water-soluble sodium salt‚ whereas the polymer remains insoluble. This difference can be used to purify the aspirin product. The most likely impurity in the final product is salicylic acid‚ which can be either unconsumed reactant‚ or the result of hydrolysis of the aspirin product. Salicylic acid is removed during the purification steps as well. Salicylic acid‚ like most phenols‚ forms a highly colored complex with ferric chloride‚ and is easily detected. Aspirin does not form the colored complex
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feed properly (“Your Comprehensive Source for BSE Facts”). • Label cattle as “inspected and passed‚” only if they’ve been tested negative for BSE (“Your Comprehensive Source for BSE Facts”). Sources Cited Hudson-Miller‚ D. (n.d.). Dehydration and Hydrolysis. Retrieved January 4‚ 2015‚ from https://docs.google.com/document/d/1qlFyeosYpUSw4gJwgZ3g3XdPu3 _ OuLubIuZlPlDohTc/edit Material Safety Data Sheet. (2005‚ October 10).
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appears as a mucoid in MacConkey agar it’s ferment lactose. According to biochemical tests the klebsiella gave negative result for oxidase‚ indole‚ methyl red‚ hydrogen sulfide‚ phenylalanine‚ gelatin hydrolysis‚ DNase and lipase. On other hand klebsiella gave positive result for citrate‚ urease hydrolysis‚ lysine decarboxalyze‚ acid form lactose‚ acid form glucose‚ acid form sucrose‚ acid form maltose‚ acid form mannitol and nitrate reduction. (1) Klebsiella have no specific growth requirements and
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Food Chemistry 134 (2012) 696–703 Contents lists available at SciVerse ScienceDirect Food Chemistry journal homepage: www.elsevier.com/locate/foodchem Characterisation of calamansi (Citrus microcarpa). Part II: Volatiles‚ physicochemical properties and non-volatiles in the juice Mun Wai Cheong a‚ Danping Zhu a‚ Jingting Sng a‚ Shao Quan Liu a‚ Weibiao Zhou a‚ Philip Curran b‚ Bin Yu b‚⇑ a b Food Science and Technology Programme‚ Department of Chemistry‚ National University of Singapore‚ Science
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It is a very good mechanism for transport since they are highly cohesive 5. Important reagents for chemical reactions ( such as hydrolysis and photosynthesis ) ------------------------------------------------- Carbohydrates Separated into 3 types which are monosaccharides‚ disaccharides and polysaccharides Monosaccharides * they are three main types of monosaccharides which
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Simple lipids are esters of fatty acids with various alcohols. Compound or conjugated lipids are esters of fatty acids containing groups in addition to an alcohol and a fatty acid. Derived lipids are those derived from simple/compound lipids through hydrolysis (Harper et al.‚ 1977). Christie (2010) defined lipids as fatty acids and their derivatives‚ and substances related biosynthetically or functionally to these compounds. In
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GROUP No.: | DATE: 02/14/13 | | NAME: | | EXPERIMENT No.25BACILLUS: Diagnostic Tests | | ASCOLI’S THERMOPRECIPITIN TEST Purpose: used to identify anthrax bacilli in animal hides and meat. Principle: This test was designed to detect B. anthracis antigens in the tissues of animals being utilized in animal by-products and thereby to reveal when these products contained ingredients originating from animals that had died of anthrax. The thermostable antigens involved are common to other
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PLANNING COURSEWORK- STARCH AND AMYLASE AIM The aim of this coursework is to investigate the effect of temperature change‚ on the rate of hydrolysis of starch catalysed by amylase. PREDICTION I think that as the temperature increases‚ the rate of reaction also increases‚ to a point when it dramatically decreases. On graph 1‚ you will see a sketch of the graph which I expect to be the result of the experiment. SCIENCE REASONING I think my prediction is correct because the rate of
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Human Anatomy & Physiology Version 8.0 Physioex Exercise 8 CHEMICAL AND PHYSICAL PROCESSES OF DIGESTION - ANSWERS Please note: I do not include the charts as you still have to do the experiments and print the data and graphs. Activity 1 What do tubes 2‚ 6‚ and 7 reveal about pH and amylase activity? Hint: What variable was changed in the procedure? a. maximum of amylase is at pH 7.0 (tubes 2 & 5‚ brownish red) and pH 9.0 showed little activity (tubes 6 & 7‚ green) Which pH
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Questions: 1. 2. The phenol group of methyl salicylate is a weak acid‚ therefore it reacts very swiftly with a strong base‚ in this case NaOH‚ to form a sodium salt. Which removes the H from the phenol group. During hydrolysis the ester group of methyl salicylate is broken apart by the addition of a molecule of water. From which a molecule of alcohol and a molecule of carboxylic acid are obtained. The strong basic reaction mixture causes the carboxylic acid to react
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