Antimicrobial properties of 11-cyclohexylundecanoic acid
J. Šmidrkal, T. Karlová, V. Filip, M. Zárubová, I. Hrádkováhttps://doi.org/10.17221/181/2009-CJFSCitation:Šmidrkal J., Karlová T., Filip V., Zárubová M., Hrádková I. (2009): Antimicrobial properties of 11-cyclohexylundecanoic acid. Czech J. Food Sci., 27: 463-469.
The fact that milk fat contains many minor fatty acids is mostly neglected. It is known that 11-cyclohexylundecanoic acid is contained in cow’s milk fat in the amount of 0.1–0.2%. It is also contained in human milk. 11-Cyclohexylundecanoic acid was synthesised, purified to 99.5% (GC) and its antimicrobial properties were investigated. It was found that 11-cyclohexylundecanoic acid has inhibitory effects on Bacillus cereus, Escherichia coli, and Fusarium culmorum from the concentration of 0.05 mmol/l, however, no antimicrobial effect on Saccharomyces cerevisiae has been determined. 11-Cyclohexylundecanoic acid was found also in goat and cow milk fat on the level of 0.1–0.2%. It is convenient to hydrogenate the sample of fat before the determination of 11-cyclohexylundecanoic acid by GC method. Keywords:Keywords:milk fat; fatty acids; antimicrobial properties; 11-cyclohexylundecanoic acid; GC