The commercially sold juices would have most likely been exposed to the conditions leading to the deterioration in the content of vitamin C. In this experiment the independent variables were the juices that were being tested for their vitamin C content. The volume of each required to make a standard volume of DCPIP (dichlorophenolindophenol) change from blue to clear was measured. This was the dependent variable. These juices were titrated using a solution. The fixed variable of the experiment was the amount of DCPIP in each beaker and the room temperature. Both of these remained constant throughout the experiment. The importance of the room temperature being constant and not too high is because otherwise the vitamin C content of any and all the juices may have been altered, since vitamin C is heat labile. Moreover, if the temperature varied, the measured results might have varied also. The DCPIP was carefully made to the concentration of 0.1%. In each case 2 milliliters of DCPIP was taken. The amount, 2 milliliters of DCPIP, was chosen because it was not too much or too little an amount for the reactions to be seen clearly, without taking too much time. Vitamin C was first discovered because of its absence, during the age of exploration. Sailors on long sea voyages suffered very often from bleeding gums, loosened teeth, and aching joints. These were the symptoms of the disease now called scurvy. It is called scurvy because of "the presence of scurf's (or scales) on the skin". It was James Lind that showed that scurvy could be cured and prevented by eating "greens, fresh vegetables, and ripe fruits". However, it was the Polish biochemist, Casmir Funk, which named the missing group vitamines. He named this because he believed that they contained an amine group. Vitamines means "life amines". It is from the word that we get the word, vitamin. When vitamin C was finally isolated in 1925, it was given the name ascorbic acid because ascorbic means "no scurvy".
Vitamin C decreases with temperature. ... Hot tropical areas produce fruit with lower levels of vitamin C. ... The position on the tree also affects vitamin C levels. ... For example if more vitamin A was present, there would be less of Vitamin C. ... The effect of freshness of fruit on vitamin C content could be another experiment as well as the effect of temperature on vitamin C concentration. ...
Vitamin C Functions of Vitamin C Vitamin provides many functions for the body. ... This function of Vitamin C leads to many other services that Vitamin C provides for the body. ... Vitamin C is a big contributor to the production of collagen. ... Deficiencies of Vitamin C The body must have Vitamin C to provide the previously-mentioned functions for the body to operate properly. ... Sources of Vitamin C Vitamin C comes in many forms. ...
Vitamin C is a water-soluble vitamin, and is also know n as Ascorbic Acid. ... Most animals can produce their own vitamin C. ... Foods that contain small amounts of vitamin C and are not considered good sources of calcium can contribute a good amount of vitamin C to a diet if eaten often or in large amounts. ... What's the purpose of Vitamin C? ... The use of vitamin C supplements is almost never necessary. ...
Vitamin C assists the immune system in two of its many functions. ... As an antioxidant, vitamin C neutralizes free radicals in the human body. ... The minimum amount of vitamin C to be taken daily is about 10mg. ... Since vitamin C is a water-soluble vitamin and excess vitamin C is expelled through the urine; a person cannot take too much vitamin C that it may become harmful to the body. ... Some people today feel that vitamin C does more harm than good to the human body. ...
So what are the right vitamins? ... Perhaps the most common vitamin supplement is of vitamin C, also known as ascorbic acid. Vitamin C is water soluble, versus fat soluble , so it cannot be stored in the body, and therefore needs to be ingested every day. ... Vitamin D is a fat-soluble vitamin that can be found in foods such as oily fish, eggs, margarine, bread, breakfast cereals, and powdered milk. Where people most often get this vitamin, though, is from the sun. ...
Aim The aim is to find out how much Vitamin C fruit juices contains. ... The Vitamin C, also known as ascorbic acid, is an antioxidant every individuals need. ... The iodine causes the Vitamin C to oxidise whilst the iodine is reduce into iodide ions. ... Measure 25ml of Vitamin C using the pipette into the conical flask. 2. ... Repeat the same procedure using vitamin C until it you have completed 3 vitamin C results. 9. ...
For vitamin and minerals I took in 748.3 micrograms of vitamin A, 155.46mg of vitamin c, 1.2 mg of vitamin B6, 185.59mcg of folate , 942.64mg of calcium, 269.34 of magnesium, 18.54mg of iron, and 8.42mg of zinc. ... The normal recommendation nutrition values and intake for myself for the three days period would be 3, 052.93 calories 59.87mg of protein, 419.78 of carbohydrates, 34.73 grams of dietary fiber. for vitamin and minerals 900 mcg of vitamin A , 90 mg of vitamin c, 1.30mg of vitamin B6, 400mcg of folate, 1,000mg of calcium, 420.00mg of magnesium, 8.0mg of iron and 11.00 of zinc. ......
Vitamin tablets aren't just for the elderly or the children. ... Vitamin B6 allows proper brain function and makes red blood cells. ... (ninds.nih.gov) Your antioxidants, which are your vitamin C and E, are very important also. ... Iron is also an essential vitamin. ... Some have the tablets separated by each individual vitamin. ...
Vitamins such as vitamin A, B, C, and D do different things for the body. ... Vitamin C is also a very important vitamin. ... Vitamin C also helps maintain teeth. Most vitamin C is obtained from fruits and vegetables. ... "For example cooking in Copper pots destroys Vitamin C, Folic Acid, and Vitamin E." ...
