منابع مشابه
The Effect of Serum upon the Germicidal Action of Soaps
1. Far more information about the effect of serum or other substances upon the germicidal action of soaps can be obtained by determining the germicidal titers over a wide range of pH than by determining the titer at a single pH. In this way a characteristic curve for each test substance is obtained. 2. The curve for a particular concentration of serum bears a definite relationship to the curve ...
متن کاملThe Germicidal Action of Α-mercapto and Α-disulfo Soaps
1. Certain of the alpha-mercapto soaps and alpha-disulfo soaps are powerful germicides. 2. In the alpha-mercapto series, those soaps with 12 and 14 carbon atoms are most germicidal. In the disulfo series, the dicaprate, dilaurate, and dimyristate are most germicidal. The optimum number of carbon atoms varies with the test organism used. 3. These soaps, like others previously studied, show a mar...
متن کاملThe Germicidal and Hemolytic Action of Α-brom Soaps
1. The soaps of the alpha-brom fatty acids are usually more germicidal than the unsubstituted soaps. Only when B. typhosus was the test organism was there no increase in germicidal action. 2. For any test organism, germicidal action of the brominated soaps increases rapidly with increasing molecular weight up to a certain point, then diminishes. This is likewise true of the hemolytic titer. The...
متن کاملTHE EFFECT OF THE pH ON THE GERMICIDAL ACTION OF SOAPS
1. The effect of the pH on the germicidal action of soaps has been studied. The lower members of the series were found to be most active in acid solution; the higher members, in alkaline. The point of transition varied with the test organism used. 2. This is probably due to the effect of the pH on the dissociation residue and on the solubility of the soap. The dissociation residue may affect th...
متن کاملEffect of the Chemical Constitution of Soaps upon their Germicidal Properties.
Studies on the properties of soaps are of importance because of their common use as detergents, in the preparation of vaccines, in the treatment of disease, and because of their natural occurrence in the animal body where they may have some effect in determining the resistance of the animal organism to infection. Reichenbach (1908) studied the action of soaps on Escherichia coli and found that ...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1929
ISSN: 1540-9538,0022-1007
DOI: 10.1084/jem.50.3.299