Controlled Release of Atractylodes lancea Extract from Rice Starch-Konjac Glucomannan Film

摘要

Rice starch (RS)-konjac glucomannan (KGM) blend films were prepared using different concentrations of RS, KGM and glycerol. Their mechanical properties were determined. All the films exhibited significantly higher values of tensile strength and elongation at break than those of neat starch films. The values varied considerably depending on KG and glycerol content. The Atractylodes lancea extract was embedded into the films and its release characteristics were controlled by changing the initial KG content. This study suggests that the prepared film has a potential use for advanced controlled release of bioactive compounds.