Experiment 1: Isolation of Casein from Milk * pH of milk – 6.6 * milk = 87.1% water‚ 4.9 % CHO 3.9 %‚ fats‚ 0.7% minerals Experiment 2: Protein Hydrolysis and Characterization | Reagents | Principle | Test for | Positive Result | Negative Result | Biuret | CuSO4‚ NaOH | Complexation of Cu+2 with amide N atoms | Polypeptide bonds | Violet/purple solution | Blue color solution | Sakaguchi | 10% NaOH‚ 0.02% α-naphtol solution‚ 2% NaOBr | arginine condenses with α-naphtol and NaOH
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Isolation and identification of an unknown bacterium Pillay‚ Esmerelda (209504371) School of Biochemistry‚ Genetics and Microbiology Department of Microbiology University of Kwa-zulu Natal 25 October 2010 ABSTRACT Different types of bacteria in various forms are found all around us‚ and it is a microbiologist’s job to be able to identify these bacteria. Using various staining techniques and physiological tests‚ an isolated bacterium can be identified. In this experiment‚ a single bacterial
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Ibraheem Khudeish Benefits of using social media networks as a marketing strategy As the digital marketing is becoming more and more and popular‚ business owners are investigating how social media networking can benefit their business growth and development. Facebook‚ Twitter‚ Youtube and Linkedin are the top social networking sites that social media managers tend to use. A very obvious benefit of using social media networks as a marketing strategy is the cost. The classic way of advertising
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Paper 1: The Effect of 21st Century Technology on Human Social Interaction Breanna Cummings Humanity has come far from its primitive beginnings. From sticks and stone wheels to the fantastic technology of today. Each tool made toward the betterment of life more wondrous – and many times more dangerous – than the next. Humans have come from stone tools to hydrogen bombs. Humanity has become so accustomed to – so connected to -- technology that it can no longer live without
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10/22/01 The Tragedy of Araby In James Joyce’s Araby‚ a young boy finds himself in love with an older girl. The girl‚ Mangan’s sister‚ refuses to love him back and instead ignores him. This crushes the boy and makes his hunger for her even more stronger. He sometimes finds himself hopelessly alone in the darkness thinking about her‚ awaiting for the day she would recognize his devotion to her. " At night in my bedroom her image came between me and the page I strove to read (805)." "At
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Isolation in light and shadow The painting “New York Movie” is an incredible painting with significant use of light and shadow and the contrast of warm and cool colors. It’s not just a painting of a nicely dressed lady in a theater. It’s very intense and strong. Edward Hopper defines the isolation of urbanites by the design of this painting. The arrangements of figures and settings capture the moment of “not belonging”. By the composition‚ contrast of colors and the use of light and shadow‚
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Isolation of Caffeine in Tea Introduction Today’s world is addicted to coffee and tea for an easy wake up. Both contain caffeine‚ a drug known for its stimulant properties. Tea‚ by weight‚ contains approximately 2-4% caffeine‚ and the average cup of tea has anywhere from 40 to 120 mg of caffeine (Landgrebe‚ 327; Mayo Clinic Staff). According to the American Heart Association‚ caffeine not only stimulates the brain and nervous system‚ but it releases fatty acids from adipose tissue‚ and affects
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Teenagers use technology for a lot of uses. They can discover their passion for their future career. They can also do many of different things that will have a beneficial effect on them. Technology can also have a negative influence on them. It can distract them from more important issues around them than knowing what their friends did in the weekend. Teens sometimes know how to use technology to their advantage. Technology and Social Media has a positive influence on teens if they know how to use
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place of Information Communication and Technology is of great importance. ICT is an integrated system of communication and technology. ICT allows for the handling of information and brings together the various forms of communication. ICT encompasses a number of technologies that include capturing technologies processing technologies‚ communication technologies and display technologies (Hamelink‚ 1997). Another school of thought defines ICT as systems‚ technologies‚ tools and services that allows for
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well mannered‚ polite‚ and well civilized. Sometimes people can get positioned in situations where they are never taught these things in life. These people tend to be caught up in social isolation because they do not mix well with others. In the play called‚ “The Zoo Story” a man named Jerry’s side effects of social isolation shine through as he creates this odd kind of confrontation with another man‚ named Peter. Although it may seem that Jerry is just some schizophrenic lunatic‚ that is not the truth
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