Selenium-enriched Yeast Tablet
Overview
Selenium-enriched Yeast Tablet is produced by cultivating Saccharomyces cerevisiae in a selenium-rich medium, resulting in yeast cells that naturally incorporate selenium into organic compounds like selenomethionine. This process yields a highly bioavailable form of selenium that is safer and more effective than inorganic alternatives. The tablet format ensures precise dosing and stability, making it suitable for both consumer health products and industrial applications. The product is manufactured under strict quality controls to maintain consistent selenium content, typically ranging from 500 to 2000 parts per million (ppm). Its organic selenium content accounts for at least 80% of total selenium, with selenomethionine being the predominant form. This composition mirrors the natural selenium found in foods like Brazil nuts and seafood.
Product Features
The key advantage of Selenium-enriched Yeast Tablet lies in its superior bioavailability compared to sodium selenite or selenate. Clinical studies show absorption rates up to 90%, with reduced toxicity risks. The tablet form provides excellent shelf stability (typically 2-3 years) and prevents oxidation of sensitive selenium compounds. Manufacturers often enhance the product with additional features such as enteric coating for better gastric tolerance or combination formulas with vitamins E and C to boost antioxidant synergy. The tablets are routinely tested for heavy metals and microbial contamination to meet pharmaceutical-grade standards.
Main Uses
In human nutrition, these tablets are used in dietary supplements targeting immune support, thyroid function, and antioxidant protection. Typical dosages range from 50-200μg selenium per day. The animal feed industry incorporates them into premixes for livestock, poultry, and aquaculture to prevent selenium deficiency disorders. Pharmaceutical applications include adjuvant therapy for certain cancers and cardiovascular conditions, where selenium's antioxidant properties are beneficial. Some cosmetic formulations utilize selenium-enriched yeast for its skin-protective qualities. Industrial buyers often purchase bulk quantities for repackaging or incorporation into functional foods.
Culture and Development
The development of selenium-enriched yeast traces back to 1970s research on selenium's essential role in human health. China became a major producer in the 1990s, leveraging its abundant selenium-rich soil resources in regions like Enshi. Modern production uses precise fermentation technology to control selenium incorporation rates. Regulatory frameworks have evolved significantly, with current Good Manufacturing Practice (cGMP) standards ensuring product consistency. The European Food Safety Authority (EFSA) and U.S. FDA have established specific guidelines for selenium supplementation using yeast-based products, recognizing their safety profile.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 22000 or NSF certification. Key procurement factors include: selenium speciation analysis (showing ≥80% organic selenium), heavy metal test reports (especially for arsenic and mercury), and stability data under various storage conditions. Minimum order quantities typically start at 25kg for tablet forms, with price breaks at 100kg and ton quantities. Customization options include tablet size (1-10mm diameter), scoring, and private labeling. Payment terms commonly involve 30% deposit with balance before shipment, with lead times of 4-8 weeks for large orders.
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