determinative bacteriology 7th edition it was established that one isolate belong to Nocardia family and the other one belong to Streptomyces species. Our isolates not only shown good antimicrobial activity against the test organisms provided (E. coli‚ S. aureus‚ P. aerogenosa‚ B. amyloliquefaciens) but also able to degrade Castrol oil. Out of two isolates one was able to produce Amylase enzyme but lack in producing other enzymes like beta-Glycosidase‚ Chitinase. Our work can be taken forward to study
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MBK Lab 01 – Lab Report Name: ____________________ Section: ___________________ EXPERIMENT 1 TITLE: Observing Bacteria and Blood OBJECTIVE: To gain functional knowledge of microscope operations through practical applications of a microscope in the observation of bacteria and blood. PROCEDURES: Using the microscope‚ an oil immersion lens and observing Bacteria Cultures in Yogurt . Preparing a Blood Slide and observing Blood: After reviewing the section of the manual
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Disposition/Food Safety: Overview of Food Microbiology July 8‚ 2011 Overview of Food Microbiology OBJECTIVES At the end of this module‚ you will be able to: 1. Explain the structural similarities and/or differences among Gram-positive and Gram-negative bacteria as well as their isolation and identification using serological‚ biochemical‚ and molecular techniques. 2. Identify the functions of the bacterial cell wall. 3. Identify the extrinsic and intrinsic parameters that affect bacterial growth
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Introduction Staphylococcus aureus (S. aureus) was first discovered in the 1880s and is a dangerous and versatile pathogen that causes many types of severe diseases. Most commonly it causes skin infections‚ respiratory tract infections‚ and food poisoning. In the 1940s‚ when the antibiotic medications such as penicillin was discovered and introduced‚ it became a primary treatment for S. aureus infections. However‚ misusing and overusing the use of antibiotics caused the evolution of these bacteria
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chemically combine with oxygen making it unavailable. Anaerobes will grow in this medium. Aerobes can also grow but only in the upper layers of this medium. PURPOSE To identify bacteria based on growth in oxygen at differing levels. CULTURES Pseudomonas aeruginosa or Micrococcus luteus‚ Clostridium‚ Escherichia coli (Aerobes) (Anaerobe) (Facultative anaerobe) MEDIA 3 TSA plates (for anaerobic chamber) CULTURE CONDITIONS • Lightly streak 4 quadrants
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Signs and symptoms of Conjunctivitis‚ Swelling of conjunctiva and watering of the eyes are symptoms common to all forms of conjunctivitis. However‚ the pupils should be normally reactive‚ and the visual acuity normal. Viral Viral conjunctivitis is often associated with an infection of the upper respiratory tract‚ a common cold‚ and/or a sore throat. Its symptoms include excessive watering and itching. The infection usually begins with one eye‚ but may spread easily to the other. Viral conjunctivitis
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The Danger of Antimicrobial Usage: Triclosan Essay Weren’t anti-microbial agents considered safe for humans to use and not suppose to be harmful in nature? In recent studies‚ triclosan‚ an antibacterial compound is shown to be a harmful agent to humans rather than being helpful in keeping bacterial illnesses away. Presently‚ antimicrobials agents triclosan and triclocarban are examples of widely used antimicrobials agents in personal care products in United States and many other countries
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reaction E. aerogenes colonies on EMB are pink E. aerogenes ferments lactose in the medium to produce acid. This lowers the pH and the dyes in the medium it turn pink PEA prevents gram negatives from growing (2) PEA prevents the growth of Gram-negative organisms by disrupting the structure of lipids in the Gram-negative membrane. It also can hamper protein synthesis. Hemolysis is displayed on blood agar plates (2) On the plate the bacteria produces enzymes called hemolysins these enzymes
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my unknown identification was to carry out a gram stain to observe the cell shape and arrangement. My unknown turned out to be gram positive bacteria cocci shaped with long chain cell arrangement. The unknown was gram positive because the cells stained blue-violet ‚this indicate that my unknown has ability to retain crystal violet-iodine after alcohol application on the cells which is a gram positive characteristic caused by more peptidoglycan than gram negative organisms on cell walls . To observe
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Chapter 1 1. The scientist usually considered the first to see microorganisms‚ which he called "animalcules"‚ was A) Redi B) van Leeuwenhoek C) Pasteur D) Tyndall 2. The idea of Spontaneous Generation postulated that A) organisms could evolve into the next generation of organisms B) organisms could spontaneously combust C) organisms could spontaneously arise from other living organisms D) living organisms could spontaneously arise from non-living material 3. The work of Tyndall
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