THICK-THIN RETORT STARCH.

摘要

The thick-thin retort starch is an oxidized, hydroxy alkylated starch. The base starch is either a waxy or a root starch. The degree of substitution is up to 0.93 and the etherification agent is ethylene oxide or propylene oxide. The oxidation step is conducted after the etherification. Oxidation is accomplished with sodium or calcium hypochlorite at a pH of 4 to 5. A non-substituted, oxidized waxy or root starch also has thick-thin properties.