Neither one is better than the other. Man-made and natural pH indicators do virtually the same exact thing, just with different materials.
...indicator. (Or, the juice of a cabbage. :) )
You will have made a pH indicator. Just like litmus paper.
price
it is an indicator.
blue
Red cabbage or beetroot juice will do the job.
They are called indicators.
anthocyanin
An artificial indicator is one that is chemically made and you cannot create from Natural Resources e.g. cabbage juice
Red cabbage juice and litmus paper both serve as pH indicators, but they have different advantages. Red cabbage juice is natural, easy to prepare, and can provide a color spectrum for various pH levels. However, litmus paper is more standardized and offers quicker, more precise results for determining acidity or alkalinity. Ultimately, the choice depends on the context and the level of accuracy required.
It is an acid, because Red Cabbage Juice is an indicator, and White Vinegar is an acid.
it turns greenish yellow if it is added to a base