Abstract
Catalase interaction with anionic type (sodium laurate and sodium dodecylsulfate) and cationic type (dodecylpyrimidinium chloride) surfactants was investigated. Viscosity, electric conductivity, enzyme activity and kinetics depend on surfactant concentration. Corroborating data demonstrate the existence of interaction between catalase and anionic surfactants. Results were interpreted in the terms of non-polar interactions, taking into account both the physicochemical properties of surfactants in aqueous solutions and the better known structure of haemic proteins (haemoglobin) similar to catalase.
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