TSCA Definition 2019: The substance resulting from treatment of starch in aqueous slurry with an aqueous oxidizing agent such as hydrogen peroxide, sodium hypochlorite, hypochlorous acid, or ammonium persulfate. Under controlled conditions of temperature, pressure, and time, the oxidizing agent reacts with the starch to cleave the polymeric chains and to oxidize the end groups from aldehyde to carboxylic acid groups.