& NUTRITION LABORATORY REPORT NT20903 FOOD CHEMISTRY AND BIOCHEMISTRY Determination of free fatty acid(FFA) and iodine value (IV)in oil LECTURER NAME : MOHD NAZRI BIN ABDUL RAHMAN LAB SESSION : 3 OCTOBER 2011 (GROUP 4‚ MONDAY) Group Member Title: Determination of free fatty acid (FFA) in oil and determination of iodine value (IV) in oil Introduction Acid value or free fatty acid content is an important characteristic commonly used in quality control of fat and oil. Fats and
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Iodine Isotopes are the atoms that have in their nucleus an atomic number corresponding to the chemical behavior of that element. Since isotopes have the same number of protons‚ they all have identical chemical behavior. But‚ however‚ since their neutron numbers are different the isotopes of the same element may have different radioactivity. An isotope that is radioactive is called a radioisotope like iodine‚ which is important in our health. In radioactivity‚ the nucleus of an unstable isotope
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Lab #3: Method of Initial Rates: Iodine Clock Introduction The detailed system of steps in a reaction is called the reaction mechanism‚ and it is one of the principal aims of chemical kinetics to obtain information to aid in the elucidation of these mechanisms in order to better understand chemical processes. Reactions usually occur in a stepwise manner with each step proceeding at a different speed. If the rate of reaction is slow enough to measure‚ this is indicative of a step much slower
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Human hair wigs vs Synthetic From Napoleon to Cher‚ wigs have been indicators of social status‚ allow oneself to become another person in a matter of seconds‚ change one’s overall appearance for either a very natural look or a dramatic look. I’d like to discuss the difference between synthetic and human hair wigs and hairpieces. Synthetic wigs are durable and more often than not more affordable than human hair wigs. Because they are made of synthetic materials‚ up close and to the touch‚ they
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In order to prepare the iodine solution titrant‚ exactly 50 mL of 0.01 M KIO3‚ exactly 20 mL of 10% KI solution‚ and exactly 25 mL of 0.3 M H2SO4 was transferred into a 100 mL volumetric flask using a volumetric pipette. The volumetric flask was then filled to the mark with distilled water. The flask was covered with Parafilm and inverted to mix. The next part of the experiment was to determine the Vitamin C in a solution of known concentration. Observations of the Vitamin C sample and the amount
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INTRODUCTION Iodine deficiency disorders are still very much prevalent in the world today. Two billion people‚ estimated by the WHO‚ still lack a sufficient level of iodine in their diets which leads to a range of disorders known as iodine deficiency disorders (IDD). So what is iodine? Iodine is an essential micronutrient in the diet which is used by the thyroid gland (located in the throat) to produce thyroid hormones which help control the body’s metabolism. The two most important thyroid
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vigorously rub it. Refrain from using a blow dryer because heat can damage the hair and cause a lower lifespan for the wig‚ and increase shedding and bald patches as well. Lace wigs should never be brushed or styled while wet either. How to Sleep in a Lace Wig There are two different options for sleeping in a lace wig to prevent shedding and tangles. The first is to remove it and place it on a wig stand or mannequin for the night. If that’s not possible‚ a second option is to braid it and wrap it in a scarf
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Using the Iodine clock method to find the order of a reaction Introduction When peroxodisulfate (VI) ions and iodide ions react together in solution they form sulfate (VI) ions and iodide. This reaction is shown below: S2O82-aq+ 2I-aq SO42-aq+ I2(aq) The reactants and the sulfate (VI) ions are colourless however the Iodine is a yellow/brown colour. This allows you to measure the progress of the reaction through the colour change when the iodine is produced. In order to determine the order of
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Iodine: Function of Iodine: Iodine is a mineral found in food. This mineral is needed to make thyroid hormones. The hormones created are used to control the body’s metabolism and lots of other important functions. The thyroid hormones are also used for bone and brain development during pregnancy and infancy. This mineral is important for everyone‚ especially infants and women who are pregnant. The amount of Iodine needed for your daily intake recommended of the mineral depends on your age:
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Examining Starbucks using the 7s method © 2001 Tim Glowa White Paper: Examining Starbucks utilizing the 7s method and less than perfect information Tim Glowa‚ Tim@Glowa.ca September 15‚ 2001 © 2001 Tim Glowa September 15‚ 2001 -1- Examining Starbucks using the 7s method © 2001 Tim Glowa Table of Contents Executive Summary.................................................................................................... 3 Introduction.........................
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