|Class 8 Biology Microorganisms: Friend and Foe||Microbes role in Antibiotics preparation|
Microbes’ role in Antibiotics preparation
Microbes are also used to prepare antibiotics, which are used to treat several bacterial infections. Antibiotics are chemical substances that kill disease-causing microbes. It is quite interesting to find that there are some microbes which cause diseases; on the other hand, some other microbes help in preparation of antibiotics, and thus, cure diseases.
Alexander Fleming, a Scottish scientist discovered the first antibiotic & named it ‘Penicillin’.
Penicillin discovery was ‘a chance’ discovery. Fleming was experimenting with Staphylococcus bacteria. A petridish (cell culture dish) had been left open by mistake, was found to be contaminated by blue-green mold. This visible mold growth inhibited bacterial growth around itself.
Fleming concluded that mould released a substance that inhibited bacterial growth. This substance was the antibiotic which was named ‘Penicillin’ after the mold Penicillium notatum.