Nihal Y. Gul, Suna Gedikoglu, Cuneyt Ozakin, Hulya Bilgin, Ayse Topal, Growth of Staphylococcus aureus, Candida albicans, Escherichia coli and Pseudomonas aeruginosa in Propofol, Thiopental and a 1:1 Propofol-Thiopental Mixture, Journal of Animal and Veterinary Advances, Volume 9,Issue 10, 2010, Pages 1432-1435, ISSN 1680-5593, javaa.2010.1432.1435, (https://makhillpublications.co/view-article.php?doi=javaa.2010.1432.1435) Abstract: Extrinsic contamination of propofol is thought to be a source of postoperative sepsis. Researchers studied growth of Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Candida albicans in propofol, thiopental and in a 1:1 propofol-thiopental mixture. All microorganisms were taken from standard stock cultures. Half of the samples were incubated at 20°C and the rest were stored at 4°C for 120 h. Growth of microorganisms in each solution was compared by counting the number of the Colony-Forming Units (CFUs) at 0, 3, 6, 24, 72 and 120 h. Propofol supported the growth of all four microorganims at both temperatures. In contrast, thiopental and the 1:1 propofol-thiopental mixture exhibited markedly bactericidal properties on E. coli, C. albicans and P. aeruginosa and bacteriostatic effect on S. aureus. Keywords: thiopental; mixture;propofol;Intravenous anesthetics;bacteria;growth rate