PENGARUH KONSENTRASI GLISEROL DAN TAPIOKA TERHADAP KARAKTERISTIK BIODEGRADABLE FILM BERBASIS AMPAS RUMPUT LAUT EUCHEUMA COTTONII
ABSTRACT: This research was
aimed to find the appropriate combination of glycerol and tapioca concentration
in the production of Eucheuma cottonii seaweed dreg-based biodegradable
films. A two factors experiment was
arranged in a Complete Randomized Design with three replications. The first factor was three levels of glycerol
concentration : 0.25%; 0.5% and 0.75%.
The second factor was three levels of tapioca concentration: 5%; 6% and
7%. The data of visual observation,
Fourier transform infra red analysis,
biodegradability and water vapor permeability were analyzed descriptively. The tensile strength, elongation and
solubility of biodegradable films were analyzed using by ANOVA. The homogenity was use barlett test and the
aditivity was use Tukey test. The data
were continue by HSD test at 5% level of significant. The concentration of glycerol and tapioca
significant effects on tensile strength and percent elongation, but not on
solubility. The best characteristics of
the Eucheuma cottonii seaweed dreg-based biodegradable film was produced from a
combination of 0.25% of glycerol and 7%
of tapioca concentration. The best biodegradabe film had characteristic of an f 53.92 MPa tensile strength, an 3.647 % elongation,
86.17% solubility, 14 day biodegradability, 6.13 g/(m2/day) water vapor
permeability . The addition of glycerol
and tapioca concentration in producting of Eucheuma cottonii seaweed dreg-based
biodegradable film has caused the film characteristics more plastic and
homogeneous.
Keywords: Biodegradable film, Fourier transform infra
red, percent elongation, seaweed dreg, tensile strength, water vapor
permeability
Penulis: Zulferiyenni,
Marniza, Erli Novida Sari
Kode Jurnal: jppertaniandd140114
