collected‚ 5.758g of tea leaves contains 3.96% caffeine. After the purification process‚ 0.2279g of caffeine was obtained from 0.4948g crude extract with 46.06% yield. Melting point determination was used to characterize the caffeine yielded. However‚ the melting point range of the caffeine collected (190°C -215 °C) was lower than the melting point of the accepted value (238 °C) which may be due to experimental errors committed in the extraction and washing process. Introduction Tea has been consumed
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Boston Tea party because the Colonist had enough of the King putting taxes on things without telling them. That night they threw a whole cargo of tea overboard into the sea that came from Britain. The Boston Tea Party had a greater impact leading the colonies towards fighting for Independence from Britain. The King was making taxes without telling the colonists which made them angry because the colonists wanted to talk to the king about the taxes and maybe they didn’t want the tax. The Tea Act was
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Alugbati (Basella rubra) Organic Tea A Science Investigatory Project Submitted as an Entry to The Local Science Fair LPNHS Proponent: Anica Shane V. Cabrera III-RGL Submitted to: Mr. Michael M. Safred Research Adviser August 8‚ 2011 i Abstract Since tea act as newly craze across the world this generation it is a worldly desire to have a cup of it. The main conflict with this study is that teas are said to contain fluoride and caffeine which will contribute
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Marketing Plan: Vita Lemon Tea Environmental Analysis Consumer Analysis Recommendation Company Analysis Agenda 1. Company Background 2. Situational Analysis 3. Recommendations Company Background Year of establishment: 1979 Founder: Dr. Lo Kwee-Seong Different flavors e.g. Low sugar‚ SUPERICY‚ Ceylon‚ LimeLemon‚ Honey Different type of packing e.g. Canned‚ Tetra-pack‚ In bottle. P.E.S.T. Analysis Political environment Economic environment Social environment Technological environment Opportunities
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Abstract This work describes the extraction of caffeine from tea leaves to determine its % caffeine. The extraction process selectively dissolves one or more compounds in a mixture into an appropriate solvent. In this experiment‚ it was visible in the process wherein the components of the tea leaves were dissolved in two solvents‚ water and dichloromethane (DCM)‚ with DCM used for multiple extractions. The organic layer was evaporated and the determined % caffeine was 0.12%. Furthermore‚ the purified
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Agricultural Research Vol. 22 (3): 251 - 262 (2011) Strategies for Competitive Advantage in Value Added Tea Marketing H.M.U.N. Herath and S. De Silva1* Postgraduate Institute of Agriculture University of Peradeniya Sri Lanka ABSTRACT. At present the world tea market is rapidly growing with emerging customer needs. The importance of a change from bulk tea exports to value added tea products is highlighted in literature to face the challenges in an increasingly competitive beverage market
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An early example of a protest at sea was the Boston Tea Party by the Sons of Liberty in Boston in 1773. An entire shipment of tea sent by the East India Company was destroyed by these American colonists in defiance of the Tea Act of 1773. The main goal of the Tea Act was to aid the financially struggling British East India Company by reducing the excess of tea held by the company. Colonists protested to the Tea Act as they believed that it violated their rights as Englishmen to “No taxation without
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3)History 4)Sequences of Festivies -Preceding days - New year’s eve -1st -15th day. -Cuisine. 5)Main Customs. 6)Seen as a public Holiday 7)Evolution II)Taiwanese Tea 1)Introduction 2)Historical Background 3)Taiwanese tea culture -Teaism -Teaware -Ceremony 4)Bubble tea 5)Tea approach and conclusion I)Chinese New Year 1)Introduction Chinese New Year is the most important of the traditional Chinese holidays. It
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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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Introduction Tea is the second most popular drink in the world‚ after water. For a number of developing countries it is also an important commodity in terms of jobs and export earnings. Tea production is labour intensive and the industry provides jobs in remote rural areas. Millions of livelihoods around the world depend on the production of tea. For a number of tea exporting countries‚ including world champion exporters Kenya and Sri Lanka‚ tea is a critical source of foreign income. However‚ as
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