Methods for the production of L-threonic acid salts from L-xylonic acid

A method of producing L-threonic acid from L-xylonic acid comprising:

• decarboxylatinq 2-keto-L-gulonic acid (KLG) to L-xylonic acid, decarboxylating the L-xylonic acid to L-threose, and oxidizing the L-threose to L-threonic acid,
• wherein the decarboxylatinq 2-keto-L-gulonic acid (KLG) to L-xylonic acid and the decarboxylatinq L-xylonic acid to L-threose is performed concurrently in an electrochemical cell.