Cent. Eur. J. Biol. • 8(10) • 2013 • 943-957 DOI: 10.2478/s11535-013-0209-6 Central European Journal of Biology New perspectives on antibacterial drug research Review Article Joanna Ziemska‚ Aleksandra Rajnisz‚ Jolanta Solecka* Laboratory of Biologically Active Compounds‚ National Institute of Public Health - National Institute of Hygiene‚ 00-791 Warsaw‚ Poland Received 14 March 2013; Accepted 10 May 2013 Abstract: Bacterial resistance to commonly used antibiotics is constantly
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2.1 Bioreactor configuration: Stirred tank bioreactor is a cylindrical vessel. The semi-circle bottom of the cylindrical vessel was made of stainless steel with an internal diameter of Ti=8 inch‚ outside diameter 10 inch and height of vessel 24 inch giving it a 3:1 height to diameter ratio for the working volume (Group et al.‚ 2006). The experiments were performed in batch conditions at different temperature‚ pH and atmospheric pressure. The liquid phase was deionized water (28± 0.5°C). Filtered
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1. Introduction Microscopy is an essential technique not only in cell biology but natural science as a whole. We compared different types of microscopic techniques ‚ according to the specimen used and the scope of the experiment. Two specimens‚ stained and unstained‚ containing CHO cells‚ were prepared‚ examined and analyzed under the microscope using bright field (HF)‚ dark field (DF) and phase contrast (PH) settings. In addition‚ the four phases of cell division cycle were estimated.. Bright
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is a practice that aids in Increasing ones knowledge of a laboratory setting and it helps improve on Using sterile technique. Isolates of soil microbes can be categorized and Characterized based on a number of criteria ranging from gram-staining Which is done for this project to enumeration which is quantitative description Based on the amount of microbial colonies available. The Antimicrobial Activity of three different microbes were also tested and results were obtained
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FEMS Microbiology Reviews 27 (2003) 99^127 www.fems-microbiology.org The microbiology of biological phosphorus removal in activated sludge systems Robert J. Seviour à ‚ Takashi Mino‚ Motoharu Onuki Institute of Environmental Studies‚ Graduate School of Frontier Sciences‚ University of Tokyo‚ 7-3-1 Hongo‚ Bunkyo-ku‚ Tokyo 113‚ Japan Received 11 December 2002; received in revised form 18 February 2003; accepted 20 February 2003 First published online 20 March 2003 Abstract Activated sludge
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MASINDE MULIRO UNIVERSITY OF SCIENCE AND TECHNOLOGY P.O. BOX 190-50100 KAKAMEGA FACULTY OF SCIENCE DEPARTMENT OF BIOLOGICAL SCIENCES COURSE TILTE: INDUSTRIAL/FIELD ATTACHMENT COURSE CODE: SBL326 NAME: PAMELA K. MUKWEYI REG. No.: BTE/0517/08 DURATION: 9TH MAY – 20TH JULY 2012 SUBMISSION DATE: ATTACHMENT PLACE:CENTRE FOR MICROBIOLOGY RESEARCH- KEMRI Scope/purpose The Industrial Attachment program fulfils part of the requirement in pursuing the degree
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identified using a method called Gram staining‚ whereby a stain is used to differentiate different types of organisms. Bacteria with and without a cell wall are classified as Gram-positive or Gram-negative‚ respectively. Bacterial types vary by shape and size. Coccus Coccus refers to spherical shaped bacteria that may live as individual cells‚ or pair up to form chains or bunches. Staphylococcus and Streptococcus are the most common bacteria in this group and usually are Gram-positive. These bacteria perform
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apples‚ and papaya. To achieve the most favorable result‚ the prescribed procedure of making wax was exactly followed by weighing the components to the desired proportions-2000:100:50 [2000 milliliters (m1) coconut water‚ 100 ml cooking oil‚ and 50 grams (g) bees wax]. The components were then mixed‚ cooked‚ and cooled. Results show a significant difference in the duration of fruit freshness‚ with the fruits treated with coconut water wax retaining freshness for the most number of days. INTRODUCTION
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battery of tube tests and plates designed to lead to identification of two unknown bacterial species‚ from the combination of all results. A sample of bacteria was used‚ labeled “Sample 4”‚ from which both species was to be obtained‚ one gram positive and one gram negative. Table 1 is a list of the possible bacteria to be identified; the basic ideas and practice of identification of an unknown sample of bacteria are important for a microbiologist to develop. Not only is proper procedural practice
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colonies that are circular and moist. Microbes A are gram-negative cocci. B had moderate growth of yellow punctiform colonies that are circular and moist. Microbes B cells are gram-positive cocci. C had abundant 2mm growth of pink colonies that are circular and have a mucoid consistency. Microbes C are gram-negative rods bacilli. D had abundant growth of 2mm yellow colonies that are circular and have a mucoid consistency. Microbes D are gram-negative bacilli that gave off a fishy smell. Swarming
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