How does honey kill bacteria?
In a previous post, the use of honey to treat wounds was discussed. Here is a good review of the antibacterial effects of honey.
Key points
- Antimicrobial activity is due to more than the osmotic effect of the sugar content
- The low level of hydrogen peroxide in honey is effective as an antimicrobial agent
- At least some honey sources also have antibacterial activity not related to peroxide
- Honey causes increased lymphocyte (white blood cell) and phagocytic (killing) activity
- Allergic reactions are rare
In another study, 30% to 100% honey concentrations inhibited a wide variety of bacteria. The most sensitive bacteria were Escherichia coli, Pseudomonas aeruginosa, and Haemophilus influenzae. Fungi are less sensitive to honey than bacteria.
7/31/06 15:15 JR
