This website uses cookies to ensure you have the best experience. Learn more

Vitamin C Analysis

2947 words - 12 pages

Vitamin C
Background Information

Vitamins play an essential role in animal metabolic processes. They are groups of complex organic compounds that do not provide energy. However, without vitamins, animals may develop deficiency diseases or other abnormal conditions. Although most animals cannot synthesise vitamins, certain animals can. Apart from vitamin D, the human body cannot make its own vitamins. As humans, we must obtain the vitamins we require through the food that we consume.
2D Structure of Vitamin C
2D Structure of Vitamin C

3D Structure of Vitamin C
3D Structure of Vitamin C
Vitamin C also known as L-Ascorbic acid is one of the most important nutrients and is essential ...view middle of the document...

Furthermore, a person is more likely to be affected by cardiovascular disease if they lack in vitamin C than someone who has sufficient vitamin C. The cardiovascular disease, atherosclerosis may develop due to the fact that when the artery lining is damaged, there is a lack of vitamin C to aid the growth and repair of the artery lining.
However, there are many sources of vitamin C. Good sources of fruits and vegetables are blueberries, mangoes, cranberries, tomatoes, pineapples, citrus fruits, green leafy vegetables, cabbage, parsley, watercress, sweet potatoes and white potatoes.

* To compare two methods for finding the vitamin C content of a solution taken from titrations with DCPIP or Iodine.
* To investigate which type of fruit juice has the highest vitamin C content.
* Concentrated orange juice has the highest vitamin C content compared to the other fruit juices tested.
* The juices containing the larger amount of citrus fruit content, will have the larger vitamin C content.
* Independent Variable/Manipulated Variable: Type of fruit juice/solution used
* Dependent Variable/Responding Variable: Volume of fruit juice/solution required to reach the end point of the reaction with Iodine or DCPIP.

DCPIP solution and Iodine solution may be reacted with vitamin C or ascorbic acid to investigate the amount of vitamin C in a solution.

Equipment needed:

Burette and stand
100 mL or 200 mL volumetric flask
20 mL pipette
10 mL and 100 mL measuring cylinders
250 mL conical flasks
Volumetric pipette

* Make up the solution that you will need throughout you experiment :
* Weigh out 0.5g of DCPIP solid and add 500cm3 of water to create the DCPIP solution
* Weigh out 0.5g of ascorbic acid solid and add it to 500cm3 of water to make up your ascorbic acid solution
* You will also need 2 mol dm-3 hydrochloric acid solution
* You will need 0.005mol dm-3 iodine solution (this was prepared for me)
* Starch indicator solution: (0.5%). Weigh 0.25 g of soluble starch and add it to 50 mL of near boiling water in a 100 mL conical flask. Stir to dissolve and cool before using.


When in solution, Iodine has a brown colour but Iodide ions are colourless in solution. In this reaction, Starch indicator solution is added to the ascorbic acid/fruit juices, so that when the Iodine is added, a blue-black coloured complex occurs.

* Pipette a 20 mL aliquot of the sample solution (Ascorbic acid/Fruit juices) into a 250 mL conical flask
* Measure out using a 200ml measuring cylinder about 150 mL of distilled water
* Add the distilled water in to the conical flask
* Add 1 mL of the starch indicator solution that you have made, using a 1mL pipette.
* Shake the flask gently and place on a white tile under a burette filled with 0.005 mol dm3
* Titrate the sample with the 0.005 mol L−1 iodine solution.
* Shake the...

Other assignments on Vitamin C Analysis

Econ Essay

1447 words - 6 pages 1. Determining changes in equilibrium price and quantity for a perfectly competitive industry given changes in demand and/or supply (Ch. 2, p. 60-65; Class Notes) A. Graphical analysis given demand and supply curves a) While there is increased awareness of Vitamin C available from orange juice, a hard, freezing winter occurs in most of the orange producing areas. Demand increases while supply decreases. b

Swot Analysis Of Reliance Communication

1509 words - 7 pages Visakhapatanam in Andhra Pradesh as the ideal location for setting up the tsunami warning system. 6. Who was appointed as the new chief of India’s external espionage agency, the Research and Analysis Wing (RAW)? Hormis Tharakan Explanatory Answer Kerala police chief Hormis Tharakan as the new chief of the Research and Analysis Wing (RAW), the external intelligence agency, in place of C D Sahay, who retired in Jan. 7. Which well known historian was in


3105 words - 13 pages these substances may affect brain function. Eliminating foods that contain gluten and casein from the diet may cause side effects and should not be done without the advice of a qualified health care provider. Studies have shown that vitamin B, magnesium (improves the effects of vitamin B), and cod liver oil supplements (which contain vitamins A and D) may improve behavior, eye contact, attention span, and learning in autistic people. Vitamin C has been shown to improve depression and lessen the severity of symptoms in people with autism.

Production Of Flour From Yam Tuber

5344 words - 22 pages stored in the various structures for 4-6 month in fresh weight (CIGR, 2009). Yam is however best stored in dried forms as flour which can sustain the quality of yam for 12-16months. The Nutritional Values of Yam. The predominant nutrient in yam is carbohydrate, though carbohydrates are the most important elements in tubers. Yams are high in Vitamin C, dietary fibre, Vitamin B6, Potassium and Manganese, while being low in saturated fats and

Kentucky Fried Chicken (Kfc)

6627 words - 27 pages , Saturated Fat, Cholesterol, Sodium, Protein, Fiber, Sugar, Vitamin A, Vitamin C, Calcium and Iron Content of KFC's Menu Items Colonel’s Sampler Menu Guide A new menu option at KFC… The Colonel’s Sampler is your choice of 3 individual sides and a freshly baked biscuit. Click above for a list of side choices and vegetarian classifications. This nutritional data is based on standard portion product guidelines and data from independent testing


6030 words - 25 pages oil and its implication in the degradation of vitamin A. International Journal of Pharmaceutics, 147, 31-41. Hamada, J. S., Hashim, I. B., & Sharif, A. F. (2002). Preliminary analysis and potential uses of date pits in foods. Food Chemistry, 76, 135-137. Hobani, A. I. (1998). Rheological behaviour of date-water concentrates. Journal of Food Engineering, 36, 349-357. Hsu, S. Y., & Yu, S. H. (2002). Comparisons on 11 plant oil fat substitutes for


8347 words - 34 pages costs. Davis, R., Aden, A. & Pienkos, P. T. Techno-economic analysis of autotrophic microalgae for fuel production. Appl. Energy 88, 3524–3531 (2011). Tirichine, L. & Bowler, C. Decoding algal genomes: tracing back the history of photosynthetic life on Earth. Plant J. 66, 45–57 (2011). This article reviews genomic sequencing efforts in algae and describes diversity from a functional perspective. Bechet, Q., Shilton, A., Fringer, O. B., Munoz, R

Fair N Lovely

5210 words - 21 pages MARKETING MANAGEMENT Table of Contents Objective 2 Product Category Definition 2 Fairness Cream Market 3 Competitive Landscape 4 Environmental Analysis 5 Porter’s Five Force Analysis 10 Introduction to the Company and our product “Fair and Lovely” 12 STP Analysis 15 Consumer Behaviour 18 SWOT Analysis 26 Recommendations 27 Bibliography 28 Product Category Definition Fairness Cream products are a part of the


6858 words - 28 pages properties, in addition to their culinary appeal. Mushroom contains many essential amino acids. As a group, Mushroom also contains some unsaturated fatty acids; provide several of the B vitamins, and vitamin D.  Mushroom are nutritious: They are a good source of B vitamins, especially niacin and riboflavin, and rank the highest among vegetables for protein content.   1.1 Origin of the Report This report has been formulated to partially fulfill

Effect Of Electromagnetic Radiation From Mobile

5086 words - 21 pages al. [24]. STATISTICAL ANALYSIS All data are expressed as mean±S.E.M. (n), where n refers to the number of animals. Statistical comparisons between the means of animals exposed to EMR and those of control animals were carried out by the independent t-test using SPSS (Statistical Package for Social Sciences) version 14 for each of the adult and young rats in each time interval separately. Significance was determined at p < 0.05. RESULTS Data


714 words - 3 pages The first ethical issue presented in the ethics game simulation was whether to warn consumers about the contaminated product and what information to provide consumers about the contaminant. The second ethical issue was whether to sell a product that does not meet U.S. safety requirements in a foreign market that has lower safety restrictions. G-BioSport was not required to meet prior approval from the Federal Drug Administration before they

Similar Documents

Vitamin C Essay

934 words - 4 pages Vitamin C (ASCORBIC ACID) Overview Information Vitamin C is a vitamin. Some animals can make their own vitamin C, but people must get this vitamin from food and other sources. Good sources of vitamin C are fresh fruits and vegetables, especially citrus fruits. Vitamin C can also be made in a laboratory. Most experts recommend getting vitamin C from a diet high in fruits and vegetables rather than taking supplements. Fresh

Lost Essay

2181 words - 9 pages Bile; HCl HCl; pepsin If the diet is deficient in one or more of the ____ amino acids, the body must break down existing proteins to provide the amino acids. Nonessential Essential Dipeptides Dispensible Which micronutrient is of concern when someone is following a vegan diet: Vitamin A Vitamin B12 Vitamin C Thiamin Deficiency of which vitamin or mineral can lead to

Energy Drinks, Sports Drink Essay

2629 words - 11 pages Competition in energy drinks, sports drinks INTRODUCTION Alternative beverages such as sports drinks, energy drinks, and vitamin-enhanced beverages developed into an important competitor for the beverage industry and saw rapid growth in the mid-2000s. Alternative beverages compete on the basis of differentiation from each other in the market and traditional drinks, such as carbonated soft drinks and fruit juices. The largest sellers of

Mid Day Meals India Essay

805 words - 4 pages nutrition deficiency, anaemia, lack of vitamin A and iodine among many children in the country. (Rani & Sharma) A research work carried out by the centre for equity studies Delhi states that: - The drawbacks of the centralised approach include lack of employment, increased risk of food spoilage, no community participation, and lack of transparency; hence a research will be done to determine the effectiveness and viability of this approach and its