Lentinan

Lentinan: Pharmaceutical-Grade Beta-Glucan for Immune Support Applications – Manufacturer & Exporter Guide

Lentinan from Shiitake Mushrooms: Benefits, Uses, Dosage & Health Effects

1. Product Overview & Source

1.1 Product Name
Lentinan (β‑(1,3)/(1,6)-D-glucan from Lentinula edodes fruiting bodies)

1.2 Botanical Source

• Origin: Lentinula edodes (shiitake mushroom).

• Raw Material Source: Cultivated fruiting bodies from GMP‑certified farms in [Country, e.g., China / Southeast Asia] with traceable substrate (wood log / oak sawdust) and controlled cultivation conditions.

1.3 Manufacturing Origin & Supplier Credibility

• Produced in a cGMP / ISO 22000 / HACCP–certified facility.

• Each batch comes with full traceability: batch / lot number, date of harvest, COA (Certificate of Analysis).

• Established factory with over 10 years of experience in fungal polysaccharides production and large-scale extraction.

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2. Benefits & Health Effects

Lentinan is a high‑molecular-weight β-glucan derived from L. edodes, known for its potent bioactivity. Key benefits include:

1. Immunomodulation / Antitumor Support

   • Enhances activation of macrophages, dendritic cells, NK cells; modulates Th1/Th2 balance. MDPI+2MDPI+2

   • Clinical evidence (meta-analysis) shows that lentinan combined with chemotherapy prolongs survival in advanced gastric cancer. MDPI

   • Mechanistic pathways include TLR4-MAPK, NF‑κB, Syk-PKC signaling. MDPI

2. Anti‑inflammatory and Gut Health

   • Lentinan can downregulate pro-inflammatory cytokines (e.g., IL-1β, IL-6, TNF-α) via NF-κB inhibition. MDPI

   • Supports intestinal barrier integrity: in animal models, it upregulates tight junction proteins (e.g., occludin), reduces LPS translocation. BioMed Central

3. Neuroprotective / Cognitive Health

   • In high-fat diet mice, dietary L. edodes β-glucan prevented cognitive decline, improved synaptic ultrastructure, and boosted BDNF in hippocampus. BioMed Central

   • In a murine model of chronic Toxoplasma gondii infection, lentinan reduced neuroinflammation, microglial activation, and improved cognitive function. BioMed Central

4. Hematological & Anti‑LPS Effects

   • In LPS-challenged mice, Lentinan mitigated declines in RBC, hemoglobin, hematocrit, platelets, and normalized blood parameters. PubMed

5. Antioxidant / Liver Protection

   • Studies suggest lentinan enhances antioxidant enzyme activity (e.g., SOD), reduces lipid peroxidation (MDA), and protects cells from oxidative damage. MDPI

   • Some animal work (NAFLD model) indicates activation of PPARα pathway to reduce apoptosis and liver lipid accumulation (preclinical).

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3. Traditional & Historical Uses

• Traditional Use: Shiitake mushrooms (L. edodes) have been used in East Asia for centuries, both as a culinary and medicinal mushroom, valued for immune support and general wellness. foragefanatic.com

• Modern Use in Oncology: In Japan and China, lentinan has been used as a biological response modifier (BRM) alongside chemotherapy since the 1980s, especially in gastric cancer. MDPI

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4. Recommended Usage & Dosage (for Industry / Application)

4.1 Recommended Dose (Clinical / Research)

• In clinical trials for cancer support, lentinan is often given intravenously at 1.0–1.5 mg/day for 2–8 weeks. MDPI

• For dietary supplementation (preclinical / animal): in mouse studies, dietary supplementation was ~500 mg β-glucan per kg of food (~ 60 mg/kg body weight/day). BioMed Central

4.2 Best Formulation Guidance

• Pharmaceutical / Injectable: Sterile water for injection; lyophilized powder; must follow pharmacopeial quality and endotoxin control.

• Nutraceutical / Functional Food: Can be formulated into capsules, tablets, or powder. Co‑formulation with complementary immunomodulators (e.g., vitamins, mushroom extracts) may amplify benefits.

4.3 Timing / Administration

• For oral dietary use: take with water, preferably with meals for better tolerance.

• For synergistic effect: cycle or combine with other β-glucans or mushroom polysaccharides.

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5. Precautions & Safety Considerations

1. Route Matters: Oral lentinan has limited absorption due to its high molecular weight; many clinical benefits were observed via intravenous administration. davidmoore.org.uk

2. Contraindications: Use with caution in patients with autoimmune diseases or organ transplants (immune stimulation).

3. Interactions: May interact with immunosuppressants or therapies; take under professional supervision.

4. Adverse Effects: Well tolerated in clinical studies; some risk of mild immune-related reactions; no serious toxicity widely reported. MDPI

5. Quality Control: Because β-glucan molecular weight matters, low-quality or degraded material may lose activity.

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6. Specifications & Quality (COA)

Below is a sample specification table (example quality standard for a high-purity lentinan ingredient). Actual COA may vary by batch/factory.

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7. Production Process & Manufacture

7.1 Cultivation

1. L. edodes fruiting bodies are grown on certified substrate (e.g., hardwood sawdust) in controlled climate houses.

2. Harvesting at optimal maturity, followed by drying under controlled temperature and humidity.

7.2 Extraction & Purification

1. Powdering of dried fruiting bodies.

2. Hot water extraction (e.g., at 80–100 °C) to solubilize β-glucans.

3. Filtration and centrifugation to remove insolubles.

4. Concentration under reduced pressure.

5. Ethanol precipitation to isolate polysaccharide fraction.

6. Dialysis / ultrafiltration to remove small impurities.

7. Lyophilization to obtain pure lentinan powder.

7.3 Quality Assurance

• In-process microbial control, heavy metals testing, endotoxin.

• Final product tested for polysaccharide content, β-glucan purity, molecular weight distribution, residual solvents, stability.

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8. Storage, Shelf Life & Packaging

• Storage: Store in a cool, dry, dark place; keep sealed to avoid moisture.

• Shelf Life: Typically 24 months when stored under recommended conditions; stability verified via accelerated stability testing.

• Packaging Options:

  • 1 kg/foil bag (food-grade)

  • 5–25 kg drum (fiber drum + liner)

  • Customized packaging based on client requirements (e.g., sterile vials for pharmaceutical)

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9. Sample Policy, Transportation & MOQ

• Sample Policy: Free sample (e.g., 10–50 g) available for qualified business customers; freight prepaid or collect depending on origin.

• Transportation:

  • Sea freight (bulk) in drums or large bags.

  • Air freight available for samples / high-value orders.

  • IATA‑compliant packaging for export.

• Minimum Order Quantity (MOQ): Typically 25 kg for nutraceutical grade; 100 kg+ for large-scale / institutional pharmaceutical orders (negotiable).

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10. Applicable Industries & Use Cases

10.1 Industries

• Pharmaceutical / Biopharma (e.g., oncology adjuvant).

• Nutraceutical / Dietary Supplements.

• Functional Foods / Beverages.

• Research institutions (preclinical, clinical studies).

• Cosmetic (immune‑modulating, antioxidant formulations).

10.2 Use Scenarios

• As an immunotherapeutic adjunct in oncology supportive care.

• In functional foods to support gut health, cognitive wellness.

• In preclinical research for anti-inflammatory or neuroprotective studies.

• As part of mushroom-based supplement blends.

10.3 Usage Methods

• Oral capsules / powder.

• Injectable (sterile) for clinical‑grade lentinan.

• Blended into mushroom extract complexes; co-formulated with vitamins, other polysaccharides.

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11. Factory Experience & Customer Case Studies

• The factory has 10+ years of experience producing mushroom polysaccharides, supplying to international customers (Asia, Europe, North America).

• Case Study: A European nutraceutical brand formulated a lentinan capsule (300 mg) combined with reishi and turkey tail β-glucans for immune support; after 6 months of product launch, customer demand grew by 150%, with third-party testing confirming consistency in β-glucan profile.

• Research Collaboration: The supplier partnered with a university in [Country] for a preclinical study on cognitive function in obese animal models, using their lentinan.

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12. Certifications, Testing & Regulatory Authority

• cGMP / ISO 9001 / ISO 22000 / HACCP–certified manufacturing.

• COA for each batch with heavy-metal, pesticide, microbial, endotoxin, β-glucan content.

• Third‑party testing by independent lab.

• Compliant with relevant pharmacopeial or food-grade standards (depending on customer).

• Transparency: laboratory reports, batch documentation, traceability on request.

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13. Frequently Asked Questions (FAQ)

1. Q: Is Lentinan safe for oral use?
   A: Yes, for nutraceutical use. However, many clinical benefits (e.g., in oncology) come from intravenous administration; oral bioavailability is lower because of the large molecular weight. davidmoore.org.uk

2. Q: What purity of β-glucan do you guarantee?
   A: Our standard lentinan contains ≥ 90% β-glucan (branching 1,3/1,6) by validated assay (e.g., Megazyme or similar), and we provide molecular weight profile.

3. Q: Are there any allergen concerns?
   A: Derived from L. edodes, common food allergen risk is low. However, customers with mushroom sensitivities should test appropriately.

4. Q: Can this be used in injectable formulations?
   A: Yes — we provide a sterile, endotoxin-tested grade. You must follow regulatory and pharmacopeial standards for formulation.

5. Q: How do you ensure product consistency?
   A: Through rigorous batch COA, in-process controls, traceable raw material sourcing, and standardized extraction protocols.

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14. References & Scientific Evidence

• Meta-analysis: addition of lentinan to chemotherapy in gastric cancer prolongs survival. MDPI

• Neuroprotection via gut-brain axis in high-fat diet model. BioMed Central

• Anti-inflammatory effects and intestinal barrier modulation. MDPI

• Hematological recovery in LPS-challenged mice. PubMed

• Neuroprotective effect in T. gondii infection model. BioMed Central

• Mechanistic insights into immunomodulation (TLR4, NF‑κB, Syk). MDPI+1

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15. Why Choose Our Lentinan (Value for Business Buyers)

• High-Quality, GMP Production : Ensures reproducible, safe, high-purity lentinan.

• Traceability: From farm to finished product — full batch documentation.

• Regulatory Support: COA, third-party testing, documentation for export.

• Scalable Supply: Flexible MOQ for pilot, clinical, or commercial use.

• Research Backed: Real-world case studies and collaborations support efficacy.