In the unknown identification labs‚ we have identified our unknown as Pseudomonas aeruginosa. Pseudomonas aeruginosa is Gram negative and rod shaped that we found to be motile in the lab. Our strain of P. aeruginosa formed colonies that were round in shape and had scalloped margins on nutrient agar. On our agar slant‚ the P. aeruginosa colonies had a filiform appearance on the edges. I think we correctly identified our unknown as P. aeruginosa because we performed several different tests‚ eleven
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This experiment is to observe the significance of food safety. In addition‚ it will illustrate foodborne sicknesses and how food can be compromised by bacteria. This lab will culture washed and unwashed lettuce‚ as well as fresh unopened milk‚ and milk that has been opened for 7 days. The prediction for this lab‚ is that the unwashed lettuce and the opened milk will have the most bacteria growth. All results are meticulous within the expectations of the lab report. II. Purpose The principle
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What are bacteria? Bacteria are very different from viruses. First of all‚ bacteria are much larger in size. The largest virus is only as big as the very smallest bacterium (singular for bacteria). But bacteria are still microscopic and cannot be seen with the naked eye. They are so small that the sizes of bacteria are measured in micrometers (10‚000 micrometers = 1 centimeter). By comparison‚ the head of a pin is about 1000 micrometers wide. Though more complex than a virus‚ the structure of a
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Introduction: Sulfa drugs are any member of a group of synthetic antibiotics containing the sulfanilamide molecular structure (Figure 1). Sulfa drugs were the first class of antibiotics to treat and prevent bacterial infection in humans. Sulfa drugs have been used less frequently due to improved antibiotics that are more effective‚ have less side effects‚ and decreased drug resistance.1‚ 2 Sulfonamides are still used today as an anti-bacterial medication and for the prevention of burns. The antibacterial
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INTRODUCTION: Identification of species and origin based on morphological features by using DNA barcoding technique is an important application for molecular biology and genetics. In this study‚ we used special fish called bonito fish. These fishes generally live in relatively warm and hot seas and grow until they reach a length of about 30 inches. Bonito fish have a long pectoral fin and two dorsal fins. Also‚ they have a forked tail. Animal species and their origins can be detected accurately
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RESULT Microbial community analysis Table 1 illustrates the phylogenetic affiliation and the similarity of the bands marked in Fig. 4a which shows the bacterial DGGE fingerprint obtained when ferrous sulfate was used as the energy source (batch-1). Initial sludge had 18 dominant bands out of which 7 bands were not detected on the 2nd day (Fig. 4a) due to changes in the physical condition of the sludge such as aeration and the pH decrease. Dynamics in the microbial community profiling was studied
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The catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme‚ catalase‚ protects the bacteria from the toxic by-products of oxygen metabolism. This enzyme is produced by bacteria that respires using oxygen. The catalase-positive bacteria include strict aerobes. Catalase-negative bacteria may be anaerobes‚ or they may be facultative anaerobes do not respire using oxygen as a terminal electron acceptor. The test reaction is very fast
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The Amplification DNA Extraction from minced meat samples using the Polymerase Chain Reaction (PCR) and Gel Electrophoresis for Purification of the DNA. Date: 14th/21st of October 2016 Partner(s): Aisling Loughman. Aim: The aim of the experiment is learn the technique to extract DNA using minced meat samples (Pork‚ Beef and mixed)‚ amplify the extracted DNA using the PCR Technique and further visualise the extracted DNA by Gel Electrophoresis under UV light. Introduction: “The method
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Eating a hamburger these days is like playing russian roulette with E coli. Every hamburger you eat the chances of contracting the disease gets higher. In Robert Kenner’s Food Inc.‚ Kenner examines the effects that corporate farming has on the American consumer. Kenner shows the industrial production of meat where some people are okay with with feeding animals antibiotics while others are not because it causes the meat to be unhealthy. Food Inc. also shows how the animals are being raised is abusive
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The geographical area - large populations spread over large geographic areas also increases with modern food production and distribution. Where it occurred -A foodborne disease outbreak occurs when two or more people get the same illness from the same contaminated food or drink. The number of people sick from the outbreak -While many of them were found to have sickened a handful of individuals‚ a few stood out as especially wide in scope. Food Safety News has compiled a list of the 10 most harmful
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