The purpose of the unknown bacteria lab assignment was to select an unknown bacteria culture and‚ through a series of metabolic tests‚ identify which bacteria genus resided in the pure culture received. A nutrient broth inoculated with bacterial culture (numbered 45‚ henceforth referenced as U45) was selected and a streak plate was made to isolate a pure culture for use throughout the assignment. From the streak plate‚ several slides were made to determine the morphology of unknown 45. A Gram stain
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Present prospective: Latest literature in the area of natural pigments is divided based on their interest to five main potential topics: 1. The first topic is dealing with the chemical composition and the factors influencing that composition. 2. Second topic is concerned with increasing the yield of the pigment by searching the existing plant and microbial sources in addition to alternative microbial and plant sources. 3. The third topic is dealing with improving the stability and bioavailability
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Chapter 3: H2S Interactions with Hemes and Cytochrome C Oxidase There are three main ways for free hydrogen sulfide to interact with heme centers.2 This includes the binding of H2S to the metal center‚ the reduction of the metal center to produce a radical thiol species‚ and the direct covalent modification of the porphyrin.2 Type I interactions are typically stabilized by a distal imidazole‚ similar to O2 and CO binding onto hemes.2 Also‚ it is important to acknowledge that the iron remains in
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the quality of life for those with chronic diseases. The active ingredient in turmeric is curcumin‚ which makes up to 5 percent of the spice. Curcumin is a polyphenol with powerful antioxidant and anti-inflammatory properties. Polyphenols have the ability to stabilize free radicals‚ which can damage the body’s cells. Diets rich in polyphenols can help support brain health and delay cognitive disorders such as Alzheimer’s disease. One study conducted with a group of individuals from 60 to 90 years
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long‚ you’ll notice that after a while‚ it will turn brown. The reason for this is an enzyme named catechol oxidase‚ a ubiquitous plant enzymes containing a dinuclear copper center (Klabunde‚ Eicken‚ Sacchettini‚ & Krebs‚ 1998). In this experiment‚ we used two different chelators‚ ethylene diamine tetraacetic acid and phenylthiourea to test which would stop the effects of catechol oxidase on potato cells by testing the change in absorbency over time. Our data supported our hypothesis that EDTA would
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bacteria’s ability to produce urease‚ and the presence of ammonia (Pearson’s 2011). If the Urea test were negative‚ the color of the slant would have stayed the same‚ which indicated that the bacterium was unable to produce urease (Pearson’s 2011). Oxidase
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occurs as a result of normal digestion‚ absorption‚ and metabolization of food. Thanks to this‚ green tea can help you lose weight. The American Cancer Society explains: “Green tea contains chemicals known as polyphenols‚ which have antioxidant properties. The major group of polyphenols in green tea are called catechins‚ and the most important catechin seems to be epigallocatechin gallate (sometimes calledepigallocatechin-3-gallate or EGCG). EGCG may help cause certain types of cancer cells to
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Honey powder goes by many names including granulated honey and dried honey. They all refer to honey that has been dehydrated to the point that it becomes a solid. High fructose honey tends to crystallize naturally and so it is likely that the use of honey powder has been around as long as humans have been consuming honey. Honey’s use has been documented all the way back to ancient Egypt where it was used as an important dietary supplement as well as for embalming bodies. There are cave paintings
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Microbiology Laboratory Report Identification of Unknown Bacteria 03/10/05- 04/01/05 Authors: Richard Hendricks‚ Jessica Prebish; NMU Abstract: Broth culture 16 was randomly selected by our group and subjected to qualitative tests for taxonomic identification. The culture did appear homogenous throughout the testing period and is currently retained by Northern Michigan University’s department of Microbiology. We suggest that culture 16 is an example of Escherichia coli. Background: Techniques
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similar to those anthocyanin enriched fractions from different Vaccinium berries against colon cancer cell lines; we propose that cytotoxic and antiproliferative effects of V. meridionale berry on SW480 and SW620 cells might be attributed to these polyphenols (McDougall and others 2008; Zhao and others 2004; Katsube and others 2003; Yi and others
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