The antibiotic penicillin was initially isolated from the organism Penicillin notatum, which essentially is a fungus. Alexander Fleming discovered this unintentionally during his observation that Penicillin notatum prevented the growth and accumulation of bacteria. After this, many physicians began to realize that penicillin could be used as an antibiotic in medicine. Therefore, C. Penicillin notatum is correct.
Penicillin was first isolated from Penicillium notatum, a type of mold, by Alexander Fleming in 1928. Large-scale production of penicillin for medical use began during World War II.
Penicillin, one of the most widely used antibiotics in the world, was first isolated from Penicillium notatum, which is a type of mold.
Alexander Fleming discovered the antibiotic in 1928 when he noticed its antibacterial properties on a bacterial culture plate. The development of penicillin as a useful drug was slow initially, but during World War II, the need for nontoxic antibiotics led to a team effort to produce large quantities of penicillin for the treatment of bacterial infections.
