EXTRACTION Organic Chemistry Laboratory This experiment was conducted in order to compare single and multiple extraction of caffeine from dried tea leaves and to calculate the percentage yield of caffeine for both extraction procedures. The group was assigned to do the multiple extraction. Before the extraction proper‚ the water bath containing the anhydrous sodium carbonate and distilled water was heated. As the sodium carbonate dissolves‚ tea leaves were added in the mixture and allowed to
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Dried Papaya Leaves as Organic Mulch for Tomato Plants Abstract Mulching in agricultural provides a safe yet equally profitable method of enriching and fertilizing the soil planted with crops. Most often-used mulches are of organic composition‚ such as dry leaves and barks. Unlike synthetic fertilizers and herbicides‚ these organic mulches pose no or little damage to the soil and crops. In this study‚ the effectiveness of dried papaya leaves as organic mulch for tomato was tested. Papaya mulches
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Caffeine in the diet Email this page to a friend Bookmark & Share Printer-friendly version Caffeine is a substance that is found in certain plants. It can also be man-made (produced synthetically) and then added to food products. It is a central nervous system stimulant and a diuretic (substance that helps rid your body of fluids). Function Caffeine is absorbed and passes quickly into the brain. It does not collect in the bloodstream or get stored in the body. It leaves the body in
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EXTRACTION OF DNA FROM ONIONS ABSTRACT The purpose of the experiment was to experience firsthand the isolation of DNA form a plant tissue without destroying its structure and sequence. A white onion was used for the experiment. After several processes‚ DNA isolate was the visible result. Different chemical tests were performed on the DNA isolate‚ namely: Dische Test‚ Murexide Test‚ Wheeler-Johnson test and Test for Phosphate. Visible results were then noted. INTRODUCTION DNA (deoxyribonucleic
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Synthesis of Banana Flavor via Fischer Esterification Patricia Faye R. Agnila‚ Joan Karla M. Alvaran*‚ Micaela Isabel N. Arellano‚ and Denzel Nicho T. Armendares Department of Biological Science‚ College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment is conducted to exhibit the synthesis of banana
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Procedure 2: DNA Extraction from Cheek Cells Materials: Water‚ Clear Dish Soap‚ Table Salt‚ Isopropyl Alcohol (70%) or Ethanol‚ Food Coloring 1. To 200 Ml drinking water add two teaspoons of salt 2. Gargle the salt water for 1 minute. 3. Spit the gargled water into a beaker (or new cup). Now your cheek cells are suspended in the salt water. 4. Gently stir the salt water with one drop of soap (try to avoid air bubbles) 5. In a separate beaker (or cup)‚ mix 20 ml isopropyl alcohol and 1-3 drops
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Cross Professional Pastry Techniques 1 Title: Afternoon Tea Report Contents Page Page Number Introduction 3 Methodology 4 Current trends 5 The Science of Gluten 6 Gluten free afternoon tea 7 Conclusion 10 Bibliography 11 Introduction In this report investigations will be carried out to determine what the current trends in items served in afternoon teas are as well as the way in which afternoon tea is served. Other factors that will be looked at include the
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material for dispensing * PROCEDURE FOR MATERIAL UN LOADING :- OBSERVATION:- 1. Novartis Pharma: receive material from different suppliers all the material is received against DELLIVERY CHALLAN and PURCHASE ORDER 2. SAIFEE DELLIVERY CHALLAN is maintain In Log Book 3. One lifter and four labor is required for un loading of material from truck 4. Before unloading warehouse supervisor must ensure that * Truck is covered and closed * Floor boards are dry
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EXTRACTION OF INVERTASE FROM YEAST AND EFFECT OF pH ON ENZYMATIC ACTIVITY Jenelle C. Faustino‚ John Gambit B. Garcia‚ Fatima S. Jusay‚ Oliver Alexander B. Lao and Eunice L. Licudine Group 4 2 E Medical Technology Biochemistry Laboratory ABSTRACT Enzymes are substances that are produced by living organisms and act as catalysts in order to speed up or chance a chemical reaction without changing itself at the end of the reaction. Invertase was extracted first from baker’s yeast. Determination
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the Extraction lab is to separate and purify benzoic acid‚ 2-naphthol‚ and naphthalene. These organic solids are purified by partitioning the solid in 2 immiscible solvents‚ diethyl ether and sodium bicarbonate or sodium hydroxide. II. Significance a. The significance of the Extraction lab is to purify Acetanilide benzoic acid‚ 2-naphthol‚ and naphthalene by determining the partition coefficient. This value is determined by dividing the solubility of the given solute in the extraction solvent
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