Analysis of Vitamin C - Abstract

Topics: Citrus, Orange, Vitamin C Pages: 3 (938 words) Published: December 31, 2012
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 the DCPIP turned colourless and recording the amount of Vitamin C needed to make the DCPIP colourless, the molarity of Vitamin C in each fruit could be calculated and it was found that lemon has the most amount of Vitamin C followed by lime and orange.

Research Question/Hypothesis/Introduction
The research question brought out was about the concentration of Vitamin C in three different citrus fruits-lemon, lime and orange. The research question was chosen as people eat citrus fruits every day and it is important that we know which ones have to most Vitamin C. The results show that lemon has the highest molarity of Vitamin C. It is significant as consumers will know what fruit contains the most Vitamin C which is essential to health. We are trying to find out what citrus fruit has the highest amount of Vitamin C and made a hypothesis that lemon has the highest molarity of Vitamin C. Vitamins are molecules required by the body in order to maintain healthy. It is the daily requirements of our body. If we do not have enough of Vitamin C, we will result in a disease call scurvy which leads to the formation of brown spots on the skin, spongy gums, and bleeding from all mucous membranes.

Research Methods and Materials
The apparatus and materials used were Orange, Lemon, Lime, 0.1g/1000cm³ of indophenol(DCPIP), 2mol/dm⁻³ of ethanoic acid, 50cm³ burette, pipette, clip, 250cm³ conical flasks, 100cm³ volumetric flasks, 250cm³ beakers, filter funnel, retort stand and...

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