EN
The objective of the study was to establish the antibacterial activity of various types of honey from the 1990 and 1991 harvests, mainly from the Kraków region, and the ifluence of honey heating on this activity. Staphylococcus aureus 606 was used in all examinations as the test strain. The activity of honey against two other strains of staphylococci, Escherichia coli, Salmonella dublin, S. agona and Pseudomonas aeruginosa was also examined. It was found bat various types of honey substantially differ in their antibacteria activity. The most active appeared to be honeydew and lime honey. Four samples of honey were completely inactive. It was also found that a decrease in antibacterial activity after heating at 50—80°C was lower for honey of a higher antibacterial action. This decrease depends also on the type of honey.