into the cell to be catabolized. Bacillus species are known to produce the exoenzyme‚ amylase. In our experiment‚ we concluded that Bacillus cereus from soil can hydrolyze starch in order to use these starches as a carbon source and use it. But Staphylococcus cannot. Blood agar is an Enriched Media which have been supplemented with 5% sheep red blood cells. BAP tests the ability of an organism to produce hemolysing enzymes that damage/lyses red blood cells (erythrocytes). The degree of hemolysis
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method – In this method‚ the team will get sample to be tested for E. coli or Escherichia coli and Staphylococcus aureus. E. Coli normally lives in the intestines‚ where it helps the body break down and digest the food you eat. Unfortunately‚ certain types (called strains) of E. Cole can get from the intestines into the blood. This is a rare illness‚ but it can cause a very serious infection. Staphylococcus aureus a bacteria capable of food poisoning. This is often caused by improper food handling‚ which
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develop. More understanding the types and morphology of bacteria. Expected experimental result‚ Escherichia coli (E.coli ) is a negative gram bacteria which stain pink colour ‚ while Staphylococcus aureus ( S.aureus ) is a positive gram bacteria which stain purple colour. Materials Bacteria : Escherichia coli ‚ Staphylococcus aureus Crystal Violet Gram’s iodine Absolute alcohol Safranin Methodology As per manual. Discussion Gram staining is a very importance preliminary step to differentiate
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prefers oxygen but it is not necessary for growth. Many of these microorganisms will grow at the top of the tube‚ but will also be dispersed throughout as well. B. Discuss the temperature requirements of the organisms (you grew) in this lab. Both Staphylococcus epidermis and Lactobacillus acidophilus are mesophiles. Mesophiles grow best between 25- 45 degrees Celsius (Alonzo‚ n.d.). In this experiment both bacteria have grown easily at a maintained room temperature of 26 Celsius. C. Discuss under
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A Brief History of Antibiotics‚ Antibiotic Resistance‚ and Antibiotic Alternatives Antibiotic Resistance and Alternatives Antibiotics have been commonly‚ though mistakenly‚ thought of as the ultimate cure‚ for almost all illness‚ for over half a century now. However‚ the intended use of antibiotics is for the treatment of bacterial infections and diseases. Viruses or fungi-related illnesses will not be affected by antibiotics. This misunderstanding of the use of antibiotics has led to overuse
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Appendix A: HACCP PLAN Company name: Kegworth’s stuffed turkey roll Purpose Statement: This manual detail the stuffed turkey roll manufactured in this establishment and provides a full description of the hazards‚ preventative measures‚ corrective actions‚ and verifications used in the safe manufacture of the product at this establishment. Commitment Statement: The owners of this establishment by signature agree to accept and perform the duties described in the HACCP manual and further
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Exercise 5 Introduction: Many different species of bacteria look similar under the microscope and also have the same staining results (ex. Gram stain). To be able to differentiate between the different species‚ one can look at the metabolic differences (fermentation)‚ as well as the environmental condition differences (temperature‚ pH‚ oxygen requirements). Being able to manipulate these conditions in a controlled environment can help to correctly identify the exact bacteria. Different media
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Most cases of bacterial tonsillitis are caused by group A beta-hemolytic Streptococcus pyogenes (GABHS). The oropharynx and Waldeyer tonsillar ring are normally colonized by many different species of aerobic and anaerobic bacteria‚ including Staphylococcus‚ non-hemolytic streptococci‚ Lactobacillus‚
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References: Otto‚ M. (2009). Staphylococcus epidermidis--the ’accidental ’ pathogen. Nature Reviews Microbiology‚ 7(8)‚ 555-567. Frank‚ D. N.‚ Feazel‚ L. M.‚ Bessesen‚ M. T.‚ Price‚ C. S.‚ Janoff‚ E. N.‚ & Pace‚ N. R. (2010). The Human Nasal Microbiota and Staphylococcus aureus Carriage. PLoS ONE‚ 5(5)‚ 1-15. Pommerville‚ Jeffrey. (2011). Alcamo’s Fundamentals of Microbiology. 9th ed. Sudbury:
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is consumed and the ingested microorganism produces toxin itself causes the illness. Some examples of bacteria that cause food are CLOSTRIDIUM BOTOLINUM and STAPHYLOCOCCUS AUREUS • An intoxication may also occur due to consumption of a toxic chemical such as cleaning chemicals. Foodborne Intoxication • Clostridium Botolinum Staphylococcus Aureus 3. Toxin Mediated Infection • Ingestion of a harmful microorganism in food that produces a toxin in the
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