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Vitamin C content of commercial orange juices: an analytical project

Haddad, PR 1977 , 'Vitamin C content of commercial orange juices: an analytical project' , Journal of Chemical Education, vol. 54, no. 3 , pp. 192-193 .

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It has become customary at this University for the first year,
nonchemistry major students, to conduct a survey involving
the analysis of a consumer item and to perform a detailed
statistical evaluation of the results.
The project for 1975 occupied four 3 l/2-hr laboratory sessions
and involved a study of the magnitude and stability of
the ascorbic acid content of commercial orange juices. This
study had two aims: firstly to confirm that newly purchased
juice contained sufficient ascorbic acid to meet government
standards (at present 40 mg/100 ml of juice), and secondly to
establish the rate of aerial oxidation of this ascorbic acid when
the juice was stored in a refrigerator. Students were interested
in ascertaining if the juice represented a·suitable source of
Vitamin C after one or two weeks of storage.

Item Type: Article
Authors/Creators:Haddad, PR
Journal or Publication Title: Journal of Chemical Education
ISSN: 0021-9584
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