Development of purple sweet potato starch base biodegradable film

An antioxidant edible film based on purple sweet potato (psp) starch plasticized with glycerol and incorporated with antioxidant sources (anthocyanin and butylated hydroxy anisole (bha) has been developed. psp consists of high anthocyanin content due to its bright purple color. the anthocyanin believes to become a carrier for antioxidant agent and also act as a natural colorant in food meanwhile bha were a synthetic antioxidant additives which mainly used in food. psp film was prepared by casting method. psp starch blending with anthocyanin extract (89.04 ± 1.70 %) shows higher dpph scavenging activity compared to sweet potato (sp) starch blending with bha solution (74.83 ± 1.73 %). psp with anthocyanin extract is more effective as antioxidant edible film due to higher antioxidant activity compare to mixture of sp with bha. © 2015 penerbit utm press. all rights reserved.