Parameters Sample code Starch (%) Saponins (%) Thickness of the film(mm) Control1 100 0 0.02 Sf1 98 2 0.02 Sf2 96 4 0.02 Sf3 94 6 0.02 Sf4 92 8 0.02 Sf5 90 10 0.02 Control2 100 0 0.04 Sf6 98 2 0.04 Sf7 96 4 0.04 Sf8 96 6 0.04 Sf9 92 8 0.04 Sf10 90 10 0.04

Table 1: Mixing ratio of starch and saponins.