on Medicinal Uses of Weeds in Sri Lanka. Tropical Agricultural Research and Extension‚ 10. JAHAN F.‚ LAWRENCE R.‚KUMAR V.‚ and JUNAID M.(2011). Evaluation of Antibacterial Activity of Plant Extracts on Antibiotic-susceptible and Resistant Staphylococcus aureus strains. Available: http: //www.jocpr.com. MENDOZA‚ D. and J.V. SANTOS. (1971). Common Weeds and Their Distribution. Plants of the Philippines. Science Education Center‚ UP. NASCIMENTO G.G.F.‚ LACATELLI J.‚ FREITAS P.C.‚ and SILVA G.L. (2000)
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concentrations used for all the extracts was 500 mg/ml. Methanolic extract of C. album was found to be most active among all other extracts and inhibits Staphylococcus epidermidis‚ Bacillus subtilis‚ Staphylococcus aureus‚ Escherichia coli. The extract of a mixture of solvents was also found to be effective in inhibiting Staphylococcus aureus. Methanolic extract of C. album was found to give a most clear zone of inhibition. The antibacterial activity is attributed to the phenolic content present
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CLASSIFICATION[11] Type I Type I infections are the most common form of the disease. They are polymicrobial and wound tissue isolates identify on an average four different organisms. Causative microbes include a combination of Gram-positive cocci‚ Gram-negative rods‚ and anaerobes. These infections most frequently occur in the perineal and trunk areas in immunocompromised patients‚ particularly diabetics
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28: 39-46‚ 2002. 11. Kooistra-Smid M.‚ Dijk S.V.‚ Beerthuizen G.‚ Vogels W.‚ Zwet T.V.‚ Belkum A.V.‚ Verbrugh H.: Molecular epidemiology of Staphylococcus aureus colonization in a burn center. Burns‚ 30: 27-33‚ 2004. 13. Kooistra-Smid M.‚ Dijk S.V.‚ Beerthuizen G.‚ Vogels W.‚ Zwet T.V.‚ Belkum A.V.‚ Verbrugh H.: Molecular epidemiology of Staphylococcus aureus colonization in a burn center. Burns‚ 30: 27-33‚ 2004.
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unknown cultures were Gram stain‚ Catalase‚ Mannitol Salt Agar (MSA)‚ Blood Agar‚ Novobiocin‚ Coagulase‚ and DNAse (Alachi‚ 2007). Rebekah Worley February 21‚ 2012 Mitchell Section 4 Biol 311 Staining and Identifying Unknown Bacteria Introduction: The microbiology lab up to this point has been used to teach the students how to stain and identify bacteria. There are several types of staining through which the bacteria can be identified based on the color and shape. The staining methods used in the
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identify a Gram(+) as well as a Gram(-) from the species that were given and the experiment proceeded as follows. METHODS The two streak plates made from the mixture of unknown bacteria showed two different colony morphologies. Colonies of Bacteria A were translucent in color‚ circular in form‚ with entire margins and a smooth surface. Colonies of Bacteria B were cream colored‚ irregular in form‚ with undulate margins and an umbonate surface. Two different morphologies allowed Gram stains to be
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Chapter 6 Microbial Growth 1 Growth • increase in cellular constituents that may result in: – increase in cell number • e.g.‚ when microorganisms reproduce by budding or binary fission – increase in cell size • e.g.‚ coenocytic microorganisms have nuclear divisions that are not accompanied by cell divisions • microbiologists usually study population growth rather than growth of individual cells 2 The Growth Curve • observed when microorganisms are cultivated in batch
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Absract The aim of the prac was to identify and isolate Staphylococcus aureus and Eschericia coli in milk and salmonella in poultry.It was to investigate bacteriological quality of milk and poultry. Salmonella is areprobably the most important cause of food borne illness globally.Staphylocooccus aureus all cause food borne diseases if consumed in a contaminated milk. For milk a spread plate method was used and for poultry a streak method was applied using different Medias. All food contain a certain
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the skin and in the nose are called staphylococcus or "staph" bacteria. Usually staph bacteria don’t cause any harm. However‚ sometimes they get inside the body through a break in the skin and cause an infection. These infections are usually treated with antibiotics. When common antibiotics don’t kill the staph bacteria‚ it means the bacteria have become resistant to those antibiotics. This type of staph is called MRSA (Methicillin-Resistant Staphylococcus Aureus). Anyone can get MRSA. Infections
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function. Materials and Methods Over a two week period‚ eight prepared types of test media were provided to identify the assigned unknown mixed cultures. Not all of these tests were performed on every culture‚ as some were used only for gram positive or gram negative bacteria. The tests performed and what constituted a positive or negative test are as follows: Lab day 1; today in lab we obtained the unknown mixed culture “041”and one brain-heart infusion agar (BHIA). The first step was the preparation
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