Project Title: Examination of bacterial content of sea water samples from selected sites in South East England Introduction Over the past few years coastal beaches across the UK has seen lavished with recognition for their cleanliness‚ by sections of the media and various organisarions. Majority of these beaches have been awarded the Blue flag award in recognition for meeting set criteria on various standard including cleanliness‚ water quality‚ environmental management and environmental education
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Project 1: Antimicrobial Activity of Soil Isolates John Franklin Farrar Department of Biology and Microbiology and Biology Address BOX 22750 BOWEN HALL‚ RALEIGH‚ NC‚ 27607 Abstract: Isolation and characterization of microorganisms is a practice that aids in Increasing ones knowledge of a laboratory setting and it helps improve on Using sterile technique. Isolates of soil microbes can be categorized and Characterized based on a number of criteria ranging from gram-staining
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The purpose of this experiment was to observe how the change in solvent polarity affects the rate and to determine the kinetics of a solvolysis reaction. In this experiment‚ we used 1-chloro-1-phenylethane in acetone in one reaction with 50% ethanol-50% water and in another reaction with 40% ethanol-60% water. To monitor he rate of reaction‚ we would need the concentration of the alkyl chloride at the beginning of the reaction and at a time t‚ but since we did not determine the concentrations
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is then added as a mordant to form the crystal violet and iodine complex so that the dye cannot be removed easily. This step is usually called fixing the dye. However‚ the next treatment with a decolorizer‚ which is a mixed solvent of ethanol and acetone‚ dissolves the lipid layer from the gram negative cells. The removal of the lipid layer increases the discharge of the primary stain from the cells into the surrounding solvent. On the other hand‚ the solvent dries out the thicker Grampositive cell
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reaction got faster as the polarity increased. This is because SN1 reactions work best with polar protic solvents as they stabilize the carbocation. Therefore‚ as seen in the polarity chart in the data sheet Table 4‚ we can see that the 70:20 water and acetone ratio gives the fastest reaction as the more water there is the better‚ as water is polar protic and allows the reaction to occur faster. 6. When a different substrate was added there was no reaction seen in the given amount of lab time. This happened
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Diabetes is an example of a non communicable disease. I chose diabetes because it is a very common disease that a lot of people live with so I would like to learn more about it. I want to learn about the disease itself and the symptoms that are associated with the disease. Then I want to learn about treatments to help with diabetes. And since I don’t have diabetes I want to learn what health practices I need to work on to prevent getting diabetes. These are all things this assignment will help me
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|insoluble |insoluble | |ethanol |fairly soluble |readily soluble | |acetone |very soluble |readily soluble | After looking at the solubility of impure acetanilide in the four solvents‚ water seems to be the best choice as a recrystallizing
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AIMS /OBJECTIVES * To understand the reactions of manganese * To prepare Mn(acac)3 and calculate percentage yield * To calculate the percentage of Mn and acetyl acetone and the empirical formula THEORY Manganese is a first row transition metal that has a tremendous variety of oxidation states that appear in its compounds. The oxidation numbers range from Mn (III) in compounds like Mn(NO)3CO to Mn (VII) in KMnO4
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Glucose Recovery from Sago Hampas by Three Cycles Hydrolysis for Bioethanol Production. of 3. Conversion of Sago Hampas into Fermentable Sugars Performed Using Cellulolytic Enzymes. 4. Conversion of Fermentable Sugars from Sago Hampas Using UPM2 to Acetone- Butanol- Ethanol (ABE) by Clostridium acetobutylicum ATCC 824. 5. Conclusion 2 Introduction • Sago pith residues - one of the abundant lignocellulosic residues available in the state of Sarawak‚ Malaysia (Apun et al.‚ 2000) • 2‚556
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yield and the mCPBA epoxidation reaction was 70% yield. Oxone is the greener alternative because using mCPBA is twice as expensive as Oxone and leaves behind the epoxide plus m-chlorobenzoic acid while Oxone creates non-toxic byproducts and recycles acetone in the epoxidation reaction. Introduction The epoxidation of an alkene creates an epoxide that is reactive to nucleophiles. This is important in organic chemistry as well as biological sciences. For example epoxide hydrolase aids in purification
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