Vitamin C Essays & Research Papers

Best Vitamin C Essays

  • Vitamin C - 2742 Words
    E20-1 Experiment 20 Consumer Chemistry: Vitamin C in Fruit Juices The Task The goal of this experiment is to determine the concentration of vitamin C in a range of different fruit juices (fresh and preserved) using titration and to rank these sources of vitamin C. Skills At the end of the laboratory session you should be able to: * use a pipette correctly, * use a pipette filler safely, * manipulate a burette and carry out a quantitative titration properly, * weigh a...
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  • Vitamin C - 744 Words
    Chapter 1 Introduction A person needs a daily intake of Vitamin C to stay healthy; therefore, one should be aware of what fruits he/she should ingest daily or more days to obtain stronger stamina and the abundance of antioxidants in the body to reverse oxidation. Vitamin C or L-ascorbic acid is essential for normal growth of humans and it helps in the repair and reconstruction of body tissues lost over time. It is an antioxidant that blocks the damage caused by free radicals. People who...
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  • Vitamin C - 3356 Words
    An experiment to investigate the enzyme concentration and rate of reaction Background To carry out our experiment we used 3 different types 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....
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  • Vitamin C - 1434 Words
    Title: Analysis of the differences of percentage of vitamin C (ascorbic acid ) between the fresh orange juice and artificial orange juice (Sunkist). Problem statement : Does have different types of fruit juice contain similar amount of vitamin c ? Objevtive: To analyse the concentration and percentage of different food sample by using titration method and state whether the percentage and concentration of vitamin C. Methodology: Theory : DCPIP can also be used as an indicator...
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  • All Vitamin C Essays

  • Vitamin C - 1052 Words
    Vitamin C –A Natural Antioxidant Concept: Vitamin C (ascorbic acid) is an antioxidant. The amount of vitamin C content in food can be found out by titrating with an oxidising agent, e.g. iodine. In the reaction, vitamin C is oxidised, while iodine is reduced to iodide ions. The endpoint is determined by the formation of blue-black starch-iodine complex when all vitamin C is oxidised and excess iodine is free to react with the starch solution added as indicator. Introduction Vitamin C is an...
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  • Vitamin C - 659 Words
    Research Question: How the amount of vitamin C in fruit juices affects its freshness and till what extent is the information provided on the pack by manufacturers is reliable? Background Information: Hypothesis: -fresh juices have more vitamin C than long-life -juice that is ‘not from concentrate’ is best in terms of vitamin content -if heat destroys vitamin C then heat-treated long-life juices will have lower concentrations -if heat destroys vitamin C then boiled fruit juice will...
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  • Vitamin C - 2015 Words
    Estimating the Vitamin C Concentration in Fruit Juices: A Redox Titration Prelab Assignment – Please turn your answers in on GaView prior to lab 1. How will you prepare a .02% (m/v) NBS solution? Calculations should be in your notebook before arriving to lab. 2. Provide the structure of vitamin C in its reduced form (ascorbic acid), its ionized form (ascorbate ion- this is at equilibrium with reduced form when dissolved), and its oxidized form (dehydroascorbate). 3. Why do you...
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  • vITAMIN c - 1420 Words
    11/10/2014 experiment 1 Analysis of Commercial Vitamin C Tablets Objective To employ titration technique to determine the content of vitamin C in commercial tablets using volumetric analysis and compare it with the manufacturers' specifications. Introduction Deficiency of essential antioxidant Vitamin C in human will lead to scurvy. In this experiment, the vitamin C content of commercial tablets is determined and then compared with the manufacturers' specifications. Vitamin C,...
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  • Vitamin C - 971 Words
    Does the amount of Vitamin C on the label of commercially available tablet exaggerate the amount of Vitamin C? The aim of this experiment is to determine whether manufacturers of commercially available Vitamin c tablets exaggerate the amount of vitamin C Abstract: The purpose of this experiment was to test Vitamin C in commercially available Vitamin C tablets. It was discovered that the percentage Vitamin C content was lower than what was stated on the label. This, however, could be due...
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  • vitamin C lab report
    Measuring the Vitamin C content in a variety of fruit juices Background Information Vitamin C, also called ascorbic acid, is a water soluble vitamin. It is a powerful reducing agent that is able to decolourise blue DCPIP (2.6-dichlorophenol indophenols). The decolourisation of DCPIP can therefore be used to calculate the vitamin C content of a variety of fruit juices. Research Question – To determine how the content of Vitamin C (%) will differ in fresh fruits (orange, mango, lemon, lime,...
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  • Measurement of Vitamin C - 981 Words
    Lab Report: MEASUREMENT OF VITAMIN C Introduction Nutritional diseases were once the number one cause of death only a century ago, but rarely affect our lives today. The complete lack of vitamin C (ascorbic acid) characterized by dark purple spots on the skin and rotting gums, a disease called scurvy, took the lives of many sailors up until the mid 1800s when the prevention was discovered. Consequently, British sailors became referred to as ‘limeys’ because of their daily habit of...
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  • Benefits of Vitamin C - 672 Words
    Why is Vitamin C good for you? Health The most well-known health benefit of blackcurrants is that they contain large amounts of Vitamin C. Vitamins are substances we need to enable our bodies to live, grow and reproduce normally. Vitamin C is an essential nutrient - it cannot be made by the human body and we must therefore eat foods which contain it (Bibliography Ref: 13). Because the body breaks down Vitamin C very quickly and does not store very much, we need to eat Vitamin C containing...
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  • Vitamin C Content of a Lemon
    INTRODUCTION In our experiment we tested the amount of vitamin C in a certain amount of lemon juice. We did this with the help of PCPIP which is an indicator that shows the presence if C vitamin. For this we used the mentioned indicator, pipette, three eprouvetes, 0.1% of C vitamin solution and lemon juice. First we had to get the volume of 0.1% vitamin C solution that is needed for our amount of PCPIP (2ml) to decolorize. Then we had to determine the volume of lemon juice that is needed...
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  • Biology Vitamin C - 2041 Words
    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...
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  • vitamin c and b - 225 Words
    Vitamin Types Sources Functions Effects of Deficiency RDA Properties C(ascorbic acid) - Blackcurrants Rosehip Strawberries Oranges Lemons Cabbage Tomatoes Potatoes Apples Pears Acts as an antioxidant , prevents heart disease and cancer. Formation of collegen which unites cells as blood vessels, helps develop bones and teeth, helps white blood cells in fighting infections, prevents scurvy, necessary for the assimilation of non haem iron in the intestine. Scurvy rare...
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  • Vitamin C Lab Report
    St. Joseph School/ Ramallah Chemistry lab Report Students name: Laila Salah Date of exp: 11 /4/2013 Partner’s name: Wattan Date of sub: 25 /4/2013 T.Dima Mogannam kaibni Class: 11thsci.stream...
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  • Analysis of Vitamin C - Abstract
    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...
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  • Vitamin c investigation Chemistry
    Vitamin C Molecule Investigation Thomas Philpott Introduction Vitamin C (ascorbic acid) is an essential component of human nutrition, as it is an antioxidant that the body requires. Having a deficiency in Vitamin C can lead to scurvy, a disease characterized by abnormalities in human bones and teeth. Fruits and vegetables are common sources of Vitamin C, notably oranges and citrus fruits. Cooking and the application of heat destroy the vitamin so such fruits must be raw in order to obtain...
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  • Chemistry Vitamin C - 2358 Words
    tamin C, ascorbic acid, is one of the most important vitamins found in citrus juices, including orange juice. Often projects find that orange juices made from frozen concentrated orange juice (FCOJ) have the highest vitamin C levels as compared to freshly squeezed or not-from-concentrate (NFC) juices. This is probably due to the fact that vitamin C degrades over time in fresh and NFC, but doesn't degrade as much in FCOJ due to it being frozen until reconstitution. If one is comparing a NFC...
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  • Vitamin C Lab - 324 Words
    IB Biology Lab – Vitamin C content of food Aim: To compare the vitamin C content of different fruits using the decolourisation of DCPIP from blue to clear as the indicator. • You first need to estimate the volume of a known concentration of vitamin C solution required to decolourise 2 cm3 of DCPIP solution. • Then you need to determine the volume of fruit juice that decolourises 2 cm3 of DCPIP solution. This gives an estimate of the concentration of vitamin C in fruit juice. •...
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  • Vitamin C and Scurvy - 425 Words
    Scurvy (N.Lat. scorbutus) is a deficiency disease that results from insufficient intake of vitamin C, which is required for correct collagen synthesis in humans. The scientific name of vitamin C, ascorbic acid, is derived from the Latin name of scurvy, scorbutus. Scurvy leads to the formation of liver spots on the skin, spongy gums, and bleeding from all mucous membranes. The spots are most abundant on the thighs and legs, and a person with the ailment looks pale, feels depressed, and is...
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  • Orange and Vitamin C Solution
    Determination of the concentration of vitamin C in fruits/vegetables by using the DCPIP test (2008) Principle : Vitamin C is a strong reducing agent. It can decolorize the blue dye DCPIP. The amount of vitamin C in a food sample can be estimated by the amount of it that is used to decolorize a fixed amount of DCPIP. Apparatus : Test tube, clean and dry Test tube rack 5 ml syringe or a good quality squeezing pipette 1 ml pipette...
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  • How Is Vitamin C Manufactured
    How is Vitamin C manufactured? Ascorbic Acid Also known as: l-ascorbic acid, vitamin C, ascorbate A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant....
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  • Cooking in Vitamin C Content
    Sample: Microwave DCPIP 0.05% used mass of the green peppers (samples): 13.78g Titration 1 Titration 2 Titration 3 average 3.3 (cm3) 3.4(cm3) 3.2(cm3) 3.3(cm3) Sample: steamed DCPIP 0.005% used mass of the green peppers (samples): 12.41g Titration 1 Titration 2 Titration 3 average 11.6(cm3) 11.7(cm3) 11.6(cm3) 11.63(cm3) Sample: boiled DCPIP 0.005% used Mass of the green peppers (samples): 14.30g Titration 1 Titration 2 Titration 3 average 3.6(cm3) 3.8(cm3) 3.8(cm3) 3.73(cm3)...
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  • Titration of vitamin c - 545 Words
    Determination of Vitamin C by an Iodometric Titration Purpose: The goal of this lab is to determine the concentration of vitamin C in juices and Real Lemon. A redox titration, involving an iodometric method, will be used to do the analysis. The samples will be classified by their Vitamin C content. Introduction: Although most mammals can synthesize vitamin C, or ascorbic acid (C6H8O6), from sugars, man must ingest considerable quantities of this substance. The National Academy of Sciences...
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  • Vitamin C Content - 3490 Words
    BIOLOGY LABORATORY REPORT A – LEVEL MEDICINE (ALM 14) NAME : NURUL AQILAH BINTI MOHD NOR NRIC : 950814-01-**** STUDENT ID : 1311171622 GROUP : 11SC6 TITLE : THE VITAMIN C CONTENT OF FRUIT JUICES AND TABLETS DATE OF EXPERIMENT : 1ST AUGUST 2013 DATE OF...
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  • Vitamin C Content - 3233 Words
    OBJECTIVE  To investigate the vitamin C content of different fruit juices.  To identify which fruit juices has higher vitamin C content and the lowest vitamin C content.  To determine the standard curve of vitamin C based on percentage of vitamin C.  To differentiate between fresh juices and carton juices.  To consider the reliability and validity of the results. PROBLEM STATEMENT Which type of fruit juices has the most vitamin C content? HYPOTHESIS  The smaller the amount of...
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  • Investigating Vitamin C - 561 Words
    Investigating Vitamin C Background Vitamin C is found in green vegetables, fruits, and potatoes. It is essential for a healthy diet. The chemical name for vitamin C is ascorbic acid. Ascorbic acid is a good reducing agent and therefore it is easily oxidised. Methods for the detection of vitamin C involve titrating it against a solution of an oxidising agent. Where to start There are several oxidising agents that can be used and a commonly used one is 2,6-dichlorophenol-indophenol or...
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  • Vitamin C Lab - 1739 Words
    Equation HX + NaOH NaX + H2O 1 mole 1 mole 1 mole 1 mole Aim To analyze the Vitamin C from a rival company and compare with that of my company and find out the best value for the money spent by the consumer. Controlled Variable * Mass of the tablet and hereby vitamin C in rival company tablets * Consistency of components in the Vitamin C tablet * Concentration of NaOH Apparatus 1. Burette (50ml) 2. Conical flask (50ml) 3. Vitamin C tablet (1...
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  • Effect of Heat on Vitamin C
    Effect of Heat on Vitamin C Objective: - To determine whether the concentration of Vitamin C in a fruit juice changes upon heating at a constant temperature for different periods of time. - To investigate how the trend goes (whether the concentration of Vitamin C increases or decreases) if the amount of Vitamin C does change. Theory: - Hypothesis: The concentration of Vitamin C in the fruit juice changes and decreases upon heatingat a constant temperature for increasing periods of...
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  • vitamin C& DCPIP---dicussion
     Result: Since the number of fruit juice required decolorizing the blue CDPIP solution in decreased in the order: Red pepper >kiwifruit >lemon >orange. Therefore, Red pepper contain the largest concentration of vitamin C, the second is kiwifruit , the third one is lemon and the lest one which contain the least concentration of vitamin C is orange. Discussion: The reason for diluted the fruit juice is because the fruit juice are colored by the pigment in the fruit juice. It caused...
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  • Vitamin C Dcpip - 413 Words
    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...
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  • Vitamin C and Collagen - 2131 Words
    INTRODUCTION What is collagen ? Collagen is a group of naturally occurring proteins found in animals, especially in the flesh and connective tissues of mammals. It is the main component of connective tissue, and is the most abundant protein in mammals. Collagen, in the form of elongated fibrils, is mostly found in fibrous tissues such as tendon, ligament and skin, and is also abundant in cornea, cartilage, bone, blood vessels, the gut, and intervertebral disc. Certain collagens found in skin...
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  • Vitamin C Content of Apple Juice
    Vitamin C Content of Apple Juice Introduction Complete lack of ascorbic acid (a.k.a Vitamin C) in the diets of humans and other primates leads to a classic nutritional disease, scurvy. This disease was widespread in Europe during the fifteenth and sixteenth centuries, but it is rare today. Ascorbic acid is widely distributed in nature, but it occurs in extremely high concentrations in citrus and green plants such as green peppers and spinach. Ascorbic acid can be...
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  • Analysis of Vitamin C I2 + Starch
    (Woods) Analysis of Vitamin C I2 + starch - 1 - Vitamin C (ascorbic acid) was one of the first vitamins which established a relationship between a disease and its prevention by proper diet. Scurvy has been known for ages. Prevention of scurvy was prescribed by eating fresh vegetables and fruits. The active ingredient in fruits and vegetables that helps to prevent scurvy is ascorbic acid which primates, including humans, cannot synthesize. Ascorbic acid is an important biological...
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  • Commercial Vitamin C Tablets - Analysis
    Analysis of Commercial Vitamin C Tablets Aim: To employ iodometric titration to determine the content of vitamin C in commercial tablets using volumetric analysis and compares it with the manufacturersÂ’ specifications. Introduction Vitamin C is an essential substance for maintaining good health and it is proved to be the agent which prevents scurvy. Most animals can synthesize their own vitamin C, but some, such as human cannot. Owing to the increasing concern for oneÂ’s...
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  • Effect of temperature on Vitamin C content
    Effect of Temperature on Content of Vitamin C Introduction A daily intake of Vitamin C is essential for humans. Without it, the disease scurvy develops as sailors, explorers and people during the long winters in the Northern hemisphere found before the time of Captain Cook. The British Navy started giving sailors lime juice to prevent scurvy on long voyages in 1795. Vitamin C is found in high levels in foods such as oranges, limes, lemons, blackcurrants, parsley and capsicums. Vitamin C is...
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  • Vitamin C in Different Fruit Juice
    Activity 1.21- Is high Vitamin C all it claims to be? Purpose: * To investigate the vitamin C content of fruit juice * To investigate which type of fruit juice provides the most vitamin C The quantity of vitamin C in food and drink can be determined using a simple colour test. Vitamin C decolourises the blue dye DCPIP (dichlorophenolindolphenol). Vitamin C is an antioxidant and reduces the DCPIP. DCPIP changes from blue to colourless (or slightly pink) as it becomes reduced. We...
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  • Analysis of commercial vitamin C tablets
    Chemicals Vitamin C tablet, (1) standard 0.0110 M potassium iodate (KIO3) solution, (100 cm3) standard 0.060 M sodium thiosulphate solution, (Na2S2O3, 160 cm3) 1 M potassium iodide solution, (KI, 20 cm3) 0.5 M H2SO4, (150 cm3) freshly prepared starch solution. Apparatus Titration apparatus Principle In this experiment you are required to determine the vitamin C content of a commercial tablet and compare this with the manufacturers specification. Vitamin C is ascorbic acid, which is rapidly and...
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  • The Vitamin C Content of Fruit Juice
    Title : The Vitamin C content of fruit juice Aim : To investigate the vitamin C content of fruit juice. Introduction : [2]Vitamin C, also known as the ascorbic acid or the L-ascorbate, is required for the growth and repair of tissues in all parts of our body. It is necessary to form collagen, an important protein used to make skin, scar tissue, tendons, ligaments, and blood vessels. Vitamin C is essential for the healing of wounds as well as for the repair and maintenance of cartilage,...
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  • Biology Vitamin C Lab Report
    BIOLOGY LAB REPORT TITLE: DETERMINING THE VITAMIN C CONTENT IN VARIOUS FRUIT JUICE PREPARED BY: NOR HUSNA BINTI MOHD ROSLI CLASS: SC3 (ALUK 11) IC NUMBER: STUDENT ID: LECTURER’S NAME: MADAM ZAKIAH BINTI ZAKARIA SUBMISSION DATE: 22 AUGUST 2013 OBJECTIVES: To investigate the vitamin C content in various fruit juices which is based on the graph’s curve obtained. INTRODUCTION [pic] Vitamin C, or...
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  • Vitamin C Content of Fruit Juices
    BIOLOGY LABORATORY REPORT Name : Amirah Binti Shaharuddin IC No. : 930428-08-5326 Student ID : 2012400466 Group : 13M1 Title : The Vitamin C Content of Fruit Juices Lecturer : Madam Rita Rohaizah binti Sohari TITLE: THE VITAMIN C CONTENT OF FRUIT JUICES INTRODUCTION Vitamin C which is also known as ascorbic acid is an essential nutrient for human. It is a water-soluble vitamin that is necessary for normal growth and development. Water-soluble vitamins...
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  • Analysis of Commercial Vitamin C Tablets
    Analysis of commercial vitamin C tablets Objective To determine the vitamin C content in commercial vitamin C tablets by titration between vitamin C (ascorbic acid) & iodine solution. Hence, compare this data with the manufacturer's specification. Principle In this analysis, certain amount of iodine solution, which is known in excess, is added to acidified ascorbic acid solution. Brown iodine can be easily reduced by acidified ascorbic acid to form colourless iodide ion:...
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  • Vitamin - 410 Words
    Is High Vitamin C all it claims to be? These days, there is much concern on our consumption of food drink, we're told we do not intake the required daily level of fruit and veg, many manufactures claim to provide excellent levels of nutrients, This experiment will be carried out to see whether the vitamin c levels claimed by manufacturers are actually present in the drinks, this will be done by experimenting various drinks using blue DCPIP solution. The quantity of vitamin C in food and...
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  • determination of vitamin c content of tablet
     DETERMINATION OF VITAMIN C CONTENT IN COMMERCIAL (CENOVIS) TABLET ABSTRACT In this experiment, the vitamin C content of a commercial tablet is determined and compared with the manufacturers’ specification. Vitamin C is water-soluble and is an enantiomer of ascorbic acid. (Commercial vitamin C is often a mixture of ascorbic acid and other ascorbates.) Ascorbic acid, C6H8O6, is a reducing agent that reacts rapidly with iodine (I2). As the iodine is added during the titration, the ascorbic...
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  • IB biology assesment- the effect of heat on vitamin c
     Biology SL Internal Assessment What is the effect of heat on vitamin C concentrated in lemon juice? Introduction: “Vitamins are complex organic substances that are needed in very small amounts for many of the essential processes carried out in the body.” 1It is estimated and supported scientifically that only a few mg are filling the daily recommendation, which is essential for a healthy living. As most of vitamins cannot be produced by our bodies, we need to obtain...
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  • Iodometric: Vitamin C and Commercial Fruit Juices
    ANALYSIS OF VITAMIN C IN COMMERCIAL FRUIT JUICES BY IODOMETRIC TITRATION. SHAMSUL AZRIN BIN MD. KANAFE Final Year Project Report Submitted in Partial Fulfilment of the Requirement for the Degree of Bachelor of Science (Hons.) Chemistry in the Faculty of Applied Sciences, Universiti Teknologi MARA. APRIL 2009 This Final Year Project Report entitled “ANALYSIS OF VITAMIN C IN COMMERCIAL FRUIT JUICES BY IODOMETRIC TITRATION” was submitted by Shamsul Azrin Bin Md. Kanafe, in...
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  • Scurvy: Vitamin C and United Nations Children
    Scurvy is perhaps the oldest known deficiency disease. However, its specific relationship to ascorbic acid was not recognized until the 20th century. It generally occurs between six and 18 months of age, but can start much earlier in pre-mature babies or those borne of mothers who lacked nutritious food during their later stages of pregnancies. This makes it a type of malnutratian. Mal nutrtiian is a pretty broad typic but a lot of children suffer from it , Malnutrition is a dietary condition...
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  • Effects Of Temperature On Vitamin C In Fruit Juices
    PART B YOU WILL NOW DESIGN AN EXPERIMENT TO STUDY THE EFFECT OF A FACTOR AFFECTING VITAMIN C IN FRUIT JUICES WHAT IS THE EFFECT OF TEMPERATURE ON VITAMIN C IN FRUIT JUICES? The purpose of this experiment is to determine if the difference in temperature will damage vitamin C in any type of fruit juices. Five different temperatures of fruit juices will be used(5, 22, 50, 70, 90) degree Celsius to see how temperature affects the loss of vitamin C in fruit juices. The amount of vitamin C in the...
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  • Determination of Vitamin C content in beverages by Calorimetric Method
    FST 1101 Experiment 3: The Determination of Vitamin C in beverages by Colorimetric Method Name: Wong Chun Hong Matric no.: A0123932L Introduction Vitamin C, also known as ascorbic acid, is one of the essential nutrients the human body requires for it to function. There are many benefits of Vitamin C like the protection against immune system deficiencies, cardiovascular diseases, eye diseases and even skin wrinkling. It comes to no surprise how there is a huge emphasis on Vitamin C intake...
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  • Quantitative Analysis of Vitamin C Contained in Ribena
    Title: Quantitative analysis of vitamin C contained in ribena Aim: to determine the amount of Vitamin C in a sample of ribena Materials: * Vitamin C (ascorbic acid, C6H8O6) * 4% potassium iodide (KI) * 1M acetic acid (CH3COOH) * N-bromosuccinimide (NBS, C4H4BrNO2) Apparatus: * Conical flask * 100 ml volumetric flask * Weighing bottle * Analytical weight balance * Spatula * Funnel Results: Item: | Mass in grams | Mass of weighing bottle with...
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  • Experiment Determine Vitamin C in Pineapple Juice
    Materials : Pineapple juice, 0.1% ascorbic acid solution, 2,6-Dichlorophenol – Indophenol (DCPIP) solution, distill water, filter paper. Apparatus : Small test tube and rack, 1cm3 and 5cm3 syringes with needles, 250ml beaker, 25ml measuring cylinder, stirrer, electronic scale. Methods Part A: Standardization of DCPIP (Titrant) solution 1. 1.00g of ascorbic acid tablet was measured by electronic scale and dissolved in 100.00ml of distilled water. 2. A 1.00cm3 syringe was used to...
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  • Quantitative Analysis of Vitamin C Contained in a Fruit Juice
    Laboratory exercise 3 : Quantitative analysis of vitamin C contained in a fruit juice Aim: To investigate the amount of vitamin C found in all kinds of fruit juice Introduction : Vitamin C is an antioxidant, along with vitamin E, beta-carotene, and many other plant-based nutrients. Antioxidants block some of the damage caused by free radicals, substances that damage DNA. The build-up of free radicals over time may contribute to the aging process and the development of health conditions such...
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  • Thermal stability of Vitamin C in Fruit Juice
    962/4 2013-2014 Title: Thermal stability of Vitamin C in Fruit Juice Subtile: Effect of Temperature towards concentration of Vitamin C in Orange Juice Members of the group: Name Identification number Index Number Chan Chyi Yong 950818-08-6787 SA2051/1001 Choong Jian Wen 950620-08-5279 SA2051/1005 Liew Sin Yung 950507-08-5373 SA2051/1011 Yong Yi Xiang 950510-02-5531 SA2051/1018 Teacher Advisor: Pn Kanahambikai Date of Submit of this report: Marks:...
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  • Chemistry Lab Report : Determination of Ascorbic Acid Content in Vitamin C Tablets
    EXPERIMENT 1 DETERMINATION OF ASCORBIC ACID CONTENT IN VITAMIN C TABLETS INTRODUCTION To calculate the mass of the ascorbic acid and hence the mass percentage of ascorbic acid in the vitamin C tablet. PROCEDURES (Refer to Lab Manual) 1. Accurately weight vitamin C (effervescent type) in a 50 ml beaker. Add about 30 ml of deionised water to dissolve the vitamin C tablet. Once the tablet has dissolved completely, transfer the solution into a 250 ml volumetric flask via a plastic...
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  • What Type of Fruit Juice Provides the Most Vitamin C?
    What type of fruit juice provides the most vitamin C? In my investigation I plan to find out how much vitamin C there is in orange juice, pineapple juice and tropical juice and then compare my results to find out which juice has the most vitamin C. The independent variable is the type of juice and the dependant variable is the volume of fruit juice needed to decolourise 1cm3 Of 1% DCPIP solution. DCPIP solution can be used to measure the amount of vitamin C in each juice as an antioxidant...
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  • Analysis of Commercial Vitamin C Tablets. (Ascorbic acid content in one tablet)
    Date: 25 Nov, 2004 Objective: 1. To standardize sodium thiosulphate for titration use. 2. To find out the concentration of Vitamin C in the tablet. Theory: This experiment involves titration of redox reaction. Redox reaction means reduction and oxidation. In which oxidizing agent and reducing agent are mixed and oxidize/reduce each other. One losses electron(s) and increase in oxidation number when is oxidized, and vice versa. In order to find out concentration of the ascorbic acid in the...
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  • Designing an Experiment to Measure Vitamin C Content in Fruit Juices
    The experiment is trying to determine how much of a solution containing vitamin C is required to be added to 1 cm3 of blue chemical to change its colour from blue to clear. The experiment users an new and old lemon, orange and blackcurrant juice, each with varying amounts of vitamin C content. Each experiment has independent and dependent variables. The solutions of soft drinks contain different levels of vitamin C (with old and new varieties) will be the independent variables in the...
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  • Chemistry Lab Report for Vitamin C Estimation by Back(Idiometric) Titration
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    Practical Task: To compare the concentration of vitamin C in different brands of orange juice. Juice sample provided: 0.1% vitamin C solution, fresh orange juice, You C 1000 orange water. Aim of investigation: To compare and verify the amount of vitamin C in Mr. Juicy and You C 1000 orange juice. Introduction: Problem: To compare the concentration of vitamin C Hypothesis: Concentration of vitamin C in Mr. Juicy is about 0.02 % Concentration of vitamin C in You C 1000 orange...
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    Vitamin E is a fat-soluble vitamin found in vegetable oil, nuts, leafy green vegetables and whole-wheat flour. Vitamin E is an antitoxin that protects your cells against the potentially damaging byproducts of your body's metabolism. The daily amount of Vitamin E that should taken by a healthy adult is 15 mg or 22 IU (International Units). Vitamin E does many good things for our body. It promotes normal growth and development in younger individuals. It acts as an anti-blood clotting...
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  • The Importance of Vitamins - 305 Words
    Vitamins are very important for everyone to take daily. People of all ages can always benefit from taking multivitamins. There are many benefits that can come from taking a daily multivitamin as recommended. Here are just a few benefits that a multivitamin can hold; a longer life span is the best reason I think of on why I would recommend to anyone to take a daily multivitamin. By taking a daily multivitamin you can help with the development of better bodily functions, it helps you to...
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  • Vitamins Essay - 478 Words
    Vitamins, Nutrients, and Minerals Vitamins, nutrients, and minerals are all important substances that are required to lead a happy, healthy life. Firstly, vitamins are an organic compound required by the body in small amounts of metabolism, to protect health, and for proper growth of children. Vitamins also assist in the formation of hormones, blood cells, nervous systems chemicals, and genetic material. There are 13 well-identified vitamins. Some examples of the 13...
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  • Vita C - 436 Words
    Determination of Ascorbic Acid in Vitamin C Tablets Done by: lora ID #: Date:12/3/2011 Objectives: The aim of this experiment is to determine the weight of ascorbic acid in three vitamin C tablets by titrating it directly with KBrO3, then back titration by Na2S2O3. Introduction: Vitamin C is a weak acid and a water soluble substance and it is often called ascorbic acid. It is useful for many biological activities and main functions such as: it is used to provide reducing equivalents for...
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  • Vitamin and Lemon Grass - 1735 Words
    Project Title: Making of Malunggay Salad and Lemon Grass Juice I. INTRODUCTION 2.1 BACKGROUND OF THE PROBLEM One of the main issues that we have right now is getting the right vitamins and nutrients to our body. How we will do this is by choosing the food that we eat. Aside from that, we have to take consideration its cost. Can Filipino, in all walks of life, afford a healthy meal? More Filipinos have been eating rice just to withstand empty stomach rather than eating a...
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  • Vitamin Identify Machine - 1266 Words
    A Machine to identify Vitamins Md. Shafiul Alam ID: 11-94840-2, Section: A American International University (AIUB) Email: fressmind.aiub@ymail.com Abstract. Vitamin is one of the essential elements of human body. To keep our human body fit there is no alternative way of vitamins. We get this essential element in different foods, fruits, vegetable etc. But now a days this vitamin is being identified and measured by the biological and chemical activities which are very much complicated...
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  • Vitamins Are Good for Health?
    1. Vitamins are good for everyone’s health. Discuss A vitamin is an organic compound required by an organism as a vital nutrient in limited amounts. An organic chemical compound is called a vitamin when it cannot be produced in sufficient quantities by an organism, and must be obtained from the diet. (Vitamin) Some of the most important vitamins and most commonly used which are good for everyone’s health are Vitamin A, Vitamin B1, Vitamin B2, Vitamin B6, Vitamin C, Vitamin E and Niacin (B3)....
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  • An Investigation to Find Out the Answer of How Would the Cooking Affect the Vitamin C Content of the Vegetable
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  • the vitamin content of fruit juice
    THE VITAMIN C CONTENT OF FRUIT JUICE Aim: To investigate the vitamin C content of fruit juice.Hypothesis: I believe the more drops of fruit juice taken to decolourise DCPIP, the smaller the amount of vitamin C in that fruit juice. This is because DCPIP needed to be decolourised by ascorbic acid in fruit juice, so less concentration of ascorbic acids means that more ascorbic acids is needed to decolourised DCPIP. I believe that freshly squeezed orange is going to have the most Vitamin C...
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  • Chem Lab Report. Objective: to Determine the Content of Vitamin C in Commercial Tablets (Redox Titration and Back Titration)
    Laboratory Report: Experiment 3 Analysis of commercial vitamin C tablets Name: Cheung Chun Hin, Harry Class: 6L (12) Date: 14-10-2009 Objective: To determine the content of vitamin C in commercial tablets (redox titration and back titration) Principle of method: Vitamin C, which is ascorbic acid, reacts with iodine rapidly in an acidic medium. C6H8O6 (aq) + I2 (aq) C6H6O6 (aq) + 2H+(aq) + 2I- (aq) Since iodine dissolves slightly in water, ascorbic acid cannot be...
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  • Benefits of Vitamin E - 548 Words
    Benefits of Vitamin E In this article we will look at the benefits of vitamin E. Vitamin E is a fat soluble vitamin found in many foods, especially certain fats and oils. It is a powerful antioxidant that protects the body from damage caused by free radicals. Vitamin E has many other health benefits also. First of all, to fully understand the importance of the effect of vitamin E on free radicals, you must understand what a free radical is and what it can do to your body. A free radical is...
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  • The Benefits of Vitamin E - 884 Words
    The benefits of vitamin E are now fairly well established. Out of a controversial past it has become clear that vitamin E plays important roles as an antioxidant, in your immune system, in preventing heart disease and even in helping prevent cancer. As if this wasn't enough, the research continues into other beneficial effects that vitamin E may have. It's not particularly easy to come by however meaning if you want to get all the benefits you probably should consider a supplement to...
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  • Vitamine C Content - 767 Words
    Vitamin C Introduction: The lab consists in determining the vitamin C concentration in a solution by a redox titration using iodine. Vitamin C (ascorbic acid) is a water-soluble, essential oxidant that plays a vital role in the protection of the body from infections and disease it is acquired from primary fruits and vegetables. With the use of different materials as natural orange juice, Tampico (chemical orange juice) and other solutions that contain vitamin C we will find the amount of...
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  • redox titration - 927 Words
    Determination of Vitamin C by Redox Titration with Iodine Vitamin C (ascorbic acid) is an antioxidant that is essential for human nutrition. Vitamin C deficiency can lead to a disease called scurvy, which is characterized by abnormalities in the bones and teeth. Many fruits and vegetables contain vitamin C, but cooking destroys the vitamin, so raw citrus fruits and their juices are the main source of ascorbic acid for most people. One way to determine the amount of vitamin C in food is to use...
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  • Dcpip Testr - 935 Words
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  • Nutriton - 5657 Words
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  • diet analysis - 660 Words
    Diet Analysis Project I analyzed my food intake over a 24- hour period, and although I was not surprised by what I observed, I noticed that I was not meeting the daily requirements for all of the food groups. One major area of concern was my fruit intake. Even though I do eat fruit sometimes, I don’t eat it regularly, and the day that I observed my intake was no exception. I don’t eat as often as I should due to my schedule, and in addition to that, fruit just doesn’t seem substantial enough...
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  • Plan and Design, butter vs margarine
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  • chemistry project - 572 Words
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  • Pineapple Jelly Enzyme Lab
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  • Miss - 1825 Words
    CAL Biology Practical 2 – Identification of Biochemicals in Pure Form Name :……………………………………………………………. MARK: Class :……………………………………………………………. PRACTICAL 2: IDENTIFICATION OF BIOCHEMICALS IN PURE FORM CAUTION: Any heating that has to be done in the following tests should be carried out in a water bath at the boiling point of water. Direct heating of test-tubes should not take place. Introduction Biochemical Tests Qualitative - present/ absent Semi-quantitative - present in >/<...
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  • Berries - 397 Words
    La Bella Blue Cancer prevention: Blueberries Spinach Blueberries is one of the many cancer preventing foods. Blueberries are full of antioxidants and flavonoids that prevent cell damage from happening. Antioxidants is a substance, like Vitamin C or E that counteracts the damaging effects of oxidation in a living organism. A flavonoid is any group of organic compounds that occur as a pigments in fruits and flowers. One thing that antioxidants is neutralize free radicals, atoms that...
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  • Source Of Potassium - 642 Words
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  • Yeah cuz - 282 Words
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  • Scurvy: How Can Science Help Prevent Dietary Deficiency Diseases?
    Scurvy: How Can Science Help Prevent Dietary Deficiency Diseases? Figure [ 1 ] Courtesy of Google Images An Introduction Scurvy is a disease which is caused by a deficiency of Vitamin C. A lack of vitamin C interferes with collagen synthesis which is the formation of the body's tissues. When the body cannot generate collagen the tissue deteriorates. This causes a range of symptoms such as: * Gum disease * Anaemia * Pains in the muscles * Pain in the joints (Scurvy: NHS)...
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  • How to Take Care of a Pet Guinea Pig
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  • BENEFITS OF DETOX WATER - 1139 Words
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  • Pomelo: Giant Grapefruit - 280 Words
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  • Scurvy Paper - 305 Words
    Scurvy: How Can Science Help Prevent Dietary Deficiency Diseases? An Introduction ….. Scurvy is a disease which is caused by a deficiency of Vitamin C. A lack of vitamin C interferes with collagen synthesis which is the formation of the body's tissues. When the body cannot generate collagen the tissue deteriorates. This causes a range of symptoms such as: * Gum disease * Anaemia * Pains in the muscles * Pain in the joints (Scurvy: NHS) Vitamin C can be found in citrus...
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  • Estimation of Ascorbic Acid - 691 Words
    Title: Estimation of Ascorbic acid Aim: To determine the ascorbic acid content of canned apple and orange juice To determine the volume of canned juice necessary to provide 75mg of Vitamin C Introduction: For the estimation of ascorbic acid, the method used involved the titration of the ascorbic acid, in the presence of a redox indicator 2,6-dichlorophenol-indophenol (DCPIP) which acts as both an oxidant so as to oxidise the ascorbic acid to dehydroascorbic acid, and it acts as an...
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  • Fruits Benefits. Essay - 706 Words
    1 . Fruits (1) Apples An apple's 3 g of fiber help you meet your fiber goal of 20 g to 30 g daily. High-fiber diets can lower heart disease risk. (2) Apricots A good source of beta-carotene (which is converted to vitamin A by the body), providing the equivalent of 35% of the RDA for vitamin A (3) Bananas Bananas are a great source of potassium, which plays a key role in heart health and muscle function. Plus each one has 2 g of fiber. (4) Blueberries Blueberries help prevent...
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  • Research paper - 5902 Words
    Research Paper A vitamin is a group of organic compounds that are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body. Vitamin C is one of the most basic vitamins we humans use and need, experts say it’s the safest most efficient nutrient. It helps with protection against immune system deficiencies, cardiovascular diseases, eye diseases and even skin wrinkling. But where can we find this vitamin? Well, many...
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  • How Science Works - 1692 Words
    1 Lifestyle, health and risk ■ HSW 1.1: Criterion 5 – Water as a liquid at room temperature Criterion 5: Analysis and interpretation of data to recognise correlations and causal relationships Consider the water molecule, its properties and its physical state. Water has a relative molecular mass (Mr) of only 18, yet it is a liquid at room temperature. This is surprising; it contrasts with other small molecules, which are usually gases at such temperatures. Examples include methane...
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  • Apples Have a Good Claim to Promote Health
    Apples have a good claim to promote health. They contain Vitamin C, which aids the immune system, and phenols, which reduce cholesterol. They also reduce tooth decay by cleaning one's teeth and killing off bacteria. It has also been suggested by Cornell University researchers that the quercetin found in apples protects brain cells against neuron-degenerative disorders like Alzheimer's disease. An apple a day may not keep any physicians at bay, but apples are very nutritious. They are high in...
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  • RRL of oxidation of fruits - 1260 Words
    Preparation of food takes a lot of time. Even if the dish is only composed of fruits. A lot of dishes have vegetables in them. These can also be useful especially when preparing lots of different food at the same time. If you look at cooking websites they will suggest to use lemon water. In our experiment we will attempt to find out which is better at preserving the sliced, chopped, and or diced food. Since our experiments are limited by time and costs, we will stick to the simplest of the...
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  • Bio SBA Report 2
    Aim To investigate in the amount of antioxidants present in the two given tea samples for four consecutive brews each. Introduction Hypothesis: The amount of antioxidants would decrease as the number of brews increases. Biological principal: An antioxidant is a molecule that inhibits the oxidation of other molecules. Oxidation is a chemical reaction involving the loss of electrons. Oxidation reactions can produce free radicals. These radicals can start chain reactions. When the chain reaction...
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  • Case Study Report - 6130 Words
    3 Day Average - Alias Incognito For days: 06 - 14 - 2010, 06 - 15 - 2010, 06 - 16 - 2010 Meals - Breakfast, Lunch, Dinner, Snack Profile DRI Goals Profile Profile Name Sex Height Weight Age BMI Smoker Vegetarian Alias Incognito Male 6 ft. 0 inch. 298 45 years 40 no no DRI Goals Nutrient Energy Calories Carbohydrates Fat Protein 2991 kcal 336 - 486 g 66 - 116 g 108 g 45%-65% of kilocalories 20%-35% of kilocalories Daily requirement based on grams per kilogram of body weight DRI Fat...
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  • Nutrtionest - 1622 Words
    Determination of Vitamin C Concentration by Titration (Redox Titration Using Iodate Solution) Introduction This method determines the vitamin C concentration in a solution by a redox titration with potassium iodate in the presence of potassium iodide. Vitamin C, more properly called ascorbic acid, is an essential antioxidant needed by the human body (see additional notes). When iodate ions (IO3−) are added to an acidic solution containing iodide ions (I−), an oxidation-reduction reaction...
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