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Red cabbage juice is a natural pH indicator that changes color based on the acidity or alkalinity of the solution. In vinegar, which is acidic, the cabbage juice turns red or pink. In baking soda, which is alkaline, the cabbage juice turns blue or green. This color change is due to the interaction between the pigment molecules in the cabbage juice and the different pH levels of the solutions.
You can make a PH indicator solution out of blueberry juice, or you can buy litmus paper or use an indicator solution that you can buy at the store.
A simple recipe for blueberry juice is to take blueberries and some water and place them in a blender to make juice.
www.diychatroom.com/.../how-to-make-blueberry-juice-concentrate_94d89ef6-598a-a016-cb05-3dad28507883/
Blueberry Juice
Totally 5.694e+6 points will be available in 250ml of blueberry juice.
When you mix lemon juice with bromothymol blue (BTB) solution, the color will change from blue to yellow. This is because the acidity of the lemon juice causes the BTB indicator to shift to its yellow color.
.... Because its a BLUE berry. In juice.
I think 60% acid is found in blueberry.
Bougainvillea juice will turn from its original color to pink when mixed with dove solution, due to the presence of anthocyanin pigments in the bougainvillea juice reacting with the alkaline nature of the dove solution.
Because the chef added it to enhance the taste.
Yes it does