AMSTERDAM: Scientists have identified a secret ingredient in honey that kills bacteria.They have found that bees make a protein that they add to the honey, called defensin-1, which could one day be used to treat burns and skin infections and to develop new drugs that could combat antibiotic-resistant infections.
"We have completely elucidated the molecular basis of the antibacterial activity of a single medical-grade honey, which contributes to the applicability of honey in medicine," said a researcher involved in the work from the Department of Medical Microbiology at the Academic Medical Center in Amsterdam.
"Honey or isolated honey-derived components might be of great value for prevention and treatment of infections caused by antibiotic-resistant bacteria," he added.
To make the discovery, researchers investigated the antibacterial activity of medical-grade honey in test tubes against a panel of antibiotic-resistant, disease-causing bacteria.
They developed a method to selectively neutralize the known antibacterial factors in honey and determine their individual antibacterial contributions. Ultimately, researchers isolated the defensin-1 protein, which is part of the honeybee immune system and is added by bees to honey.
After analysis, the scientists concluded that the vast majority of honey's antibacterial properties come from that protein.
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