POLYMER SYNTHESIS AND PROPERTIES AIM: The aim of the experiment was to prepare three different polymers‚ namely nylon 66‚ Agar Gel and slime‚ being able to differentiate between the configuration and analysis among the three structures‚ noting the physical characteristics of each polymer and the chemical reactions that occur during the formation of the polymer. Pre- lab questions 1. Is Nylon 66 a step or chain – growth polymer? Define both types of polymerization in your answer. Nylon 66
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aeruginosa was gram-positive and therefore it would be susceptible. That was my hypothesis.We divided antiseptic agar plate into quadrants and divided antibiotics agar plate into six areas. We wrote the organisms’ name‚ date‚ and the temperature on the bottom of the agar plates. For antiseptic‚ our group used one color code for each quadrant. We streaked the swab in three directions on the agar plate and used sterilize forceps to remove filter paper discs from the container‚ and dipped it into solution
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reactions or metabolic pathways‚ each was used in a way to help recognize those specifics and identify the unknown cultures. The differential tests used to identify the unknown cultures were oxidase‚ catalase‚ lactose and sucrose fermentation‚ Kugler/iron agar‚ nitrate reduction‚ gelatin hydrolysis‚ starch hydrolysis‚ manitol salt‚ MR-VP‚ citrate‚ bile esculin‚ indole‚ urease‚ DNase‚ and coagulase. Material & Methods The tests performed on the unknown bacteria cultures were all used to determine
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Purpose The principle of this experiment is to have a thorough perceptive of: • Culture washed and unwashed lettuce on agar plate. • Culture fresh and opened milk with the same expiration dates. • Explain the significance of food safety. • Illustrate foodborne sicknesses.
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(Pearson’s 2011). Mannitol Salt Agar The Mannitol Salt Agar test was used to test only the Unknown Gram-positive bacteria. One colony from the Unknown 13A plate was used to inoculate the Mannitol Salt Agar Plate. After the plate was inoculated‚ it was placed in an incubator at 35ºC for 48 hours. If the agar surrounding the culture changed from red to yellow the test was positive‚ which indicated that the bacterium was capable of fermenting mannitol (Pearson’s 2011). If the agar surrounding the culture did
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ASEPTIC TECHNIQUES AND SOURCES OF MICROBIAL CONTAMINATION. Introduction The spread of infections has come to a point where it has become catastrophic. Aseptic technique is the method used to prevent contamination of infections. It is widely used in hospitals‚ pharmacy‚ and pharmaceutical industries and in laboratories. Different establishments have come up with more ways to improve infection control. In hospitals health care acquired infections are costing the NHS £1 Billion a year and
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Individual Profile 1. Name: Dr. Aradhana 2. Designation: Reader 3. Department: History 4. Specialization: Ancient/Modern Indian History 5. Coresspondence Address: 52‚Green City Colony‚vill. Sofipur Roorkee Road‚Meerut-250001‚U.P.‚ India 6. Telephone: +91-121-2956041‚ 09759240896 7. E-mail: dr.aradhana@yahoo.co.in 8. Educational Profile: Ph.D. (History) With specialisation in‘Modern Indian History’‚ fromC.C.S.university‚ 1998. Have done M.Phil. with First
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1. Introduction In the modern world‚ when people are busy with heavy workload‚ fast food is likely to be their priority whereas some traditional foods lose their popularity. Nevertheless‚ there are many cuisines that stand out and even be wide-known in all over the world. One of them is Dim Sum - the art of Chinese traditional food. Dim Sum‚ literally means “to touch your heart”‚ is small appetizers that consist of a variety of steamed and fried dumplings as well as other goodies served in steamer
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to his powerful‚ brainwashing speeches; his persuasive book‚ Mein Kampf; and his ability to intimidate people. One of the ways Adolf Hitler had a negative impact on the world is through his speeches. Hitler brainwashed everyone into thinking what he was doing to Jewish people and other religions was okay through his speeches. He used powerful hand motions and emphasized his sentences‚ making him a strong orator. As stated in the
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ABSTRACT Nature has been a source of medicinal agents for thousands of years and an impressive number of modern drugs have been isolated from natural sources Plants used for traditional medicine contain a wide range of substances that can be used to treat chronic as well as infectious diseases. Clinical microbiologists have great interest in screening of plants for antimicrobial activities and phytochemicals as potential new therapeutics. The use of plant extract for medical treatments is enjoying
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