled traceability (partnership with VeChain) allows your customers to scan QR codes and view:

* Farm location with GPS coordinates

* Harvest date and weather conditions

* Processing timestamps

* Test results at each production stage

Glycemic Control: The Primary Application

Human Clinical Data:
A 2020 meta-analysis in Phytotherapy Research (12 RCTs, n=1,045 subjects) found bitter melon supplementation reduced:

Fasting blood glucose: -0.50 mmol/L (95% CI: -0.77 to -0.23)

HbA1c: -0.25% (95% CI: -0.48 to -0.03)

Postprandial glucose: -0.91 mmol/L (95% CI: -1.42 to -0.40)

Mechanism Insights:

AMPK Activation: Charantin phosphorylates AMPK (Thr172), mimicking metformin's action

α-Glucosidase Inhibition: IC₅₀ = 42 μg/mL (comparable to acarbose)

PPAR-γ Modulation: Upregulates adiponectin secretion by 34% in adipocytes

Glucose Transporter Enhancement: Increases GLUT4 translocation in skeletal muscle

Secondary Health Applications

Lipid Metabolism Support
Rat model studies (2018, Journal of Medicinal Food) showed 8-week supplementation reduced:

Total cholesterol: 18%

LDL-cholesterol: 22%

Triglycerides: 26%

While increasing HDL by 14%

Antioxidant Defense
ORAC value of 12,400 μmol TE/g provides cellular protection. In vitro studies demonstrate:

SOD activity increase: 41%

Catalase activity increase: 38%

Lipid peroxidation reduction: 52%

Immune Modulation
Polysaccharide fractions exhibit immunostimulatory effects:

Macrophage phagocytosis increase: 67%

NK cell activity enhancement: 43%

Cytokine balance (IL-10↑, TNF-α↓)

Safety Profile

Toxicology Data:

Acute oral LD₅₀ (rats): >5,000 mg/kg body weight

90-day subchronic study: NOAEL = 1,000 mg/kg/day

Ames test: Non-mutagenic

Micronucleus test: Non-clastogenic

Contraindications & Interactions:
⚠️ Not recommended for pregnant women (traditional abortifacient use)
⚠️ May potentiate hypoglycemic medications (monitor blood glucose)
⚠️ Theoretical interaction with CYP3A4 substrates (clinical significance unclear)

1. Blood Sugar Management Supplements

Typical Formulation:

* Bitter Gourd Extract (10% charantin): 500-1,000 mg

* Chromium picolinate: 200 mcg

* Alpha-lipoic acid: 300 mg

* Cinnamon extract: 250 mg

* Berberine HCl: 500 mg

Dosage Form: Vegetarian capsules (2 capsules daily with meals)

Market Positioning: "Clinically-studied botanical blend for healthy glucose metabolism"

Target Demographic: Adults 40+ with prediabetes or family history of type 2 diabetes

2. Metabolic Health Functional Beverages

Formulation Challenge: Bitterness masking in ready-to-drink format

Solution: Our water-soluble, debittered extract at 200 mg per 250mL serving, combined with:

* Stevia extract for sweetness

* Citrus flavoring (lemon/lime)

* Green tea extract for synergistic antioxidants

* B-vitamin complex

Case Study: A European beverage brand launched a "Glucose Balance" drink using our extract, achieving 18% repeat purchase rate within 6 months (Q3 2025 data).

3. Weight Management Formulas

Rationale: Bitter gourd's effects on lipid metabolism and satiety signaling

Synergistic Ingredients:

* Bitter Gourd Extract: 750 mg

* Garcinia cambogia (60% HCA): 500 mg

* Green coffee bean extract: 400 mg

* Conjugated linoleic acid: 1,000 mg

Clinical Support: Pilot study (n=62) showed 12-week supplementation resulted in 3.2 kg greater weight loss vs. placebo (p<0.05)

4. Digestive Health & Detox Products

Traditional Use: Bitter compounds stimulate digestive enzyme secretion

Modern Application: Liver support and detoxification formulas

* Bitter Gourd Extract: 400 mg

* Milk thistle (80% silymarin): 300 mg

* Dandelion root extract: 250 mg

* Artichoke leaf extract: 200 mg

Mechanism: Choleretic effect increases bile flow by 28% (animal model data)

5. Immune Support Blends

Emerging Research: Polysaccharide immunomodulation

Formulation Example:

* Bitter Gourd Extract: 500 mg

* Elderberry extract: 500 mg

* Zinc gluconate: 15 mg

* Vitamin C: 500 mg

* Echinacea extract: 400 mg

Seasonal Product: Winter wellness formulas for European and North American markets

We ensure the stability and integrity of your ingredient during storage and transit.

Standard Packaging:

* 5 kg / 11 lbs net: Double-lined. Inner layer: food-grade polyethylene bag. Outer layer: poly-aluminum foil bag for moisture and oxygen protection. Packed in a sealed cardboard carton.

* 10 kg / 22 lbs net: Packed in a food-grade plastic drum with the same double-lined inner bags.

* Custom Packaging: Available upon request, including private labeling and custom batch sizes.

* Global Logistics: We are experienced in international B2B shipping (FOB, CIF, DAP) and provide all necessary documentation for customs.

JOYWIN own a number of invention patents and certifications including NOP/JAS, BRC, FSSC, cGMP, Kosher, HALAL, ISO9001, ISO14001, ISO22000, etc.

Product Specifications

Q: What's the difference between 10% charantin and 10% total saponins standardization?

A: Charantin is a specific steroidal glycoside within the broader saponin category-it's the most researched bioactive in bitter gourd. Total saponins include charantin plus other cucurbitane-type compounds. Our extract guarantees 10% charantin (the "gold standard" marker) AND 15% total saponins, ensuring you get the complete bioactive profile studied in clinical trials. Many suppliers only test total saponins, which can include less-active compounds.

Q: Can you provide an extract ratio (e.g., 10:1)?

A: We focus on bioactive standardization rather than extract ratios because ratio alone doesn't guarantee potency-a 10:1 extract from low-quality fruit may contain less charantin than a 5:1 extract from premium material. Our 10% charantin specification is equivalent to approximately 15-20:1 concentration from fresh fruit, but the standardization ensures consistent potency regardless of seasonal variations in raw material.

Q: Is your Bitter Gourd Extract suitable for vegan/vegetarian products?

A: Yes, absolutely. Our extraction process uses only plant-based materials and ethanol. No animal-derived processing aids are used. We can provide vegan certification documentation upon request.

Regulatory & Compliance

Q: What's the regulatory status in the United States?

A: Bitter gourd (Momordica charantia) has a long history of food use and is generally recognized as safe (GRAS) when used in dietary supplements at typical dosages (500-2,000 mg daily). It's classified as a dietary ingredient under DSHEA. We provide a regulatory status letter confirming compliance with FDA requirements for dietary supplements.

Q: Can this ingredient be used in EU markets?

A: Yes. Bitter gourd has traditional food use in EU member states and doesn't require Novel Food authorization. However, specific health claims require EFSA approval. We recommend positioning as "traditional botanical ingredient" or using Article 13.1 general function claims that don't require specific authorization.

Q: Do you provide Prop 65 compliance documentation?

A: Yes. Our extract is tested for California Prop 65 listed substances (heavy metals, PAHs). Test results consistently show levels well below safe harbor thresholds, and we provide a compliance statement with each shipment.

Technical & Formulation

Q: What's the recommended dosage for dietary supplements?

A: Clinical studies typically use 500-2,000 mg daily of standardized extract (divided into 2-3 doses with meals). For our 10% charantin extract, 1,000 mg daily provides 100 mg charantin-the dosage range showing efficacy in glycemic control studies. We recommend starting formulations at 500-750 mg per serving and adjusting based on your target market and positioning.

Q: Does the extract have flowability issues in encapsulation?

A: Our spray-dried extract with maltodextrin carrier exhibits excellent flow properties (Carr Index: 18-22, "Fair to Good" flow). For high-speed encapsulation, we recommend adding 0.5-1% magnesium stearate or silicon dioxide. We can provide flow property testing data and encapsulation parameters upon request.

Q: Can this be used in gummy formulations?

A: The standard extract's bitterness presents challenges in gummies. We recommend our debittered variant (65% bitterness reduction) for confectionery applications. Alternatively, microencapsulation can mask taste-we offer this as a custom service for orders >500 kg. Typical gummy inclusion rate: 100-200 mg per serving.

Q: What's the solubility in water and other solvents?

A: Standard extract: Partially soluble in water (requires agitation), freely soluble in 50%+ ethanol
Water-soluble variant: Instant dispersion in cold water (>95% dissolution within 2 minutes)
For beverage applications, we strongly recommend the water-soluble format to prevent sedimentation.

Quality & Testing

Q: How do you ensure batch-to-batch consistency?

A: Our quality system includes:

Raw material standardization: Only fruits within specified maturity range (Brix 4.5-5.2) are accepted

In-process monitoring: HPLC testing at extraction stage allows real-time adjustment

Batch blending: Final product is homogenized from multiple production runs and tested before release

Statistical process control: We maintain control charts for charantin content (target: 10.0% ± 0.5%)

Coefficient of variation across 50 consecutive batches (2025 data): 3.2% for charantin content.

Q: What's your policy on heavy metals testing?

A: Every batch undergoes ICP-MS testing for 4 heavy metals (Pb, As, Cd, Hg) plus additional elements (Al, Cu, Ni, Cr). We comply with USP <2232> limits and California Prop 65 MADL/NSRL values. For clients serving California market, we provide maximum daily dosage calculations based on actual test results.

Q: Can you provide stability studies for our specific formulation?

A: Yes. For clients placing orders >1,000 kg annually, we offer complimentary stability testing of your finished product (3 time points over 6 months under ICH conditions). This service helps you establish shelf life claims and identify potential incompatibilities early in development.

Commercial Terms

Q: What's the minimum order quantity?

A: Standard specification: 25 kg (1 drum)
Custom specifications: 500 kg minimum
Sample orders: 100g-1kg available for qualified B2B clients (free samples up to 500g for formulation trials; shipping costs apply)

Q: What payment terms do you offer?

A: For new clients: 30% deposit, 70% balance before shipment (T/T)
For established clients (3+ successful orders): 30-day payment terms available
We also accept L/C at sight for orders >$20,000

Q: Do you offer exclusivity agreements?

A: For clients committing to annual volumes >5,000 kg, we can discuss regional exclusivity arrangements. This typically includes customized specifications, dedicated production runs, and priority allocation during peak seasons.

Q: What's your production capacity and lead time during peak season?

A: Annual capacity: 120 metric tons
Typical lead time: 15-20 business days for custom orders
Peak season (Q4): Lead times may extend to 25-30 days; we recommend placing orders by September for December delivery

Q：Where & how can I place an order?
A：You can click the inquiry on Bitter gourd extract or send us an e-mail to contact@joywinworld.com.

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