Gram staining

2.0 INTRODUCTION Consumption of foods and beverages that do not have added preservative but able to have a longer shelf life has become very popular among the consumer. In order to improve the shelf life of a food product, adding natural food extracts that act as the antimicrobial are able to inhibit or supress the microbial growth (Martin et al 2009). Microbial growth, pH and the storage temperature are the important measure of the shelf life and quality of a food product (Fellers 1988;…

Effect of different cleaning products of the growth of K12 strain Escherichia Coli? Which household cleaning product (hydrogen peroxide, Pine-sol, Clorox Bleach, Mr Clean antibacterial liquid cleaner) is the best inhibitor of K12 Escherichia coli (E. coli) growth? The manipulated variable was the cleaning product or disinfectant on used of the Whatman antibiotic assay paper disc. The dependent variable is the zone of inhibition of the prokaryotic bacteria E. coli. In topic one IB requires that…

GENTAMICIN The drug selected for study is Gentamicin. Gentamicin is an aminoglycoside antibiotic composed of a mixture of related Gentamicin components and fractions and is used to treat many types of bacterial infections, particularly those caused by Gram-negative organisms. Isolation and Preliminary studies 2 demonstrated that it is a mixture of basic, water soluble antibiotic containing the aminocyclitol 2-deoxystreptamine and two additional amino sugars. Chromatographic separation of…

bacterium was also plated on a MAC plate, which is both selective for gram-negative bacteria and differential as well. On the NA plate, bright red colonies were present; on the MAC plate there was bacterial growth as well, but no color change was observed. This lack of color change on the MAC plate indicated that the bacteria did not ferment lactose. A Gram stain was then performed to confirm that bacteria #12 was indeed gram-negative and also showed that it was rod shaped. Following the…

Zander Bates is currently 12 years old and attending Martha Brown Middle School. Zander loves adventure, action books, and movies so he wrote about King Arthur but named him King Anchor as a joke. It was based on a book called The Sword and the Stone, or The Excalibur. It’s also based on the movie King Arthur. Zander has a sister named Lyla who is eight years old, two cats, and one dog. He also lives with his mom Janna, who is 42 years old and his dad Thomas, who is 42 years. Zander has two…

Matt Roche and Jaimie Warren Too are a duo which created the show “Whoop Dee Doo!” This show is a live show for kids. The show “Whoop Dee Doo!” balances art, humor, and entertainment while providing those involved a creative outlet. The show utilizes its space to create a different world which is what the content of the show is based on. In the specific segment I watched, the duo picked a space and had ten days to transform it into their vision. They collaborated with high school students to…

When the egg was placed into syrup, a hypertonic solution, it shrunk in size. This result supports my hypothesis. The mass of the egg before it was placed in syrup and after it was placed in syrup changed drastically. There was a 16 g decrease in mass that happened to the egg during its time in the syrup. Both the long and short circumference of the egg decreased. The long circumference before the egg was placed in syrup was 18.75 cm and after it was taken out of the syrup the long circumference…

Introduction Elena Muhs was contacted by the company Tantrum Toys to test a new bubble solution they had created to see if it would make bigger, longer lasting bubbles compared to other formulas. Her group was instructed to test six bubble solutions, one of which was Tantrum Toys new solution and another was Tantrum Toys currently marketed solution. Each solution was identically packaged and marked with only a solution number in order to eliminate the possibility of bias in the laboratory. Muhs…

Discussion Microscope is an optical instrument that have magnifying lens which is used for inspecting objects that is too small to be seen or to be seen distinctly and in details by the unaided eye. Microscope also is an optical instrument that keep observe specimen in resolution and magnitude way. However, there are some microbes such as viruses that cannot be observe by certain microscope and this microbes has to be observe using electronic microscope which has more magnification power. In…

L.B. Agar Lysogeny broth (LB), a nutritionally rich medium, is primarily used for the growth of bacteria. The abbreviation is commonly taken to mean Luria broth, Lennox broth, or Luria-Bertani medium. According to its creator Giuseppe Bertani, the abbreviation LB was actually intended to stand for lysogeny broth (1). The formula of the LB medium was published in 1951 and continues to be the most common media used today (2). There are several common formulas of LB. Although they are different,…