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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Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse‚ poured solution into sep funnel. Added 15 ml 3 M
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purifying solid organic compounds through the differences in solubility at different temperatures. In this experiment‚ a suitable solvent was first determined. Acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heating water bath. The hot solution was filtered and the filtrate‚ cooled slowly in an ice bath as crystals started forming out. As the compound crystallizes from the solution‚ molecules of other compounds were excluded from
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Experiment 2: Extraction – Evaluation Summary Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________ /10 Discussion: _________________ /10 Report Total: _________________ /20 Other Lab Marks
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Extraction of Caffeine from Tea Leaves Jaybee Balilea‚ Sharmaine Baysic‚ and Maria Anjelette Patricia Belen 3BIO7‚ Department of Biology‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Extraction is a technique for isolating and purifying organic substances. In this technique‚ a solution is combined thoroughly with a second solvent that is immiscible with the first solvent. The solute is extracted from one solvent into the other because it is more soluble in the second solvent
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METHODS OF EXTRACTION FOOD PROCESSING PRACTICAL (TFT 709) BY GROUP THREE MEMBERS ISMAILA AYUBA RAMADAN Submitted to Department of Food Technology University of Ibadan Lecturer-in-charge Dr. Akinoso Febuary‚ 2012 Abstract Oil extraction was carried out using two different extraction method (water and solvent) and the yield for different method were obtained. The free fatty acid for different oil was also determined immediately after extraction and also
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*Compound Interest/Discount* Compound Interest When you borrow money from a bank‚ you pay interest. Interest is really a fee charged for borrowing the money‚ it is a percentage charged on the principle amount for a period of a year - usually. If you want to know how much interest you will earn on your investment or if you want to know how much you will pay above the cost of the principal amount on a loan or mortgage‚ you will need to understand how compound interest works. * Compound interest
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EXTRACTION OF TRIMYRISTIN FROM NUTMEG: Paul I. PURPOSE: The purpose of this experiment was to illustrate the extraction of a solid natural product from its natural source by partition with the aid of an organic solvent. Extraction is the process by which a compound or mixtures of‚ is transferred by separation from one phase into another. In this case‚ the major triglyceride contains a single fatty acid identified as myristic acid. It is a substituent
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Republic of the Philippines Mindanao State University General 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
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Date Submitted: Sept. 2‚ 2014 EXPERIMENT NO. 1 EXTRACTION AND ISOLATION OF PROTEINS Background of the experiment Pure proteins are not readily available for study or use. There are certain methods that should be done in order to obtain proteins from its sources. The objective of this experiment is to isolate casein from milk and albumin from egg and to identify and explain the principles behind the methods employed for protein extraction. Results and Discussion There are many possible sources
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