Investigating the vitamin C content of fruits and fruit juice Aim: In this investigation‚ I aim to measure and compare whether there is a higher content of vitamin C in a fruit or a juice by measuring the volume of the sample required to decolourise a solution of dichlorophenolindophenol (DCPIP). Introduction: For this experiment‚ I aim to investigate and compare the content of vitamin C in the fruit against the fruit juice. The theory of this method is a titration with dichlorophenolindophenol
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of orange juices‚ and we also used 0.1% of vitamin C solution. The aim of our experiment was to see how much DCPIP was needed to be added to make the orange juices turn back to the orange colour and the DCPIP to decolourise once the 0.1% of vitamin C was added. DCPIP is a blue dye in its non-reduced form; it becomes colourless when it gains electrons. Vitamin C is an anti – oxidant‚ this is found mainly in fresh fruit and vegetables. The main use of Vitamin C is that it neutralises free radicals‚ which
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Vitamins and Minerals General Concepts: * Divided into two major groups: fat soluble and water soluble * fat soluble: A‚ D‚ E‚ K * requirements vary with species‚ size‚ growth rate‚ environment (temperature‚ presence of toxins‚ etc.) and metabolic function (growth‚ stress response‚ disease resistance) * many species can utilize intestinal bacteria synthesis for meeting vitamin requirements Vitamin
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Vitamin c in fruit juice using dcpip titration Preparing the standard ascorbic acid solution 1. Weigh out accurately about 0.2 g ascorbic acid and make up to 1 L with distilled water. 2. Calculate the concentration of the ascorbic acid solution: C = n/V = m/M/V. Sample calculation: mass of ascorbic acid = 0.205 g C (ascorbic acid) = 0.205/176.12/1.00 = 0.00116 M Preparing the DCPIP solution Weigh out accurately approximately 0.24 g DCPIP (Mr = 268.1g/mol) and make up to 1 L with
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1 WHY DO PEOPLE TAKE VITAMINS? Why Do People Take Vitamins? Tanya Goodden Thammasat University Author Note ID: 5306643xxx Business English Communication Program‚ Thammasat University. Correspondence concerning this paper should be addressed to Tanya Goodden‚ Business English Communication Program‚ Thammasat University‚ Thailand. E-mail: xxx@hotmail.com EB 333 2 WHY DO PEOPLE TAKE VITAMINS? Abstract This research was performed to determine the main factor that influences people‟s
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CHAPTER 1 INTRODUCTION 1.1 Background of the Research Vitamin supplements bring added nutritional values to people’s health. With their contents of the certain recommended amount of minerals and vitamins needed for staying healthy‚ vitamin supplements have become more and more popular especially for those with hectic and busy lifestyles. These people believe that daily or regular consumption of vitamin supplements helps to ensure the proper intake of nutrition needed—a compensation for what
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Water Soluble Vitamins and Fat SCI/241 Water Soluble Vitamins and Fat The human body requires a large number of vitamins for a number of functions to keep the body alive and running properly. Vitamin D helps balancing hormones and Vitamin C helps with chemical reactions in the human body. Fat-soluble Vitamins and High Nutrient Sources The fat-soluble vitamins consist of A‚ D‚ E‚ and K; they are found in a variety of foods. Vitamin A | Celery‚ basil‚ chili pepper‚ mixed vegetables‚
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Soluble Vitamins Annette Dixon Science/241 October 21‚ 2012 Pam Mahre The vitamin classifications are a Fat- Soluble vitamin which is vitamin A‚ D‚ E‚ and F. Fat- Soluble is not necessary to take every day. But you do need to take them‚ because they perform important functions in the body like blood clotting and the absorbency of calcium. And to make sure you don’t get too much of these vitamins you should make sure you are eating the right foods to maintain a healthy diet. The other vitamin classification
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Abstract Vitamin C‚ also known as ascorbic acid‚ is a water soluble vitamin that is regarded as one of the safest and most effective nutrients. Vitamin C can be found in most fruits and vegetables. The goal of the experiment is to find out the concentration of vitamin C in three citrus fruits‚ orange‚ lemon and lime‚ and to compare them and find out which fruit contains the highest concentration of Vitamin C. By using the juice from each fruit to make a solution to combine with 10cm³ of DCPIP until
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October 14‚ 2011 Vitamin B12 Deficiency Vitamin B12 deficiency is also known as Cabalamin‚ it is a water-soluble vitamin that helps to maintain the healthy central nervous system and the formation of the red blood cells. Usually water soluble vitamins can’t be stored by the body. However‚ Vitamin B12 is a special kind of vitamin that can be stored in the liver for years. It is also needed to make the DNA material that exists in every cell. The average adult needs 2.4 microgram of vitamin B12 daily. Pregnant
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