Edible Film Komposit Pati TapiokaAgar Kertas Terplastisasi Gliserol dan Limonena

Abstract

Edible film is a food packaging material which can be consumed directly. The objective of this research is to composite edible film with tapioca starch, agar and plasticizers, namely glycerol and limonene. Edible film was made in 2 conditions, by adding fixed agar constituent (10%w/w) and fixed glycerol constituent (10%w/w), while other parameters were varied. Thermal analysis, specific gravity, tensile strength, water vapor permeability, and morphology of edible film were analyzed as it was applied for strawberry packaging. The addition of agar increased the specific gravity and tensile strength of edible film but percentage of elongation and water vapor permeability decreased. The composition of agar:glycerol:limonene (10:5:5) (%w/w) showed high tensile strength and specific gravity but low water vapor permeability. Thermal analysis showed decreasing of melting point was occurred when the concentration of limonene was increased. In addition, single melting point peak showed edible film was homogenous, this result was supported with morphology analysis. Edible film which was made of agar:glycerol:limonene (10:5:5) (%w/w) composition resulted in the longer shelf-life of strawberry for 3 days