Is High Vitamin C almost all it claims to be?
Today, there is much concern about our intake of foodstuff drink, wish told do not intake the mandatory daily degree of fruit and veg, a large number of manufactures claim to provide excellent levels of nutrition, This test will be carried out to see whether the vitamin c levels believed by producers are actually within the refreshments, this will performed by testing various beverages using green DCPIP solution.
The quantity of supplement C in food and drink can be determined using a straightforward colour evaluation. Vitamin C decolourises the blue color DCPIP (dichlorophenolindolphenol). Vitamin C is a great antioxidant and reduces the DCPIP. DCPIP changes via blue to colourless (or slightly pink) as it becomes reduced.
Is Excessive vitamin C all that claims to be?
Fruits have large levels of supplement C for that reason fruit juice, especially orange will require the least quantity to decolourise DCPIP since Orange drink has the many Vitamin C.
The nature of this experiment can be unlikely to have any ethical issues, the purpose of the results is boost understanding of our diet and nourishment levels.
Independent: The kind of juice.
Dependant: The Ressent C content/volume (cmВі) of DCPIP required for decolourisation.
Variables which may affect the result:
o The beverages were retained in the family fridge, at 4 degrees ВєC, then for room temperatures for 20 mins.
um The Best Ahead of date was unchecked, of course, if old, it may have got caused bacterias to expand and take in the supplement C and also other nutrients.
u Concentration of DCPIP (1%)
o Amount of DCPIP (1cmВі)
The 3rd party variable will probably be controlled therefore the results will be reliable and valid and their impact will probably be minimised inside the experiment. Let me also run a control test out distilled normal water, to show that it must be the Supplement C that is certainly decolourising the DCPIP and nothing else. (Water consists of 0% of Vit C)...