... additives (vitamin C, citric acid, xylitol)Traits: purple-gray powder, blueberry unique aroma, tastes acid after watered, astringent (due to ... meal.2.Blueberry anthocyanins is purple under acidic conditions and blue under alkaline conditions; Dissolution uneven in the process of ... change,which is normal, it will be eliminated until powder is completely dissolved please taking that safely.3.Some places ...