Extraction of Caffeine from Tea Leaves Marc Tugaoen‚ Kristine Vanzuela‚ Rafael Villanueva‚ Justeen Wong Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment has been divided into 4 set-ups‚ first was the solid-liquid extraction‚ next was the liquid-liquid extraction‚ then the sublimation and last was the melting point determination. The solid-liquid and liquid-liquid extraction were both done during the first meeting‚ the DCM layer was filtered and
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universal language of sport‚ Rugby‚ he can bring his people together. With the help of the Captain Francois Pienaar‚ the captain of the Springboks‚ they changed their nation together as they made the impossible possible- to win the 1995 Rugby World Cup. Nelson Mandela is a well-respected man with a great determination and philosophy. As their newly-elected leader‚ he knew that he has a great responsibility to change his country- but it will start with forgiveness and reconciliation. He even accepted
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1. Introduction of tea industry : * Historical Background: Tea was introduced to Sri Lanka after coffee was destroyed by Coffee Leaf Rust in the 19th century. James Taylor‚ a Scottish planter‚ established the first commercial tea plantation in 1867 at Loolkandura Estate in Kandy District of Sri Lanka. The great success of tea planting attracted English planters and more plantations were established‚ replacing existed coffee fields. Subsequently‚ as the coffee area was not big enough to
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France was awarded the right to host the world cup‚ the world’s largest and most important soccer tournament. As the host of the world cup‚ it naturally helped boost up the economy‚ by accommodating tourists‚ creating new jobs‚ selling merchandise‚ etc. People tend to spend more on hotels‚ meals‚ and of course alcohol.[6] In preparation for the event France spent billions of Euros on infrastructure projects.[7] Many economists believe success in a world cup can boost a country’s economic growth up to
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Extraction of Caffeine from Tea Leaves Department of Biological Sciences‚ College of Science University of Santo Tomas España‚ Manila‚ 1028 ABSTRACT: Caffeine is a white crystalline xanthine alkaloid that acts as a stimulant drug. Caffeine is found in varying quantities in the seeds‚ leaves‚ and fruit of some plants. It is most commonly consumed by humans in infusions extracted from the seed of the coffee plant and the leaves of the tea bush‚ as well as from various foods and drinks containing
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In this lab‚ caffeine was extracted from black tea‚ and green tea through a vacuum filtration‚ and a rotovap. The melting point of the sample of black tea was 219.12-236.05 ˚c‚ and for the green tea it was 176.22-227.6 ˚c. The % error of the melting point indicates how much error there was from the melting point taken experimentally. The % error of the melting point for black tea was 0.44%‚ and for green tea it is 3.15%.Since the theoretical melting point of caffeine is between 235-237 ˚c‚ we can
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The marketing strategy of Vietnam’s tea products: current situation and ways for improvement Table of Contents Table of figures 4 Abstract 5 1 Introduction 5 1.1 Research background 5 1.2 Rationale for the topic 6 1.3 Research objectives 7 1.4 Research questions 7 1.5 Research significance 8 1.6 Research limitations 8 1.7 Research structure 8 2 Literature review 9 2.1 Marketing strategy 9 2.1.1 Definition of marketing strategy 9 2.1.2 Factors influencing marketing strategy 10
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TEA PARTY MOVEMENT AND RELIGION IN THE US FROM 2007 TO THE PRESENT 1. The Tea Party Movement‚ a religious movement a) The origins The tea party movement takes it name from the Boston tea party which was a protest by colonists who objected to a British tax on tea in 1773. It was an historic event which marked the beginning of the American Revolution against the British monarchy in the eighteenth century. Moreover the acronym TEA stands for "Taxed Enough Already". Tea Party movement‚ conservative
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Academic Writing Peet’s Coffee & Tea Coffee culture is the “art of enjoying coffee in a relaxing atmosphere” (Elton‚ par.1). Coffee had been Americans favourite beverage since yearly years. Coffee might not be so popular without Starbucks chains which represents the American coffee culture (Elton‚ par.1). However‚ Alfred Peet introduced first gourmet coffee in America before Starbucks was established (“Starbucks”). Alfred Peet was born and grew up in Holland‚ where his father had a coffee business
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"Three Strikes" Sentences: Expand It‚ Preserve It as is‚ or Abolish It Billy Eugene Yeldell DeVry University: CRMJ-300 May 16‚ 2014 "Three Strikes" Sentences: Expand It‚ Preserve It as is‚ or Abolish It Within picking the topic of "Three Strikes" sentencing and weather to expand it‚ preserve it as is‚ or abolish it. This paper will discuss each of these option and which of these options seem to be the best for our county and its people within the criminal justice system. As well as discuss
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