... HACCP,ISO9001 2.100% purple sweet potato 3.high purity,competitive price high-end health care product anthocyanidin powderPurple potato introduction ... nutrition and special health care function, contains around 20% protein, including 18 kinds of amino acids, and is susceptible ... ranging from red to purple, added to ice cream, dairy drinks, cheeses, seafood, fruit juice, jelly, cereal and other foods. ...