Über die Lipoide des Bacillus Calmette-Guérin (BOG).

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Abstract
BCG was grown for 4 wks. on B. Sauton''s synthetic medium and then filtered off and the lipoids extracted and analyzed by Anderson''s methods. Total lipoids amounted to 25.4%,[long dash]more than in any of the strains of tubercle bacillus. Analyses of the fat, wax, and phosphatide fractions showed no essential differences from the corresponding fractions of tubercle bacilli. The liquid unsaturated fatty acids, so characteristic of other acid-fast organisms, were present. The unsaponifiable portion of the wax, which was acid-fast, obviously differed; it had a M.P. of 63-65[degree], a molecular wt. of 770, and 2 active hydrogens. A possible formula, C51H102(OH)COOH, is suggested.

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