Egypt. 684 Antioxidant Activities of Orange Peel Extracts A.E. Hegazy and M.I. Ibrahium Department of Food Science and Technology‚ Faculty of Agriculture‚ AL-Azhar University‚ Cairo‚ Egypt Abstract: This work aimed to evaluate the efficiency of different organic solvents such as‚ methanol‚ ethanol‚ dichloromethane‚ acetone‚ hexane and ethyl acetate for extraction of ( flavonoids and polyphenolic compounds(TFC and TPC respectively) from the orange peel. Also‚ the effect of these solvents
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Chem 231: Organic Chemistry Lab EXPERIMENT #2 and #3 Extraction and Evaporation Recrystallization and Melting Point Measurement PURPOSE: 1. To the components of a simulated pharmaceutical preparation‚ Panacetin‚ and identifying the unknown component of the mixture through extraction and separation methods. 2. To learn how to purify by recrystallization‚ how to dry them and how to obtain a melting point. PRECAUTION: ACETANILIDE AND PHENACETIN ARE EYE AND SKIN IRRITANTS. Minimize
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Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
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Chapter 28: Nitration of Methyl Benzoate I. General Information: A.) Microscale Nitration of Methyl Benzoate B.) C.) May 17‚ 2008 D.) Reaction(s)‚ including molar masses and all relevant physical data E.) Mechanism for the nitration of chlorobenzene: II. Purpose: In this experiment we are to take a cold solution of an aromatic ester that is first dissolved in sulfuric acid and is then reacted with nitric acid. This is a highly exothermic reaction and is kept under control by means
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See Student ID: 1404057 Practical Group: 1 Title of Experiment: Name of Tutor: Dr. Mohammod Aminuzzaman Date: 24 February 2016 Tiltle: Nitration of Methyl Benzoate Objectives: -To prepare methyl-3-nitrobenzoate from nitration of methyl benzoate by electropilic aromatic substitution. -To calculate the percentage yield and get the melting point of methyl-3-nitrobenzoate. Introduction: Benzene contains compounds have special properties that make them to react differently than other molecules. The conjugated
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INDANG CHRISTIAN ACADEMY ALULOD‚ INDANG‚ CAVITE Effect of Orange (Citrus sinensis) and Calamondin (Citrus microcarpa) to Fruit fly A Research Project: Submitted to: Submitted by: Vince Loelle C. Creus School year: 2012 – 2013 ABSTRACT This study will test the effect of orange and calamondin on fruit fly. The researcher used these materials because of some proven related studies. The researcher started conducting this research last November 2012. This study used the following
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A Clockwork Orange 2 A Clockwork Orange: Movie Critique One of the most controversial films of the early 1970’s‚ or even of all time‚ was a film that took the aspects of Aversion Therapy and Classical Conditioning to an all new level. A Clockwork Orange by Stanley Kubrick (1971)‚ based on the novel by Anthony Burgess‚ illustrates what happens when different types of psychological therapy are used to treat violent behavior. The main character in this movie‚ Alex‚ along with his
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The first time I saw the book name “A Clockwork Orange”‚ I think it is weird. What is “clockwork orange”? Clockwork is a structure of a machine while orange is a fruit. This awkward combination makes no sense to me. And that’s just what the author was trying to express‚ the feeling of awkward‚ queer and bizarre. By reading the introduction in the beginning part of the book‚ I came to know that Clockwork oranges exist only in the speech of old Londoners. The image was a bizarre one‚ always used for
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4 Synthesis of Salicylic Acid Introduction Throughout history‚ botanical extracts have been used as medicines. Approximately 30% of all medicines have a plant origin. This number increases to 60% if you consider medicines that at one time were derived from plants‚ but have been synthesized in the laboratory. Salicylic acid is a white crystalline compound that can be isolated from the bark of birch trees. Since it is a valuable substance that can be isolated from nature‚ it is called a "natural
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Amino Acids Glycine is the smallest of the amino acids. It is ambivalent‚ meaning that it can be inside or outside of the protein molecule. In aqueous solution at or near neutral pH‚ glycine will exist predominantly as the zwitterion. Alanine is a hydrophobic molecule. It is ambivalent‚ meaning that it can be inside or outside of the protein molecule. The α carbon of alanine is optically active; in proteins‚ only the L-isomer is found. Serine differs from alanine in that one of the methylenic
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