[ACast]

I'm hoping to extract anthocyanin pigments from berries. Does anyone have any suggestions on how to go about this? I am also very limed on equipment so please keep that in mind.

Once I successfully extract the pigment, i'm hoping to change it's pH but i'm a bit unsure as to what base or acid to use? I know maybe vinegar is an option. Does anyone have any suggestions for a weak base that I could use to alter the pH of the pigment?

[Arkcon]

We don't know what yield or purity you need, because we don't know your application.  Anthocyanins, and other things, will come out of soft berries with water, or just by crushing berries and filtering.  (We're also left wondering what berries you'll use -- strawberries, blueberries, blackberries?)  If you want to lower the pH at home, white vinegar is a good choice.  If you need a base, household ammonia is probably adequate.