Results and Discussion A. Table of Result of Extraction Weight (g) Tea Leaves 5.5783 Crude Caffeine 0.0246 Empty Beaker 117.5350 Beaker + Crude Caffeine 117.5596 The table above shows the weight of the sample tea leaves‚ the crude caffeine content in the sample‚ the empty beaker used in the extraction‚ and the beaker with the crude caffeine. It is induced from there that for that amount of sample tea leaves‚ which is equivalent to three bags of Nature’s Pride Tea; there is a 0.0246
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can be used. Fractional distillation uses a column that allows many small distillations to occur as the vapor ascends the fractional distillation column. Purpose: In this experiment we aim to demonstrate that we can separate two volatile compounds from a mixture due to the different chemical properties of each compound. We will accomplish this by a separation procedure known as distillation‚ which relies on each compound having a distinct and separate boiling point. Our pure products will be analyzed
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Introduction When extracting lipids or fats from foods‚ both the method as well as the solvents chosen to perform a complete‚ or close to complete extraction are important. If these two elements are not taken into consideration‚ the extraction may not be complete‚ or the extract may contain a large quantity of undesired impurities. The natural fats and oil are mixtures of glycerides of fatty acids. Fats and oils are naturally occurring organic compounds which belong to a large group of water insoluble
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QUIZ 02 ECO402 Quiz # 2 ECO402 (Microeconomics) Semester Spring 2008 Total Marks 15 Instructions: 1. 2. 3. 4. 5. This quiz covers Lesson 14-17. Last date for submission of quiz is 12/05/08. Upload your quiz with in due date and time. No quiz will be accepted after due date and time. In MCQs‚ write only one option in the answer sheet which you think is correct. More than one answer will be marked zero. 6. No quiz will be accepted through e-mail. 7. Please submit your solution
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Santos City Bio 108: Cell Biology Laboratory Report August 28‚ 2013 DNA Extraction on Onion (Allium cepa) and Human Cheek Cell Arriza‚ Rolland Merch Buscato‚ Carl G. Butil‚ Conrad G. Leonida‚ Renee Theresa ABSTRACT This activity observes the DNA present in onion (Allium cepa) and human cheek cells by extracting it with the addition of lysis buffer and chilled ethanol. The lysis buffer is prepared from squeezed onion mixed with salt and Pantene Pro-V Shampoo. The buffer degrades the
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E5 & E6 Extraction of Chlorophyll from Fresh Spinach and Investigation of the Photochemistry of Chlorophyll Chlorophyll a Chlorophyll b E5 - Extraction of Chlorophyll from Fresh Spinach E6 - Investigation of the Photochemistry of Chlorophyll The aim of this experiment is to investigate the photochemistry of chlorophyll. This experiment will be performed in two lab periods. In the first lab period you will extract chlorophyll‚ the green pigment in leaves‚ from spinach.
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carrageenans are extracted from red seaweed and assume a gelatinous structure. [pic] Figure 1.Different types of carrageenan. They differ in structure‚ properties and uses. Production of carrageenan‚ particularly κ-carrageenan can be done in either of two ways. The first method‚ which is considered as the original one‚ involves the extraction of carrageenan into an aqueous solution‚ filtration to remove the seaweed residue and finally‚ the recovery of the carrageenan from the solution. Hence‚
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Bioinformatics Leigh Ann Santana DNA Extraction Lab DNA extraction is an important process because the DNA first needs to be purified away from proteins and other cellular contaminants. Cell are needed‚ because that is where the DNA is located. Inside almost every cell in our bodies is a nucleus‚ and inside each nucleus is about two meters of DNA. The following steps are needed to purify DNA from a cheek swab. Collect cheek cells‚ Burst cells open to release DNA‚ separate DNA from proteins and debris‚ and
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Extraction of Caffeine from Tea leaves Casinabe‚ Antonio Karlo‚*Catahay‚ Jesus Alfonso‚ Cerdena‚ O’neil‚ Cordova‚ Robelle Department of Biological Sciences‚ College of Science University of Santo Tomas‚ España Street‚ Manila 108 Group 4 2MB Date Submitted: December 13‚ 2012 ------------------------------------------------- ABSTRACT: The purpose of this experiment is to extract the amount of caffeine present in tea bags. In this experiment‚ isolation‚ characterization and purification
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1.0 TITLE Extraction of Phenol and Flavanoid compound of the edible brown seaweed species (Eucheuma Cottonii). 2.0 INTRODUCTION 2.1 An overview of Seaweed Macro-algae or “seaweeds” are multicellular plants growing in salt or fresh water. They belong to the lower plants‚ meaning that they do not have roots‚ stems and leaves. Instead they are composed of a thallus (leaf-like) and sometimes a stem and a foot (holdfast). Some species have gas-filled structures to provide buoyancy. They are often
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