Nature's Pharmacy
Penicillium mold
Penicillium notatum is a blue-green mold commonly
found on spoiled bread and fruit, particularly rotten tangerines.
Ever since Scottish chemist Alexander Fleming accidentally
discovered the mold's antibacterial properties in 1928, chemists
have used it to produce many varieties of penicillin, antibiotics
that continue to be immensely valuable in treating bacterial
infections.