Vitamin C. The objective of this project is the determination of the amount of vitamin C in drinks. The investigation helps us know which brand and which type of fruit drink contains more vitamin C.

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Vitamin C content in drinks

紙包飲品內丙種維生素的含量

By

Wong Ka Kit(黃家傑)

Ng Lok Hang(伍諾行)

Poon Kim Fai(潘劍煇)

Chan Wai(陳瑋)

Tsang Shun Wing(曾順榮)

Submitted for participation in the Sixth Hong Kong Chemistry Olympiad for the Secondary Schools

From

T.W.G.Hs

Mrs. Fung Wong Fung Ting College

東華三院馮黃鳳亭中學

March 2001

Presentation material:

1. VHS videotape (7 minutes video with English voice-over)

The

Race

of

Vitamin C 

content

Hi-CVSVita


Acknowledgement

We would like to thank:

Ms. Elic Chan, our Principal, who has shown great concern to our project;

Mr. Yu, the technician, for giving us full support when we are conducting experiments;

Mr. Ting, our chemistry teacher, who not only give us much advice and provide us the resources we need but also let us know how to plan and allocate our time appropriately.  

Abstract

The objective of this project is the determination of the amount of vitamin C in drinks.  The investigation helps us know which brand and which type of fruit drink contains more vitamin C. The result may give an indication to us in choosing the suitable fruit drink for ourselves.

DCPIP is an oxidizing agent which can oxidize Vitamin C (Ascorbic acid). By titrating the selected drinks with standardized DCPIP solution, the amount of the vitamin C content in each drink can be determined.

         The Vitamin C content of five types of fruit juice of two brands, Hi-C and Vita, will be analysed. The result will then be compared and interpreted.

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Content

Abstract----------------P.4

Objectives---------------P.6

Experiment-------------P.7

Conclusion--------------P.14

Reference----------------P.15


Objectives

Through this project, we would like to find

  1. the content of the vitamin C in the Vita and Hi-C Corporation of different types of fruit drink;

  1. the comparison of the content of vitamin C of the same type of fruit juice of Vita brand and Hi-C brand;

  1. the Best buy fruit drink which contains relatively large amount of vitamin C with ...

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