Ancient Russians didn’t have refrigerators, of course, and their food often went bad. In order to prevent their milk from suffering the same fate, they used to put a frog in the bucket of milk. Now, a group of scientists has finally found out how the frog prevented the milk from going sour.
The group of scientists, led by A. T. Lebedev, knew that the Russian brown frog was used for this technique. They underwent a series of tests with these amphibians and made a remarkable discovery – the frog had antimicrobial substances secreting from their skin. The substances, called peptides, serve the amphibians as a defense mechanism against microbes in their surroundings. These peptides actually produce 21 antibiotic substances, all of which can be found on the skin of the frog. In order to check if there was more to the frog, the scientists performed more tests and managed to expand the whole list of antibiotic substances. Nearly 100 antimicrobial secrets can be found on the frog’s skin!
These findings might help in the battle against Staphylococcus bacteria, Salmonella and other diseases.