The purpose of this experiment was to determine the speed at which a reaction took place between an iodine and hydrogen peroxide solution. In addition to a change in concentration‚ a change in temperature and a catalyst variable was also introduced to conclude whether or not their presence affected the overall speed of the reaction. In order to determine the effects of these variables‚ several iodine and hydrogen peroxide reactions were prepared‚ (all at varying temperatures‚ volumes‚ and concentrations)
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sizes of molecules and how the chemical reactions take place. Therefore‚ the experiment was conducted using glucose and starch solution inside the dialysis tube. The starch and glucose that was put inside the dialysis tube help identify which of the two will reacted with potassium iodide inside the breaker‚ as the latter passed from the beaker into the tube‚ the glucose/starch solution’s change of color showed that the potassium iodide was small enough that it able to pass through from the solution
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enzyme for starch digestion‚ salivary amylase may well represent a potential compensatory alternate pathway for the digestion of amylose‚ amylopectin‚ and glycogen. Clinically significant depression of pancreatic amylase occurs in chronic pancreatitis‚ pancreatic resection‚ pancreatic neoplasm‚ cystic fibrosis‚ and other causes of pancreatic insufficiency. Quantitation of salivary amylase in these diseases has yet to be performed. It is also unclear whether the presence of starch in a meal
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an environment that is to basic or acidic the reaction will take longer to digest the starch because the enzyme shape has changed and the substrate will have a harder time connecting to the active
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Vol.3‚ No.6 (2009) 366–375 Available online at www.expresspolymlett.com DOI: 10.3144/expresspolymlett.2009.46 Starch-based completely biodegradable polymer materials D. R. Lu‚ C. M. Xiao*‚ S. J. Xu College of Material Science and Engineering of Huaqiao University‚ Quanzhou‚ 362021‚ P. R. China Received 21 February 2009; accepted in revised form 30 March 2009 Abstract. Starch is a natural polymer which possesses many unique properties and some shortcoming simultaneously. Some synthetic polymers
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released. These are the most commonly made of recycled and/or natural organic materials. They utilize nature’s abundant supplies to create a replica or substitute for our plastics. One example would be the “Biodegradable plastic bags” made from the starch of the Cassava plant (Manihot esculent). The new plastic has been able to capture the interests of buyers‚ enabling it to advocate the benefits and obvious effects one can receive from using an eco friendly product. To further elaborate the example
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There are three reactions in the iodine clock reaction. The first reaction is IO3-(aq) + 3 HSO3-3 SO4-(aq) + I-(aq)+ 3 H+(aq)‚ where the iodate ions become iodide ions1. The second reaction is 6 H+(aq) +IO3-(aq) + 5 I-(aq) 3 I2(aq) + 3 H2O(l) where the iodate ions become molecular iodine2. The third reaction involves molecular iodine becoming a dark blue starch;I2(aq) + starch blue-black complex3. These three reactions react in a sequence. In any reaction the concentration is exponentially related
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Decision sheet for A-One Starch Products Limited (B) Decision Problem: Preparation of a marketing strategy for Gluco-One given the pricing pressures. Options: 1. Explore new markets 2. Small number of High value customers Vs Many Low Value Consumers 3. Incur more costs to maintain the quality Vs Cut back on number of customers Decision and Rationale: 1. New Markets: Beer industry (220 million liters) at present is not using Liquid Glucose as a raw material. It would not be
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DETERMINATION OF SAPONIFICATION AND IODINE NUMBERS OF SOME LIPIDS A.L. ASCANO1 C.V. OPONDA1 1INSTITUTE OF BIOLOGY UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY‚ PHILIPPINES DATE PERFORMED: FEBRUARY 19‚ 2013 INSTRUCTOR’S NAME: FRANCESCA N. BELTRAN _____________________________________________________________________________________ ABSTRACT _____________________________________________________________________________________ INTRODUCTION Lipids are long aliphatic hydrocarbon chains
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EWB-UK Workshop Guide Make your own Bio-Plastic Description A workshop focusing on the problems of plastics made by fossil fuels and a look into making your own bio-plastic. At a glance Total time: 1 hour Learning Styles: Visual‚ auditory‚ practical‚ participatory‚ teamwork Objectives: To learn about the challenges facing fossil fuel plastics and how to make your own bio-plastic Audience: Anyone Max/Min no. of participants: N/A (Dependant on amount of materials) Timetable
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