| Chick Embryo Extract, Ultrafiltrate is used as a supplement in some growth media formulations. It is prepared by blending 11-14 day old chick embryos in a balanced salt solution (3X embryo volume). The solution undergoes centrifugation to remove larger particles and debris. The supernatant is subjected to an ultrafiltration step with a 10kD MW cutoff to remove protein from the solution, producing a clear, amber liquid. This liquid is sterile-filtered. Animals are sourced from a specific USDA-Registered facility using a veterinary-inspected flock. Final processing at an ISO9000 facility. Chick Embryo Extract, Ultrafiltrate is protein free. It does not support the growth of viruses. Appearance: Pale-yellow, clear, solution Total Protein (Biuret): ~0.0g/dL Sterility (per 9CFR 113.26): Negative Mycoplasma (per 9CFR 113.26): Negative Osmolality: As Reported Microbial Testing: Pullorum typhoid, Galisepticum, M. synoviae, M. meleagridis): Negative Recommended Dilutions: 1ml of extract/100ml of media Storage and Stability: Chick Embryo Extract, Ultrafiltrate is protein-free, thus, it will not break down. May be stored at RT. Stable for 12 months after receipt. Storage at 4C extends the stability for an additional 3-6 months. Some precipitate has been observed when frozen. Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures. |
