CHEMICAL AND ENVIRONMENTAL TECHNOLOGY DEPARTMENT Lab Report ROOM NO: FE E309 EXPERIMENT NO : 8 TITLE : Thin Layer Chromatography of Food Dyes Submitted by Class Partners Instructor : Lyndsay Grover : BIOL 10000 lab. : Awatif Hagelamin : Farag Soliman Date lab performed : February 3‚ 2011 Date of submission : February 10‚ 2011 FENNELL CAMPUS HAMILTON‚ ONTARIO 1/3 Purpose: The purpose of this experiment was to observe the reactions of food dyes with thin layer chromatography paper in order
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Spectroscopy of Food Dyes Foods and drinks are identified by two major concepts: shape and color. When individuals want to buy fruit‚ shape and color help determine ripeness and the quantity. These qualities help people spend money efficiently by buying the best fruit‚ or any food for that matter. All foods have preconceived looks‚ and if a food were to not be the same color or a different shape‚ an abnormality is noticed. The Lab Manual provides information that there are nine different FDA approved
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Today in lab I will separate mixtures of compounds into their constituent components using chromatography paper and an eluting solvent of salt water as well as rubbing alcohol. Materials and Methods: In this lab using the bag of FD&C dyes‚ bag of M&M’s‚ 2 packs of Kool-Aid ‚ and a pack of Clover Valley store brand food coloring I am going to place a drop of each dye at the bottom of the chromatography paper. For the experiment with the rubbing alcohol I also placed a drop of each dye‚ but used
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Chromatography of Food Dye Chem 180-DL3 Abstract: The goal of this experiment was to use different dyes to determine the Rf value. Chromatography is done to determine the presence of a mixture in a substance. In this experiment different dyes were used such as McCormick food coloring‚ M&M’s‚ Kool-Aid‚ and the dyes that came with the lab kit. Experiment and Observation: In this experiment a 50mL beaker was filled with luke warm water and a pinch of salt water was dissolved in it
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Biology Lab report #1 The uptake of neutral red dye in a yeast cell using different solutions Abstract Every cell transports materials in and out throught something called a membrane. There are many different methods of transport in the cell Saccharomyces cerevisiae (Serrano‚ 1977) We want to know does adding higher concentrations of azide more effectively block dye transport? We tested the transport of dye in yeast cells with a metabolic inhibitor. When we did this we showed no difference
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In this experiment the objective is to separate dyes in washable markers to see how many different dyes are combined to create one color. The technique used to separate the dyes in this experiment is called chromatography. The materials used consisted of – 3 pieces of chromatography paper‚ a tall clear glass‚ water‚ table salt‚ 1 tsp. measuring spoon‚ an 8 oz. measuring cup‚ pencil‚ ruler‚ 6 washable markers‚ and paper towels. The markers used in this experiment have to be water soluble therefore
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_______ Training Lab: Paper Chromatography I. Background Information: When working in a lab‚ scientists often need to identify different molecules that are present in a sample they are studying. There are many ways to identify unknown molecules/chemicals in a sample. The method you will be using today is called Paper Chromatography and consists of 2 steps. First‚ you will separate the unknown chemicals and then you will identify them. This process can also be applied to the food we eat everyday.
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Food Dyes A Rainbow of Risks Sarah Kobylewski‚ Ph.D. CandidateMolecular Toxicology Program University of California‚ Los Angeles and Michael F. Jacobson‚ Ph.D. Executive Director Center for Science in the Public Interest Copyright © 2010 by Center for Science in the Public Interest First Printing June 2010 Printing: 5 4 3 2 1 Summary Food dyes‚ synthesized originally from coal tar and now petroleum‚ have long been controversial. Many dyes have been banned because of their adverse
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purpose of this Lab is to use spectroscopy create graph to determine the concentration of dye in a sport drink‚ by creating series of standard dilutions of an FD&C Blue 1 Stock solution and measuring the percent transmittance of each dilutions. Results in each dilutions will be use‚ to determine the linear function among various functions (T‚ T%‚ log T‚ - logT) For a Beer’s law calibration curve. The produce provides a model for guided-inquiry analysis of the concentration of food dye(s) in sports
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you had to find out if the food you picked contained starch‚sugar‚lipids and protein.The food item that was chosen to decipher was a Big Mac and you chose what from the burger you wanted to test to see what it was made of‚ example like the bun of the burger. When testing you would have one test tube of water with food and the other test tube with the solution needed and food.The reason for the test tube with the water is because it was the indicator. If the product of food contained the macromolecule
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