For experiments 1and 2‚ many different tests were conducted in order to investigate the different microbes found on the different types of turkey sampled. To begin‚ our group obtained 5 different forms of turkey that are encountered in everyday life: Inspirations deli turkey from Hannaford supermarkets‚ turkey bacon‚ turkey jerky from Whole Foods‚ Inspirations ground turkey from Hannaford‚ and a raw whole chunk slice of turkey breast form Whole Foods‚ these foods were considered experiment 1. Experiment
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E. coli O157H7 What is the morphology and gram reaction of this pathogen (2) E. coli‚ including E. coli O157H7 is a gram-negative bacillus. What do (i) O157 and (ii) H7 attached to the name of this bacterium represent (2). The O157 is the O HYPERLINK http//www.emedicinehealth.com/script/main/art.asparticlekey5469 serotype antigen that identifies the E. coli strain‚ and the H7 represents the antigen type on the HYPERLINK http//www.emedicinehealth.com/script/main/art.asparticlekey2416 bacteriums
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1.4.1. Safety Aspects of Probiotics Today‚ there are evidences that probiotic strains used as commercial bacteria are safe to use in applications. The safety of the probiotic products is appraised with the phenotypic and genotypic characteristics and the statistics of used microorganisms (Çakır 2003). Safety aspects of probiotic bacteria include the following requirements. 1. Strains for human use are preferred to be human origin. 2. They are isolated from healthy human gastrointestinal tract. 3
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Fishes of mixed sexes were divided into four groups (n = 21) and kept in glass aquarium containing 15 litre of water. The control and experimental groups I‚ II & III were exposed to 5‚10 and 15ml of dose in 15Litre of different concentration of (25%‚ 50%‚100%) aqueous leaf extract of Annona squamosa in it every alternate day till 30 days. The control group and experimental fishes were fed with pelleted commercial food and worms at 2% of body weight and water was changed daily after 24 hours of feeding
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Immunosuppression: Immunosuppression was performed by giving the animals synthetic corticosteroids (dexamethasone) orally at a dose of 0.25 mg/g/day for 14 successive days prior to inoculation with Cryptosporidium oocysts (Rehg et al.‚ 1988). The mice continued to receive dexamethasone at the same dose throughout the experiment. The oocysts: Oocysts of Cryptosporidium were obtained from naturally infected calves from slaughter houses by collection of scrapings of the ileal mucous membrane and cecal
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ABSTRACT Purpose: To evaluate the antifungal and cytotoxicity activity of four medicinal plants like Mystroxylon aethiopicum‚ Lonchocarpus capassa‚ Albizia anthelmentica and Myrica salicifolia. Methods: Microdilution method and brine shrimp lethality test were employed to evaluate antifungal and cytotoxicity of plant extracts. Results: Lonchocarpus capassa leaf extracts exhibited antifungal activity against tested fungal strains with MIC range of 0.78 – 3.125 mg/mL with LCLA extract inhibiting C
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Effects of Antiseptics and Disinfectants Purpose: The purpose of this lab is to discover substances that can slow the growth of‚ or kill‚ microorganisms. Hypothesis: The antiseptic that will prevent the growth of bacteria the most is iodine. The disinfectant that will prevent the growth of bacteria the most is bleach. Procedure: To begin the lab‚ turn the agar plate over and divide the plate into four quadrants and label the agar plate whether you
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Bacterial Transformation Lab Introduction: In this experiment we transformed a strain of E. Coli bacteria without antibiotic resistance with plasmid DNA. This plasmid produces a fluorescent green glow under black light due to the gfp(green fluorescent protein) as well as antibiotic resistance. E. Coli cells will be plated on an agar medium‚ some with and some without the antibiotic ampicillin. Only bacterial cells that contain the plasmid will survive the ampicillin and produce the green glow
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Case studies Spring 2011 (60 points) Each illness is caused by a bacterium (NOT viral) Choose one of the three cases and complete the assignment by following the guidelines. Write a typed‚ well constructed (complete sentences‚ proper grammar) report of not more than three double spaced pages (4 points). Devote at least one paragraph to answering each of the 6 questions. (8 points each) Include a reference section with at least 4 citations including at least one published reference. Use
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biofilms When bacteria is threatened by antibiotics treatment that can kill them‚ or when a strong immune system responses to bacteria and produce cytokines or other agents to eliminate it from the body‚ Bacteria has the choice of either staying as individual and die or change their form to make biofilms. Biofilms are communities or bacteria binds together in large groups and make a sticky mesh to make themselves resistant against antibiotics. Some drug that can kill single bacteria will not
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