Pembuatan Biofilm Berbahan Dasar Polisakarida dari Karaginan dan Tepung Tapioka

Abstract

Carrageenan is a hydrocolloid extracted from Eucheuma cottonii seaweed which is a polysaccharide. Carrageenan with tapioca flour and glycerol can produce biofilm. Biofilm is an environmentally friendly material potencial as a food packaging material. The aims of this research ware to produce a biofilm from carrageenan and tapioca flour and to assess the tensile strength and elongation values as well as the water vapor permeability property. The concentration of flour added were 1, 2.5, 5, and 10% (w/v). Film with 10% concentration of flour had the highest tensile strength and elongation values compared with the other films, which were 1024 MPa and 38.4%. The lowest water vapor permeability was showed by film with 1% concentration of flour that was (ng m/ s m2 Pa). The presence of carrageenan in this film was showed by the infrared absorption in 925.83 cm-1 wavenumber which is characteristic of 3,6-anhydro-D-galactose functional group in carrageenan