stream ------------------------------------------------------------------------------------------------------------- Title of experiment The determination of vitamin C. Aim(s) of the experiment (objectives) To determine the concentration of vitamin C in different kinds of juices. Hypothesis Freshly squeezed juice will have the most vitamin C compared to the other types of juices and drinks‚ because the fruit is picked fresh‚ and it is not stored‚ preserved or exposed to oxygen. Chemicals and
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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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Along with other minerals‚ vitamins are substances that a person can find in the food they eat. There are nutrients which are essential to the body‚ because all metabolic reactions in the organism happen thanks to their presence. One of the greatest things about vitamins is that they can be taken in both pill and liquid form. Experts in nutrition consider liquid vitamins to be a remarkable breakthrough in the domain. This is one of the reasons which may explain the lately outburst of liquid supplement
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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 to
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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 ascorbic
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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 the
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Vitamin D Of the four fat -soluble vitamins‚ vitamin D is the one concerned with efficient calcium and phosphorus absorption. Working with various hormones-- in particular‚ calcitonin and the parathyroid hormone--vitamin D’s primary role is to ensure that calcium and phosphorous are absorbed from the intestinal tract into the bloodstream. There‚ the vitamin helps maintain concentrations of the two minerals in the right proportions (the amounts of calcium and phosphate in the blood--as well as the
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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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multiple Vitamin and Mineral Supplement with DHA. I also have Equate Woman’s One Daily with calcium‚ Iron‚ and Zinc multivitamin and Mineral Supplement. My son‚ although an adult‚ prefers the taste of a chewable‚ which is why I have Spider-man vitamins on hand for a 20 year old. The benefit of taking either of these vitamins every day is that no matter what you eat each day‚ since a daily diet usually varies‚ your body is guaranteed to receive at least the minimum amount of essential vitamins and
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decolourised. 5. The volume of the ascorbic acid used to decolourised the DCPIPsolution was recorded. 6. Step 2 to 5 was repeated twice to obtain the average volume of thr ascorbic acid solution used. Part B: Determination of the concentration of vitamin C in pineapple juice 1. A 1.00cm3 syringe was used to transfer 1.00cm3of DCPIP solution into a small test tube. 2. A 5.00cm3 of syringe was filled up with 5.00cm3 of pineapple juice. 3. The needle of the 5.00cm3 was placed at the bottom
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