TREATMENT OF AMINO ACID

摘要

PURPOSE:To obtain an amino acid containing decreased amounts of dichloropropanol and monochloropropanol by contacting an amino acid with carbon dioxide of a specific state. CONSTITUTION:An amino acid, for example an amino acid seasoning liquid prepared by hydrolyzing an animal or vegetable protein raw material with an acid, neutralizing with an alkaline agent and removing sediments, is made to contact with carbon dioxide of liquid or super-critical state. The contents of dichloropropanol and monochloropropanol existing in amino acid and suspected to cause food sanitation problem can be remarkably decreased by the treatment with carbon dioxide of the above state.