fruit used to remove stains from clothing and for washing hands‚ removing rust and stains from metal blades. Dalandan (Citrus aurantium) is an aromatic variety of citrus that produces highly bitter‚ acidic fruits. Escherichia coli‚ a gram-negative bacillus that will appear as blue or violet when Gram stained‚ because it has a thick cell wall that prevents the primary dye (crystal violet) from being decolorized by alcohol. Staphylococcus aureus is a gram-negative coccus that will appear red when Gram
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Harley−Prescott: Laboratory Exercises in Microbiology‚ Fifth Edition Front Matter Preface © The McGraw−Hill Companies‚ 2002 PREFACE Take interest‚ I implore you‚ in those sacred dwellings which one designates by the expressive term: laboratories. Demand that they be multiplied‚ that they be adorned. These are the temples of the future—temples of well-being and of happiness. There it is that humanity grows greater‚ stronger‚ better. Louis Pasteur (French chemist‚ founder of microbiology
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COVENANT UNIVERSITY Department of biological sciences PROGRAM: MICROBIOLOGY COURSE: MICROBIAL TAXONOMY‚ NOMENCLATURE AND IDENTIFICATION CODE: MCB 122 TOPIC: CLASSIFICATION OF BACTERIA AND VIRUSES PROJECT PARTICIPANTS OBUEKWE CHUKWUEMEKA 12CQ014230 OKAFOR SANDRA-EMMANUELLA 12CQ014231 OLOWOFELA OLUWATOYIN 12CQ014232 OSITA-ORAH ANTHONY 12CQ014233 SASORE YEWANDE 12CQO14236 NWOBI CHIZITERE 12CQ014229 OYEKAN TOSIN 12CQ014235 SOREMEKUN MAYOMIKIUN 12CQ014238 SHODEKO TOBI 12CQ014237 INTRODUCTION TO THE
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Lab Report: Antibiotic Evaluation by the Kirby-Bauer Method Introduction Chemical antimicrobial agents are chemical compounds capable of either inhibiting the growth of microorganisms or killing them outright. Those which are taken internally to alleviate the symptoms of or promote healing from disease are called chemotherapeutic drugs‚ and among these is a class of compounds called antibiotics. In order for a chemotherapeutic drug to be classed as an antibiotic‚ it must be produced by
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INTRODUCTION Isolation of Aspergillus niger from garden soil for the production of amylase enzyme and effect of various parameters on enzyme‚ production is the main aim of this study. Enzymes are protein catalysts synthesized by living systems and are important in synthetic as well as degradative process. Amylases are starch degradative enzymes that catalyze the hydrolysis of internal a-1‚ 4-0-glycosidic bonds in polysaccharides such as starch in to simple sugar (glucose and maltose). It is produced
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Food ©2007 Global Science Books Food Preservation – A Biopreservative Approach Iraj Rasooli Department of Biology‚ Shahed University‚ Opposite Imam Khomeini’s Shrine‚ Tehran-Qom Express Way‚ Tehran‚ Iran Correspondence: * rasooli@shahed.ac.ir ABSTRACT Preservative agents are required to ensure that manufactured foods remain safe and unspoiled. Antimicrobial properties of essential oils (EOs) reveal that Gram-positive bacteria are more vulnerable than Gram-negative bacteria. A number of EO
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Vol 454j14 August 2008jdoi:10.1038/nature07190 REVIEWS Genomics of cellulosic biofuels Edward M. Rubin1‚2 The development of alternatives to fossil fuels as an energy source is an urgent global priority. Cellulosic biomass has the potential to contribute to meeting the demand for liquid fuel‚ but land-use requirements and process inefficiencies represent hurdles for large-scale deployment of biomass-to-biofuel technologies. Genomic information gathered from across the biosphere‚ including potential
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of chaos. The Black Death did not cause the chaos‚ but the plague definitely contributed towards it‚ as well as making more problems. The Black Death erupted in the Gobi desert in the late 1320’s. There is no real explanation why. The plague bacillus was alive and active long before that. Europe had suffered from an epidemic in the 6th century. But the disease became relatively dormant in the following centuries. It is said that it was due to the climate beginning to cool in the 14th century
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of all races. According to the United States government‚ more than 14 million people live with rosacea. Although the exact cause of rosacea is unknown‚ studies have linked the development of this condition to the following: A bacterium called bacillus oleronius‚ which may cause an overreaction of the immune system. A Helicobacter pylori infection‚ which causes compromised gut and immune health. A malfunction in the way your body processes a protein called cathelicidin‚ which is designed
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GMO’s Research The issue of genetically modified organisms is drawing unprecedented media attention due to its potential of bringing about fundamental changes in the genetic make up of living beings. Following paragraphs throw some light on this controversial subject. What are Genetically Modified Organisms? The genetically modified organisms or GMOs are the animals and plants that are genetically modified in order to develop the useful or desired traits. The techniques used to carry out genetic
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