Charactheristic of Lindur Fruit Starch and the Application as Edible Film
Bruguiera gymnorhiza fruit has potential as raw material for edible film production, because its<br />availability in nature is quite abundant and has a quite high amylose and amylopectin content (31.56% and<br />26.17%, respectively). The purpose of this study were to determined the physic and chemical characters<br />of B. gymnorrhiza fruit starch and to determined the physic characters of edible film added by glycerol as<br />plasticizer and biopolymers (carrageenan and pectin). The edible film production was conducted by using<br />commercial starch of B. gymnorrhiza fruit and B. gymnorrhiza fruit starch from North Halmahera. The<br />first stage of this study was characterized of lindur starch by microscopic and chemical composition. The<br />second stage is preparation of edible film contained by 4% starch, 0.4%, 0.5%, 0.6% carrageenan, 0.4%, 0.5%,<br />0.6% pectin, 1% glycerol, subsequently the edible film was characterized by microscopic and mechanic<br />properties. The results showed that the thickness value of edible film ranged between 0.11–0.125 mm, the<br />tensile strength value around 1.469-3.132 Kgf/cm2, percent of elongation around 8.38-19.6%, and water<br />vapor transmission rate ranged around 0.0145–0.01775 g/s.m2.<br /><br />