of Chlorella in flashing light. Plant Physiol. 29: 152-161. 1954. SOROKIN‚ C. and MYERS‚ J. A high-temperature strain of Chlorella. Science. 117: 330-331. 1953. THE OXYGEN AFFINITY OF A FLAVIN OXIDASE INVOLVED IN THE RESPIRATION OF STREPTOCOCCUS FAECALIS 1 2 DONALD J. NIEDERPRUEM AND DAVID P. HACKETT DEPARTMENT OF BioLOGy‚ THE UNIVERSITY OF BUFFALO‚ BUFFALO 14‚ NEW YORK The characterization of the oxidases involved in cell respiration has been based largely on experiments with enzyme inhibitors.
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BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel ‚ heavy metals and other easily degraded petroleum products (National Research Council 1993). Bioremediation
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Oxygen Requirements of Bacteria BACKGROUND The GasPak system is useful for culturing anaerobic bacteria on standard microbiological media because the GasPak generates carbon dioxide and hydrogen. The hydrogen will combine with oxygen present in an anaerobic jar to produce water. This system can reproducibly attain oxygen levels in the parts per million range if used correctly. This is the best method for determining the oxygen requirements of unknown organisms. A candle jar is useful
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previously damaged cardiac valves E. faecium may lead to endocarditis. Although Enterococci are part of the normal flora in humans and animals there are only a few of its species that cause clinical infections. The most common being Enterococcus faecalis‚ which accounts for up to 90% of clinical isolates. However the other species‚ E. faecium‚ particularly the vancomycin-resistant strain that was once nearly 10%‚ is beginning to increase in the amount of clinical isolates. This increase may be a
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Lab Management Assignment Hand Sanitizer 2012 xxx [Pick the date] HAND SANITISER * * A hand sanitizer or hand antiseptic is a supplement or alternative to hand washing with soap and water. * Various preparations are available‚ including gel‚ foam‚ and liquid solutions. * The active ingredient in hand sanitizers may be isopropanol‚ ethanol‚ n-propanol‚ povidone-iodine. * Inactive ingredients in alcohol rubs typically include a thickening agent such as polyacrylic
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Double-J (DJ) stenting is the commonest procedure performed in urology. Patients with stent‚ develop stent infections and stent-related symptoms. Use of antibiotics in patients with DJ stent is rampant. No uniform data is there to prove advantage of antibiotic prophylaxis. Colonial way of life of microorganisms‚ complex microbial assemblages are responsible for formation of biofilm. Both gram positive and gram negative bacteria produces biofilm. Biofilm is an important virulence factor and is main
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CHAPTER I INTRODUCTION 1.1 Background Food is one of human sources of calorie‚ protein‚ fats‚ and nutrition. Yet‚ because of the highly nutritious content‚ food is susceptible to growth of microorganisms. By the presence of microorganisms in food‚ the food is more likely to have shorter shelf life. Thus‚ mostly it is resolved by the addition of antimicrobial substances to food‚ such as condiments and preservatives. Condiments and preservatives could inhibit the growth of microorganisms
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Biocatalysis and Biotransformation Redesigning existing enzymes by protein engineering Metabolic engineering for multistep biotransformation Cyanide Biotransformation Redesigning existing enzymes by protein engineering WHAT IS PROTEIN ENGINEERING??? It is a process of developing useful or valuable proteins which involves * Modification of existing enzymes * Production of new enzymes In other words‚ the design and construction of new proteins or enzymes with novel or desired functions
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Labset One Worksheet 1. Label and describe the function of each of the following parts of the microscope (7) A. The ocular lens/eyepiece transmits and magnifies the image from the objective lens to the eye. B. The body tube transmits the image from the objective lens to the ocular lens. C. The nosepiece is a rotating mount holding many objective lenses. D. The objective lens is the primary lens that gathers as much light as possible from the specimen and brings it to a bright focus
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1.1 BACKGROUND Every activity in modern life is influenced by plastics and many depend entirely on plastic products due to their useful material properties and low production costs. Almost every product is constituted of some kind of polymer; however‚ traditional synthetic polymers (often called plastics)‚ such as polypropylene and polyethylene‚ are derived from non-renewable petrochemicals and are not readily biodegradable (http://www.plastice.org/ fileadmin/files/Brochure_teachers.pdf). The need
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