of Citrus sinensis on 5 bacteria strains. | 5. State the hypothesis (es)‚ if applicable | | 6. Statement of objectives | To evaluate the antibacterial activity of the crude leaf extract of Citrus sinensis against bacteria strains like Escherichia coli‚Pseudomonas aeruginosa ‚ Klebsiella pneumoniae‚ and Staphylococcus aureus.To be able to determine in which extract (aqueous or ethanol) the antibacterial capacity of Citrus sinensis is most effective. | 7. Variables used – independent
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The Escherichia Coli bacterium was discovered in 1885 by bacteriologist Theodor Escherich. He found the bacteria in the human colon and showed that some strains of Escherichia Coli were responsible for infant diarrhea and gastroenteritis. The Escherichia Coli was originally named Bacterium Coli. The name was changed to honor Theodor Escherich. E coli are normally harmless and are part of the normal flora found in the lower intestines of humans and healthy cattle. Some E. coli serotypes are known
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the mechanism of action for cranberries is preventing bacteria to bind to “host cell surface membranes”. The bacteria that causes a urinary tract infection is Escherichia coli‚ which is more commonly called E. Coli. Cranberries contain phenol compounds known as proanthocyanidins. These proanthocyanidins‚ in particular‚ “inhibits the Escherichia coli bacteria from attaching to the lining of the urinary tract.” (Lynch‚ 2004) So whether it is a glass of cranberry juice‚ a cranberry cocktail‚ or a cranberry
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CHAPTER 1 Introduction and Its Background Introduction Infectious diseases are one of the main contributors to global mortality and morbidity. Infectious diseases are caused by pathogenic microorganisms‚ such as bacteria‚ viruses‚ parasites or fungi. These diseases can be spread‚ directly or indirectly‚ from one person to another. Vaccines‚ antibiotics‚ and many other advances have lessened the impact of infectious diseases. Unfortunately‚ this has not been true everywhere. It has not been true in
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was effective in fighting bacteria. This project interested me because garlic is traditionally used in medicine and is known to combat bacteria. Hypothesis If bacteria is exposed to garlic‚ then the garlic will to abolish the Escherichia coli‚ because the Escherichia coli (E. coli) is usually a weak bacteria. Procedure Have three petri dishes prepared with blood agar‚ and three test tubes with 100 milliliters of milk. Label three test tubes‚ “A‚” “B‚” and “C.” With a toothpick‚ add a small
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UNKNOW BACTERIA LAB REPORT UNKNOWN 36 Introduction The purpose of this lab was to identify two unknown bacteria from a mixed culture. The reason for identification of unknown bacteria was to help students recognize different bacteria through different biochemical tests and characteristics. This is important in the medical field because identification of unknown bacteria can help treat a patient by knowing the contributing source of a disease. Also knowledge of different bacteria helped others
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she decided to see if the stories about garlic are true. You can get a look at her project display in the figure. Figure: Project display for “Garlic and bacteria inhibition.” Hypothesis I believe that garlic will inhibit the growth of the bacillus subtilis bacteria‚ but not as effectively as antibiotics and disinfectants. Independent variables Bacteria-inhibiting agents Dependent variables Amount of bacteria incubated Controls • Bacteria used • Technique and time of incubation Experimental
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kingdom of the animals. The kingdom monera contains primitive organisms. These organisms are very small‚ single celled and do not have a nucleus. They consist of prokaryotes which include species like the bacteria‚ archae bacteria‚ cyanobacteria and mycoplasma. Also‚ some bacteria are beneficial to us‚ such as the ones found in yogurt. But others can cause us to get sick. The kingdom protista as the kingdom monera contains single celled organisms. But these are different of the previous ones because
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several days or weeks. Causes Acute bronchitis can be caused by contagious pathogens‚ most commonly viruses. Typical viruses include respiratory syncytial virus‚ rhinovirus‚ influenza‚ and others. Bacteria are uncommon pathogens but may include Mycoplasma pneumoniae‚ Chlamydophila pneumoniae‚ Bordetella pertussis‚ streptococcus pneumoniae‚ and haemophilus influenzae. * Damage caused by irritation of the airways leads to inflammation and leads to neutrophils infiltrating the lung tissue. *
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Leaf Extract and Garlic (Allium sativum) Bulb Extract against Escherichia coli Is submitted to Mrs. Merlyn M. Gamboa In partial fulfillment of the requirements in Chemistry Submitted by: Del Rosario‚ Lea Joy Salih‚ Chandler Jay Serrano‚ Ayra Mari Sumayang‚ Noel Taguinod‚ Joshua Cedric III – Meyer Date: January 7‚ 2013 Chapter 1 Introduction Background of the Study Escherichia coli is a Gram-negative‚ rod-shaped bacterium that is commonly found in
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