The color is unchanged.
on acids beetroot juice changes to pink or reddish blue
the colour will change
When you put a beetroot in water, the water will start to absorb the color compounds (betacyanins) from the beetroot, causing the water to turn red or pink. This process is called diffusion, where molecules move from an area of high concentration (beetroot) to an area of low concentration (water).
water
Juice from grapes, and usually added sugar, and maybe water.
happens
lime flavored water.
Red cabbage juice is purple before it is added to anything.
It will probably kill it, tomato juice is very acidic.
The water will change it's color and taste.
Apple juice
Grape Juice from Concentrate (Filtered Water, Grape Juice Concentrate), Grape Juice, Maltodextrin (Dietary Fiber), Ascorbic Acid (Vitamin C) - Taken from Welch's 100% Grape Juice (with added fibre)