Physical and Chemical Properties | This product can regulate cellular immune function, anti-aging, anti-virus effect. It is stable to heat, and the biological activity does not decrease at 80 ℃. After being hydrolyzed into amino acids, the biological activity disappears. Raw material treatment the calf thymus was used as raw material to remove non-thymus tissue such as fat and fascia. After cold storage at -20 ° C., it was washed with sterile distilled water and minced in a sterilized meat grinder. According to the mass ratio of 1:1, the broken thymus and cold water for injection (China water hypotonic extraction, cold melt, can make the active polypeptide fully dissolved in water, improve the yield. Foreign reports, can also be extracted with physiological saline) mixed, placed in 10000r/min of high-speed tissue crushing crusher, mash 1 min to homogenate. Calf thymus [minced] → crushed thymus [cold water for injection] →[10000r/min, 1min] partial thermal denaturation of thymus homogenate, centrifugation, filtration the thymus homogenates were extracted by immersion below 10 °c and then frozen at -20 °c for 48h. After removal and thawing, the mixture was heated to 80 °c with stirring in a water bath for 5min, the temperature was rapidly decreased, and the mixture was refrigerated at -20 °c for 2-3 days. Take out the melt, at 2 deg C, 5000 r/min centrifugation for 40min, take the supernatant, Suction filtration under reduced pressure (filter pulp or 0.22 μm microporous membrane), get the clear extract of active polypeptide. Thymus homogenate [extraction below 10 ℃] →[-20 ℃, 48h] Frozen solution [80 ℃, 5min]→[5000r/min, 40min centrifugation] active polypeptide extract ultrafiltration, purification, subpackage and freeze-drying the clarified extract of the active polypeptide is subjected to ultrafiltration with an ultrafiltration membrane (with a relative molecular mass of less than 10,000 that can be retained) to obtain a refined solution, which is refrigerated at -20 °c. After passing the test, 3% mannitol (excipient) was added, sterile filtered, sub-packed, and freeze-dried to give Thymopolypeptides for Injection. Active polypeptide extract [ultrafiltration membrane] →[Mr<10000] refined liquid [freeze-drying] →[3% mannitol] Thymopolypeptides for Injection (note: the entire process of operation and equipment should be carried out in accordance with the provisions of the aseptic method of operation.) |