Method for extracting apramycin
A technology of apramycin and tobramycin, which is applied in the field of medicine to achieve the effects of improving utilization, reducing production costs, and reducing environmental risks
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[0044] 18000L of carbamoyl tobramycin fermentation broth with carbamoyl tobramycin content of 2550μ / ml was adjusted to pH 5.5 with 5mol / L HCl solution, then 700L of 732 resin was added, stirred and adsorbed for 8 hours, and then the resin was collected. And move it to a resin column, use ammonia water with a concentration of 2 mol / L as the eluent for elution, collect 2100 L of eluate, and the content of carbamoyl tobramycin is 18000 μ / ml.
[0045] Adjust the concentration of carbamoyl tobramycin in the eluate to 25450 μ / ml, heat to 80-90° C., and hydrolyze for 2 hours.
[0046] Then use the HCl solution with a concentration of 2mol / L to adjust the pH of the hydrolyzed solution to 8.5, and then add it to the D151 resin column for adsorption. Carry out elution for the ammoniacal liquor of 0.5mol / L, the flow rate of controlling ammoniacal liquor is 2000ml / min.
[0047] During the elution with ammonia water, the components of the eluate were monitored by TLC thin layer chromatogr...
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