Essential Oils Isolated from Artemisia Vulgaris Linn Of Philippine Origin: Its Antibacterial Activity Prepared by: Dr. Jennifer U. Dotado-Maderazo Lyceum of the Philippines University- Batangas College of Dentistry 2010 Introduction and Review of Literature Introduction The Philippines is known for its natural resources‚ being a tropical country‚ its supply of naturally occurring medicinal plants can be observed everywhere. Thus‚ the practice of traditional medicine has been passed
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“DISCUSS THE STRATEGIES THAT ARE USED BY BACTERIAL PATHOGENS TO EVADE HOST ANTIBACTERIAL PEPTIDES AND PHAGOCYTES” The mammalian immune system has two major components; the innate and the adaptive immune system. The innate system is usually the first line of defence and it acts as a strong roadblock to invading bacterial pathogens through direct mechanisms such as inflammation‚ phagocytosis‚ complement system activation‚ antibacterial peptides and indirectly by activating adaptive response through
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sa-PAY-sha). The most common bacteria that can acquire or develop resistance is Pseudomonas aeruginosa (soo-daMOE-nus A-ridge-a-NO-sa). Pseudomonas can develop resistance to several antibiotics. Another bacteria is Staphylococcus aureus (STAFF-ee-loeKOK-us OR-i-us). When resistance develops‚ it is commonly called MRSA for methacillin (METH-a-SILL-in) resistant or ORSA for oxacillin (OX-aSILL-in) resistant Staphylococcus
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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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Microbiology! 1) Groups of Organisms (7): Eukaryote: TRUE nucleus 1. Fungi 4. Bacteria 2. Algae 5. Rickettsia 3. Protozoa ! Prokaryote: NO Nucleus Ribosome is the only Organelle 6. Mycoplasma (7. Viruses: No cell structure‚ ARE NOT CELLS) Microorganisms are: ! UBIQUITOUS! ! HARMLESS IN THEIR NORMAL HABITAT ! OPPORTUNISTIC (If they leave their normal habitat and get into us) 2) Roles of Microorganisms: (Bacteria and Fungi are “Semi-Good”) - digestion -
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with previously in lab. Initially a Gram stain was conducted in order to distinguish the unknown bacterium as a Gram-positive and/or a Gram-negative organism (Lancaster and Bennett‚ 2012; Kellenberger‚ 2001). Based upon the results‚ both Gram-negative and Gram-positive bacteria were observed in the unknown mixed culture (Table 1 and Table 2; Kellenberger‚ 2001). In order to isolate the two different bacteria‚ colonies that grew on the MSA were used to inoculate Gram-positive tests‚ where as MacConkey
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MacConkey Agar test This test is used for isolating the lactose fermenting bacteria from lactose non-fermenting bacteria while inhibiting the growth of gram positive bacteria. The lack of growth from my bacteria indicates that my bacterium has negative result. Mannitol Salt Agar This test is used to observe the difference between gram positive staphylococci bacteria and to differentiate for mannitol fermentation. If a yellow media change is observed then the bacteria has the presence of
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important step to determine which kind of species it is. All cocci bacteria are not gram positive‚ but this lab will examine only this kind because of their influence in human health. Staphylococcus Aureus is a gram-positive coccus bacterium found in humans. It is frequently found on the mucus membrane in the nasal cavity and on the skin. It also infects many people in the hospital‚ also called a nosocomial infection. S. aureus has a large association with clinically significant infections and
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Identification of Staphylococcus aureus and epidermidis Wendy Heck Bio 175: General Microbiology Fall 2012-11-21 Staphylococcus aureus is the most pathogenic for humans and Staphylococcus epidermidis is part of the normal flora and is of low pathogenicity. Staphylococcus epidermidis and Staphylococcus aureus are two medically important species of bacteria. A culture from the nose and throat was taken to perform whether or not Staphylococcus epidermidis or Staphylococcus aureus were detected
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LABORATORY EXERCISE 8-A: Preparation of Bacterial Smear and Simple Staining I. INTRODUCTION Bacterial smears are prepared for the purpose of viewing microorganisms under the microscope. Visualization of microorganisms in the living state is very difficult‚ not just because they are minute‚ but because they are transparent and almost colorless when suspended in an aqueous medium. A bacterial smear is a dried preparation of bacterial cells on a glass slide. Smears may be made from a dry culture
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