The ethanol could be acidified with any non-poisonous acid. Chosen acids are hydrochloric acid, phosphoric acid, and natural acids such as tartaric acid and citric acid. Hydrochloric acid contributes to an extract using a attractive characteristic red colour. There are several studies showing that cocoa shell extracts full of polyphenols https://cocoa-shell18381.buyoutblog.com/34897828/the-single-best-strategy-to-use-for-cocoa-shell-granules