Effect of natural active compound addition on mechanical and functional properties of canna starch based edible film

Abstract

This research objective was to determine the additional effect of biopolymer materials of red palm oil and miserly leave extract on mechanical and functional characteristics of canna starch based edible film. The method used in this research was factorial randomized block design with two treatment factors consisting of red palm oil (0.5; 1.0; and 1.5%v/v) and miserly leave extract (1.0; 2.0; and 3.0%v/v). Research results showed that edible film had thickness of 0.18 to 0.24 mm, elongation percentage of 16.7 to 19.00%, compressive strength of 33.87 to 48.40 gf, water vapour transmission rate of 11.97 to 44.32 g.m(-2).d(-1), total phenol of 389.31 to 488.45ppm, antioxidant activity of 389.31 to 488.45 ppm and inhibition zone diameters of 0.1 to 0.73 mm, respectively. The concentration increase of red palm oil had increased the thickness, compressive strength, total phenol, antioxidant and antibacterial activity of the edible film, but the percent elongation and the rate of water vapor transmission had decreased. Water vapor transmission rate, compressive strength, total phenol, antioxidant and antibacterial activity had increased with the increase in miserly leave extract concentration. The best edible film formula was red palm oil with a concentration of 1.5%(v/v) and 1%(v/v) miserly leave extract (A(3)B(1)).