Microbiology

A Dairy Problem: Listeria monocytogenes I. History One of the earliest detections of Listeria was in 1924 by E.G.D. Murray from rabbits. He isolated Gram-positive rods from a rabbit’s blood in the laboratory. He was unable to classify it with other bacterial genus, thus he decided to call this new species Bacterium monocytogenes. However, only after 1940 that this bacterium was given the genus name Listeria by J.H.H. Pirie. He was able to classify it due to its catalase-positive, Gram-positive rod

Louis Pasteur was magnificently a genius. His life was an example of hard work and persistence. He was called “The father of modern hygiene, public health and much of modern medicine, as well as the father of microbiology and immunology.” As a scientist, he made many discoveries and experimentations that are benefits to human and animals. Although sometimes his claims raised controversies, Louis Pasteur investigated, revised deeper and deeper his claims to bring up more evidences that lead him to

frequently appears in food poisoning outbreaks. Food contamination may occur at any stage of the food chain (harvesting, production, farming, storing) or even in people’s homes. (Mani et al., 2017). With the advent of technology and the improvement of Microbiology techniques, the detection of pathogens has been improving and ensuring new guidelines regarding hygiene, food conservation, and manufacturing process (Arpaia, 2017). By this, it has been vital to developing accurate and efficient methods to detect

CONFIDENTIAL AS/OCT2010/MIC455 UNIVERSITI TEKNOLOGI MARA FINAL EXAMINATION COURSE COURSE CODE EXAMINATION TIME GENERAL MICROBIOLOGY MIC455 OCTOBER 2010 3 HOURS INSTRUCTIONS TO CANDIDATES 1. 2. This paper consists of ten (10) questions. Answer ALL questions in the Answer Booklet. Start each answer on a new page. Do not bring any material into the examination room unless permission is given by the invigilator. Please check to make sure that this examination pack consists of: i) ii) the

Gram Staining Formal Lab Report Miranda King Intro Microbiology Dr. Hendrickson 13 September 2017 Purpose For the purpose of the gram staining experiment was to learn this specific type of staining technique, as well as learn how distinguish the differences between Gram positive and Gram negative stains. This technique uses crystal violet stain, Gram’s Iodine, Ethyl Alcohol, and Safranin. These dyes are used in order to distinguish between the different types of cells. For example

Within a microbiology lab extra precaution must be taken due to the vast amount of different organisms being analysed as infections and diseases may arise therefore it is vital to consider and implement various safety precautions to prevent a breakout. Micro-organisms being examined can be classified as being a pathogen; an agent initiating disease/illness towards its host, for example an infectious particle or organism being able to produce a disease/illness in another organism. An example of a

We report the community of thermophilic bacteria cultivated from Tanjung Sakti Hot Spring in South Sumatera Indonesia that has temperature 80 – 91 0C and pH 7 – 8. Based on phylogenetic analysis, the 16 sequences of 16S rRNA gene fragments obtained from the community clustered within four distinct genera as Anoxybacillus, Geobacillus, Brevibacillus, and Bacillus. Two sequences that have 96% similarity with data sequences in GenBank, are potentially as novel species/sub species. Hot spring is a unique

Tables 1.4 and 1.5 present the detailed properties of biodiesel obtained by synthesis based on the starting oil, as well as a general guide to biodiesel properties with regard to the type of oil contained in chain departure [29]. Table 1.5 shows that it is advantageous to use an oil with short chain and saturated. Indeed, in this case only the calorific value is not favored. The five most common channels in vegetable oils chains are palmitic, stearic, oleic, linoleic and linolenic. As mentioned above

Arkansas Northeastern College Bordetella Lynn Lisk Mr. Morris BI24043A Microbiology 28 March 2017 In the early 1900’s two scientists, Jules Bordet and Octave Gengou, discovered the first bacterium in the Bordetella genus. The genus was named after Bordet. The bacteria within the Bordetella genus are Gram-negative and rod-shaped. These bacteria are typically coccobacilli (coccoid) (Finger). These bacteria usually occur either in pairs or are single. They have a thin murein layer surrounded

According to the book Microbiology an Introduction, “up 40% of the population are reservoir of infection.” (page??). However there are certain types of people that are more susceptible to be a carrier and to develop the disease. University students, military recruits in many different