Penicillin - William Roberts observed that bacterial contamination is generally absent in laboratory cultures of Penicillium glaucum
Time: 1874
Place: United Kingdom
Details: In 1874, the Welsh physician William Roberts, who later coined the term "enzyme", observed that bacterial contamination is generally absent in laboratory cultures of Penicillium glaucum. John Tyndall followed up on Burdon-Sanderson's work and demonstrated to the Royal Society in 1875 the antibacterial action of the Penicillium fungus.
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