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A Kabátová

Publications and source records attributed to A Kabátová.

13 recordsLinked to original sources

Biotyping and determination of protein A in Staphylococcus aureus strain of skin origin.

By means of biotyping we have investigated 150 strains of Staphylococcus aureus isolated from people with dermatologic complaints. We have used six main and three additional biotyping tests. The strains under investigation did not form a closed biotype, on the contrary, they showed a certain biotype plurality. The determination of protein A in 150 strains of S. aureus isolated from dermatologic process of men, 15 strains of S. aureus of bovine origin and 50 strains of Staphylococcus with negative coagulase activity have brought the following results: all strains of S. aureus of skin origin (human strains) contain protein A in various quantities keeping within 2-64 U. Only 2 from 15 s. aureus strains of bovine origin contain protein A and there were none in 50 strains of Staphylococcus with a negative coagulase reaction.

Acetoin↗

[Lipolytic activity in some Candida strains (author's transl)].

The authors carried out an examination on the production of lipase in 300 Candida strains. The lipolytic activity was present in the majority of strains. In the 60 of the strains a more precise measurement of lipase production was performed qualitatively in a solid medium according to SIERRA (1957) and quantitatively in a liquid medium by titration with 0.1 N KOH. Furthermore, the correlation was determined between the production of lipase and the Candida growth. It was found that the qualitative proof of lipase in a solid medium according to SIERRA (1957) is a good informative method for determining lipolytic activity in Candidae. A much more sensitive method, however, is the quantitative method in a liquid medium; by this method the authors were successful in determining lipolytic activity even in some cases where the qualitative test was negative. On the whole, Candidae are lipolytically highly active. The mean values of lipase production in the Candida albicans cultures is 622 units in 1 ml of liquid medium; in other strains it is 798 units in 1 ml. There is a direct relation between the density of the culture and the amount of lipase produced.

Candida↗