Escherichia coli

The End Zone: Measuring Antimicrobial Effectiveness with Zones of Inhibition Introduction: A Kirby-Bauer test is a microbiological method used as a form of testing bacterial resistance, it’s also known as a Zone of Inhibition test (1). The way in which the Zone of Inhibition was determined in this experiment was by measuring the diameter of the resisted zone in 3 areas and taking an average. As numerical data was required for this it means that in this experiment the Zone of Inhibition Test was…

1) Figure 1 shows the test results that was entered in to the Api system to give possible causes of a bacterial urinary infection. Three microorganisms where listed, Escherichia coli 1, Serratia odorifera and Klebsiella oxytoca but gave an unacceptable profile due to in all three cases failing to get negative result in the TDA test with detects the use of tryptophan deaminase activity and the NO₂ test, turning nitrates in to nitriles. E.coli is one of the most common causes of an urinary…

Neosporin, Claire’s antiseptic, dial soap, contact solution, and acne cream. The bacterium was most susceptible to the Neosporin, Claire’s antiseptic, and the dial soap. While looking at many charts and dichotomous keys, I began thinking it was Escherichia Coli, but that was not one given to the class as an unknown, which narrowed it down to 4: Enterobactor aerogenes, Klebsiella oxytoca, Klebsiella pneumonia, or Serratia marcescens. A different key online allowed me to plug in all of my tests…

Development and evaluation of an antimicrobial formulation containing the essential oil of Thymus fontanesii Boiss. & Reut . Mebarki Noudjoub , Nabiev Mohamed2, Chader Henni3, Ziane Henifa4, Fazouane Fethia1 1 Food Technology Research Laboratory, FSI, M’hamed Bougara University, Boumerdès 35000, Algeria 2 Department of Chemical and Pharmaceutical Process Engineering, FHC, M’hamed Bougara University, Boumerdès 35000, Algeria 3 National Laboratory of Control of Pharmaceuticals Products (NLCPP)…

Cells such as DH5 α E Escherichia coli that have inactive N-terminals of β-galactosidase can combine with inactive C-terminal β-galactosidase from empty plasmid vectors such as pGEM to create a complete active β-galactosidase, which converts the clear chromogenic substrate X-gal into…

Sara Parks Unknown Report Introduction One of the many reasons to study microbiology is to gain a better understanding of microorganisms and the huge part they play in the world. It is imperative to know the differences between microorganisms. This knowledge is useful in many cases; for instance, a patient with an unidentified infection could be administered effective treatment if one possessed the knowledge to correctly define the microorganism. Furthermore, the purpose of this unknown…

Molecular communication is a paradigm for Nanomachines to exchange information. Due to some of the biological properties, bacteria have been proposed as a carrier for molecular communication, such communication networks are known as bacterial Nanonetworks. The biological property of bacteria is ability to mobilize and carry the information encoded in deoxyribonucleic acid molecules. Bacteria have social characteristic, which provides bacteria to evolve in fluctuating environment using…

have a healthy diet” In other words, food safety is not just about eating balanced and healthy food, but it is about eating safe food and avoiding any kind of food borne diseases, most common: 1- Spongiform encephalopathies • Campylobacter • Escherichia coli infections • Salmonella • Shigella • Botulism More than 200 diseases are spread through contaminated food or water as a result of improper food handling and because there is a misuse of antimicrobial medicines some of the bacteria are…

In medical or science field, biochemical test are used to identify unknown bacteria. In this case three test are essential to identify the unknown #63 and they are MAC agar test, BCP (lactose) broth and SIM deep medium/slant. Methods such as streak plate technique, aseptic technique, and proper handling of the microbe are necessary to apply when conducting these biochemical test. Contamination during the unknown lab project shows carelessness and may put patient in jeopardy due to incorrect…

faecalis, B. subtilis, B. megaterium, S. aureus, S. epidermis, M. roseus, and M. luteus. Additionally, I was also able to reduce the possible bacteria for 7B to one of the gram negative bacteria. The gram negative bacteria included, P. vulgaris, E. coli, C. freundii, E. aerogenes, A. faecalis, and P.…