The ethanol can be acidified with any non-poisonous acid. Preferred acids are hydrochloric acid, phosphoric acid, and organic acids which include tartaric acid and citric acid. Hydrochloric acid contributes to an extract having a appealing attribute purple colour. Methanol and acetone CBS fractions of ethanolic extract (full of epicatechin and https://gregorymyktw.blog5star.com/35828756/not-known-factual-statements-about-cocoa-shell