Volume of antioxidants in 3 green tea trials
Aim: To compare the number of antioxidants in three green tea supplement samples and hence recommend your own brand of green tea herb bag contains a higher antioxidants content to the general public.
Trouble to investigate: Quantity of anti-oxidants in three green tea trials Hypothesis: It's the antioxidants like catechins, a type of flavonoids, within the green tea to trigger the DCPIP solution to alter from blue to colourless. Conjecture: The DCPIP solution is usually predicted to change from blue to colourless when green tea supplement sample is definitely added. Intended for green tea sample with a higher antioxidants articles, it is believed that fewer amount of green tea test is needed to trigger the colour modify of DCPIP solution. Principles: Green tea is the foremost food method to obtain a group of antioxidants flavonoids referred to as catechins. In test pontoons, catechins are definitely more powerful than vitamin C and Elizabeth in halting oxidative harm to cells. **DCPIP, dichlorophenol indophenol solution, is employed in a foodstuff test to evaluate for presence of vitamin C and also other antioxidants just like catechins inside the green tea sample. ** |Independent variables |Dependent variables |Controlled variables |**Control | |brand of green tea herb sample |volume of green tea herb sample used to |volume of DCPIP solutions |titrate hot water with DCPIP | | |reach the endpoint of titration of |time to brew the tea tote sample |solution. | | |DCPIP option and green tea herb sample |mass of tea bag sample | | | | |volume of water to brew the tea tote | | | |...