A new salt and a new process for the recovery of kanamycin
The invention relates to kanamycin lauryl sulphate. Kanamycin lauryl sulphate is obtained by the addition of sodium lauryl sulphate to a clarified culture broth of Streptomyces Kanamyceticus at pH 2 to 6 and especially 3.8. Kanamycin sulphate may be obtained from kanamycin lauryl sulphate by dissolv...
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Zusammenfassung: | The invention relates to kanamycin lauryl sulphate. Kanamycin lauryl sulphate is obtained by the addition of sodium lauryl sulphate to a clarified culture broth of Streptomyces Kanamyceticus at pH 2 to 6 and especially 3.8. Kanamycin sulphate may be obtained from kanamycin lauryl sulphate by dissolving in water, adjusting to pH 9 to 11 by means of an organic or inorganic base, precipitating the lauryl sulphuric anion with Ba(OH)2, separating the precipitate and creating the residual aqueous solution with activated charcoal, adjusting to pH 8.0 with H2SO4 and finally adding methanol or acetone. Alternatively, the kanamycin lauryl sulphate may be dissolved in methanol, the pH adjusted to 8 with ammonia and lauryl sulphate precipitated by addition of sulphuric acid. |
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