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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purpose of this experiment is to synthesize methyl nitrobenzoate from methyl benzoate‚ concentrated HNO3‚ and concentrated H2SO4 via an electrophilic aromatic substitution reaction. Reaction Procedures/ Observations Use a 50 ml beaker to cool about 6 ml of concentrated sulfuric acid in an ice water bath. Weigh the vial containing about 3 grams of methyl benzoate and add it to the cooled sulfuric acid. Next pour about 2 ml of sulfuric acid to the nitric acid in the vial and allow for it to cool
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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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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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"A man who cannot choose ceases to be a man."Anthony Burgess A Clockwork Orange is a novel about moral choice and free will. Alex ’s story shows what happens when an individual ’s right to choose is robbed for the good of society. The first and last chapters place Alex in more or less the same physical situation but his ability to exercise free will leads him to diametrically opposite choicesgood versus evil. The phrase‚ "what ’s it going to be then‚ eh?‚" echoes throughout the book; only
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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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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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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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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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