Overview
Polygonum powder is derived from the dried roots of Polygonum cuspidatum, a plant native to East Asia. It has been used in traditional Chinese medicine for centuries, primarily for its anti-inflammatory and antioxidant properties. The powder is produced through a process of grinding and sieving dried plant material, followed by optional extraction to concentrate active compounds like resveratrol. Industrial buyers should note that quality varies significantly based on source material and processing methods.
Physical and Chemical Properties
The powder typically appears as a fine, brownish-yellow substance with a characteristic earthy aroma. Its bioactive components include stilbenes (particularly resveratrol), anthraquinones (such as emodin), and flavonoids. Solubility characteristics make it suitable for both water-based and alcohol-based formulations. The powder is hygroscopic, requiring careful packaging to prevent moisture absorption. Particle size distribution typically ranges from 80-120 mesh for most commercial grades.
Main Applications
In modern applications, polygonum powder serves as a key ingredient in cardiovascular health supplements due to its high resveratrol content. Pharmaceutical companies utilize it in formulations targeting inflammation and oxidative stress. The nutraceutical industry incorporates it into functional foods and beverages. Traditional medicine practitioners continue to use it for liver protection and detoxification purposes. Recent research explores potential applications in anti-aging skincare products.
Safety and Storage
While generally recognized as safe, proper handling procedures should be followed. Workers should use dust masks when handling large quantities to prevent respiratory irritation. For storage, maintain temperatures below 25°C (77°F) with relative humidity under 65%. Use airtight containers with desiccants for long-term storage. Shelf life typically ranges from 2-3 years when stored properly, though potency of active compounds may gradually decrease.
B2B Procurement Guide
When sourcing polygonum powder, prioritize suppliers who provide comprehensive testing documentation. Key specifications to verify include resveratrol content (typically 5-50%), heavy metal levels, and microbial counts. Consider ordering samples for in-house testing before large purchases. Bulk shipments should be properly sealed in food-grade packaging with moisture barriers. For international trade, ensure compliance with both export and import regulations regarding herbal products.
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