Growth medium

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  • Tryptic Soy Agar Lab Report

    purpose of this experiment was to examine the different growths of minority organisms within a variety of media cultures. These cultures included types of selective, differential, and enriched media and were applied to split sections on the agar plate. Each of the four broth cultures: Escherichia coli, Enterobacter aerogenes, Staphylococcus epidermidis, and Streptococcus faecalis showed observable growth when applied. The different medias will either promote or inhibit the growth of the organisms allowing their isolation to be possible (Lengeler and Schlegel, 1999). These four types of organisms will react accordingly based on their preferable environmental conditions. Observing their growth…

    Words: 1550 - Pages: 7
  • Bacteria Structural Morphology

    will have a purple butt, and if negative it will have a yellow butt. The Sulfide Indole Motility (SIM) blue cap tube is a semisolid agar and it is also used to determine sulfide production, indole formation and motility in Gram negative bacteria. We will be adding a couple of drops of Kovacs reagent following the incubation of the unknown organism. The indole combines with the reagent and if positive it produces a red layer on top of the medium. If the medium has a hazy growth throughout, then…

    Words: 1262 - Pages: 6
  • Study Of Paragallinarum Reference Millenium

    Materials and Methods Overview The whole study consists of four phases. To start with, the suitable media need to be identified for the growth of Av. paragallinarum. Secondly, the media used in disc diffusion and broth dilution testing need to be validated. This validation process is completed by performing disc diffusion and broth dilution testing of quality control strain on candidate agar or broth. Then, the antimicrobial sensitivity of Av. paragallinarum can be tested on validated media, by…

    Words: 1414 - Pages: 6
  • Probiotic Cream Case Study

    products of milk which date back several thousand years (Sarrela, 2000). According to the definition of the Food and Agriculture Organization of the United Nations, probiotic foods are a group of food products containing one or a mixture of beneficial live bacterial cultures which their consumption leads to a balance in the gut flora and finally the health of humans (FAO/WHO, 2001). More than 500 probiotic food products have been introduced in global markets during two recent decades (Anonymous,…

    Words: 1336 - Pages: 6
  • Analysis Of Bacterium Inoculums

    and AuNPs against the eight chosen S. aureus isolates (four MRSA+VRSA and four MRSA+VSSA) were analyzed through determination of their minimum inhibitory concentrations (MIC) values, minimum bactericidal concentrations (MBC) values, and MBC/MIC ratio by broth micro-dilution method using 96-well micro-titer plates. To each 50 μL of the antibacterial agent dilution, 50 μL of adjusted bacterial concentration inoculum (5 × 105 CFU/mL) were added in the 96-well micro-titer plates, the growth control…

    Words: 834 - Pages: 4
  • Catalase Test Essay

    perform a verity of other environmental requirement/reaction tests. This Includes incubation of the gram positive bacteria on a 6.5% NaCl medium, BHIA (Brain Heart Infusion Agar) medium and a Blood agar medium. Interpretations of these results are as follows. The NaCl 6.5% medium was used to test the bacteria’s ability to survive in a salt rich environment. Most organisms are unable to survive in this type of environment because it is hostile. This test allows us to confirm and narrow down our…

    Words: 1742 - Pages: 7
  • Cross Infection Control Lab Report

    Introduction: Sampling the microbial content of the environment is a recommended practice for hospitals and clinics. Information obtained by environmental sampling has great value in the evaluation of problems relating to housekeeping procedures, disinfectants, air distribution and filtering, traffic control and the influence of specific equipment on environmental contamination. The purpose of this practical is to assess the effectiveness of some cross-infection control measures commonly…

    Words: 1246 - Pages: 5
  • Oral Microbiome Essay

    Oral Microbiome 10: Reflection 3 One a daily basis the human mouth can come in contact with many different materials and organisms. “The human mouth is home to billions of individual microorganisms, including viruses, protozoa, fungi, archaea, and bacteria” (University of Minnesota Department of Biology Teaching and Learning, 2016, p. 21). In specific, during this lab we are looking at Streptococcus mutans (S. mutans) and Lactobacilli. In studies, it has been shown that yogurt has helped…

    Words: 2001 - Pages: 9
  • Gram Unknown Lab Report

    In order to determine the identity of two unknown bacteria, I performed a series of experiments over several days. To begin this process I created a dichotomous key that I utilized as a guide to perform a series of inoculations, while using both selective, and differential media. The series of inoculations eliminated bacterium based on test results until the correct bacteria were both positively identified. On day one of this process I received two bacteria, one labeled 7A and the other…

    Words: 1105 - Pages: 4
  • Unknown Bacteria Report

    The objective of this activity was to use the knowledge that we obtained throughout the semester, with the goal to correctly identify two unknown bacteria. Organism number thirteen is Escherichia coli. On the first day, I conducted a gram stain and noticed that the bacteria were pink, meaning that the bacteria are gram negative. I also recognized that the bacteria were rod shaped therefore they were bacillus. I also noticed that the arrangement appeared to be single celled. I also put the…

    Words: 810 - Pages: 4
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