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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OF OLIVE OIL INTRODUCTION Olive oil is a pale yellow to greenish oil extracted from the fruit of the European olive tree (Olea europaea L.)‚ which originated in the Mediterranean area. The olive is originally native to the eastern Mediterranean region but the cultivated form is now grown throughout that area and in other parts of the world with Mediterranean-type climates. It hardens at refrigerator temperatures - around 10 degrees F. Today a market certainly exists for olive oil‚ since the
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much weaker. Besides strength of the brew‚ growing conditions‚ processing techniques- and other variables also affect caffeine content. Certain types of tea may contain somewhat more caffeine than other teas. II. Methodology Firstly‚ the extraction must be considered. Three tea bags were opened and the combined weights of the tea leaves were taken. Recording the weight is necessary. The tea leaves were returned in the bags. The next step was boiling of the tea bags in 100 mL distilled water
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States is sitting on enough recoverable oil to power us for the next 250 years at our current usage rate... The United States is estimated to have 1.4 trillion barrels of oil—or 1.7 trillion‚ if the resources of Canada and Mexico are counted. There aren’t many options for quick relief from high prices at the pump‚ but it is very obvious the sooner we free ourselves from the shackles of oil dependence – foreign and domestic – the sooner we will be free of oil industry profiteering and political pandering
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Extraction of caffeine from tea bags ABSTRACT Caffeine extraction from the commercial tea leaves (Lipton Yellow Label Tea) that was done is multiple extraction. 4 tea bags were used in the experiment; tea leaves were weighed having 8.5333 grams. The leaves were boiled in a beaker with 150ml of water; the aqueous tea extract was transferred in a seperatory funnel mixed with DCM (20ml)‚ done thrice. The DCM layer was washed with 20ml 6M NaOH in the seperatory funnel; the organic layer was dried
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THE EFFECTIVITY OF MALUNGGAY (Moringa Oleifera) LEAVES EXTRACT AS AN ALTERNATIVE COOKING OIL (Group 4) Louiejabe Yap Nuniala Justine Aligor Agustin John Patrick Bagadiong Cruz Mitzi Louise Hisoller Hojilla John Patrick S. Caparoso Bianca Renee Valaquio Bendero 7-Galileo Galilei December 2013 Mr. Abraham Saturnino C. Barrientos Table of Contents I. Introduction Background of the Study................................................... 3 Statement of the Problem..
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SEGi University Extraction of Benzoic Acid by Balvinder Singh (SCM 015 677) Lab Partners: 1) Surrean Rao 2) Wong Kai Jun 3) Kanaga Luckshimi 4) Sasiskala Regal ECE2332 Chemical Engineering Practices Submitted: 1st October 2013 Supervisor: Mr Ayman William 1.0 Abstract /summary The purpose of this experiment to carry out in the lab is because to determined the capability to water droplet to carry out the liquid-liquid extraction. The studies is to determine
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Extra Credit Paper 4/24/2015 The Future of the Oil Supply Throughout our lifetimes there has been one thing among others that our society and our world depends on in our everyday lives‚ oil. Oil is one of the things that help our world function in a way other natural resources haven’t been able to. Oil powers our cars‚ planes‚ trains‚ boats and other vehicles that enabled us to travel around the world in a more efficient and quicker time frame. Oil helps us to run our appliances at homes and at
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England’s Royal Biscuit Company and Gernnany’s Edeling GmbH are in the final stages of a merger. Will a global culture clash cause the deal to crumble? Oil and Wasser by Byron Reimus M’ ‚iCHAEL BRIGHTON felt as if he’d been slapped. His back stiffened into the cold leather chair as Sir John Callaghan‚ the temperamental chairman of the London-based Royal Biscuit Company‚ angrily brandished the memo. "There is no evidence the two of you collaborated on this leadership development plan!" he
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DNA Extraction Lab Purpose: To compare the amount of DNA extracted from two different species‚ despite using the same method. Hypothesis: I predict that the liver will produce a higher quantity of DNA than the strawberry. This is because I believe that animals have a higher DNA yield because our structure is more complex than a plant’s structure. Materials: -Sample of Strawberries -Zip lock bag -DNA extraction buffer -Cold ethanol -Glass rod -Double ply cheese cloth -Two test tubes
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