Fresh Sheep Blood in Bulk
Overview
Fresh bulk sheep blood is a nutrient-rich biological fluid obtained during sheep slaughter. Unlike processed blood products, it is collected in its natural state without additives or preservatives unless specified. Its primary value lies in its high protein content (10-15%) and iron, making it a versatile raw material for multiple industries. In many cultures, sheep blood has historical significance in traditional cuisine and remedies. Modern applications extend to scientific research, where it serves as a base for culture media due to its growth-promoting properties. The product requires strict temperature control to maintain freshness, typically delivered in food-grade containers.
Physical and Chemical Properties
Sheep blood is a colloidal suspension with a viscosity slightly higher than water. Its characteristic dark red color comes from hemoglobin, which constitutes about 35% of the red blood cells. The pH ranges from 7.35 to 7.45 when fresh but becomes more acidic as it decomposes. Key components include fibrinogen (clotting factor), albumin, immunoglobulins, and electrolytes like sodium and potassium. Unlike chemically defined substances, its composition varies slightly depending on the sheep's diet and health. When exposed to air, it coagulates rapidly unless treated with anticoagulants such as heparin or citrate.
Main Applications
In the food sector, sheep blood is a key ingredient in black puddings, blood tofu, and protein-enriched sausages. Its binding properties and umami flavor enhance texture in processed meats. Some Asian cuisines use it in soups or as a nutritional supplement. Biomedical industries utilize defibrinated sheep blood for bacterial culture media, particularly in microbiology labs diagnosing pathogens. The pet food market incorporates dried blood plasma as a palatability enhancer. Traditional medicine systems prescribe it (usually cooked) for anemia treatment, though such uses lack extensive clinical validation.
Safety and Storage
As a perishable animal-derived product, sheep blood poses microbial risks if mishandled. Suppliers must adhere to HACCP principles, ensuring sterile collection and rapid chilling. Salmonella and E. coli are potential contaminants requiring testing. For storage, unprocessed blood lasts 24-48 hours at 0-4°C. Freezing (-18°C) extends shelf life to several months but may affect some functional properties. Always use leak-proof, labeled containers to prevent cross-contamination. Transport requires refrigerated vehicles with temperature monitoring, especially for international shipments complying with ISPM 15 standards.
B2B Procurement Guide
Buyers should prioritize suppliers with abattoir partnerships to ensure traceability and freshness. Certifications like EU Food Grade or USDA approval indicate compliance with safety standards. Request COAs (Certificates of Analysis) for microbial counts and anticoagulant details if treated. Order volumes typically start at 20-liter containers, with discounts for bulk purchases (>200 liters). Consider logistical costs—local sourcing reduces expenses compared to imported frozen blood. For niche applications (e.g., research), specify requirements like defibrination or sterile filtration. Contracts should include rejection clauses for substandard shipments.
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