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| | | | | | | | | Looking for Antioxidante Food | |
Looking for Antioxidant Food
| Subject |
Chemistry |
| Level |
Upper secondary |
| Language |
English |
| Type |
Experiments |
Oxidative stress, due to the very reactive molecules
called "free radicals", is connected to many pathologies:
atherosclerosis, myocardial infarction, Alzheimer's disease,
some tumors, senile cataracts. . . These pathologies
are common to the whole of Europe, yet they are less
common in those countries where a diet rich in antioxidant
molecules (flavonoids and carotenes, as a rule) is common:
e.g the "French Paradox". The goal of this project is to
introduce students to a responsible diet aimed at limiting
the before mentioned diseases. A demonstration was set
up, that makes use of the Briggs-Rauscher reaction: an oscillating
reaction where differently coloured radicalic and
non radicalic phases alternate. Measuring time intervals,
students were able to estimate food (mainly fruits and
vegetables) from the radical scavengering point of view.
Contact details
Last update: 17 July 2007 | |
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