Caterpillar fungus

Authentic Cordyceps sinensis consists of a yellowish-brown caterpillar body and a dark brown fungal stroma (stalk). It typically has 8 pairs of legs, with the middle 4 pairs being the most prominent. In contrast, Cordyceps militaris is usually cultivated on grain substrates, lacks the insect body, and appears as bright orange-yellow fruiting bodies. For B2B sourcing, ensure the scientific name is clearly specified in the contract to avoid substitution.

Quality is primarily graded by size (count per kilogram), dryness, and integrity. Premium grades usually range from 2,000 to 3,000 pieces per kg. Buyers should mandate a moisture content below 10-12% to prevent mold. Additionally, check for 'broken' vs. 'whole' ratios; high-quality batches should have a breakage rate of less than 3%. The internal cross-section of a high-quality specimen should be creamy white with a distinct V-shaped black digestive tract.

Due to its growth environment, heavy metal testing (especially for Arsenic, Lead, and Mercury) is critical and must meet Pharmacopoeia standards (e.g., CP, USP, or EP). Suppliers should provide Pesticide Residue Analysis and Sulfur Dioxide (SO2) residual testing, as sulfur fumigation is a common but often restricted preservation method. Ensure the supplier holds ISO 22000 or HACCP certifications for food safety management.

Professional buyers should request a Certificate of Analysis (COA) highlighting levels of Cordycepin, Adenosine, and Polysaccharides. While Cordyceps sinensis has lower cordycepin than militaris, its Adenosine content is a primary marker for authenticity and potency in traditional applications. DNA sequencing (PCR testing) is the gold standard for verifying the Hirsutella sinensis fungal strain.

The most prevalent risks include weight manipulation and counterfeiting. Some unethical suppliers insert lead or copper wires into the bodies to increase weight, or use glues to join broken pieces. Always require X-ray scanning or metal detection reports for large batches. Using Made-in-China.com's secured payment and inspection services can mitigate these risks by ensuring funds are only released after quality verification.

Cordyceps sinensis is listed under CITES Appendix II in certain regions and is protected in China. Exporting requires a Permit for Wild Plant Management and an Export License. Buyers must confirm the supplier has the legal right to export and can provide the necessary Phytosanitary Certificate. Failure to provide these documents will lead to customs seizure in the destination country.

Caterpillar fungus is highly hygroscopic and fragile. It should be vacuum-sealed in medical-grade plastic bags with desiccant packets and placed in sturdy, shock-resistant outer cartons. For international shipping, Air Freight is mandatory to minimize transit time. Maintain a cool, dry environment (below 20°C) during transport to prevent the degradation of active compounds and insect infestation.

Prices fluctuate based on the annual harvest (April-July). It is strategic to lock in annual contracts shortly after the harvest season when supply is highest. Negotiate based on dry-weight specifications to avoid paying for excess moisture. For long-term partnerships, request tiered pricing based on the Adenosine concentration rather than just physical size to ensure you are paying for biological value.