Jurnal Bahan Alam Terbarukan
Vol 4, No 2 (2015): December 2015

KARAKTERISASI EDIBLE FILM BERBAHAN DASAR EKSTRAK KARAGENAN DARI RUMPUT LAUT (Eucheuma cottonii)

Fardhyanti, Dewi Selvia ( Semarang State University)
Julianur, Syara Sofia ( Semarang State University)



Article Info

Publish Date
25 Jan 2016

Abstract

Extraction process of carrageenan doing at 2 hours with temperature 80-90°C using sodium hidroxide with variant consentration of sodium hydroxide is 0,55N; 0,75N; 0,95N; 1,2N; 1,4N. The edible film makes with raw material carrageenan with 2 blended material is carrageenan composite with beeswax and the plasticizer sorbitol, along carrageenan with plasticizer sorbitol. The optimal yield from extraction process of carrageenan ressult at consentration of sodium hydroxide 1,2 N with value 43,42%. Optimal sulphate content get ressult at consentration of sodium hydroxide 0,45 N with value 10,28%. Optimal water content get ressult at consentration of sodium hydroxide 0,9 N with value 8,47%. Identification from FTIR to showing group of ester sulphate at spectrum 1227,67 cm-1. The identification chains of glicoxide at spectrum 1067,17 cm-1, the identification of group function 3,6 anhydrogalactose at spectrum 931,04 cm-1, and for group function galactose 4-sulphate can identification kind of kappa-carrageenan at spectrum 848,19 cm-1. Result of this ressearch showing the edible film makes with from blanded carrageenan composite and beeswax has best characteristic is high tensile strength with value 1,0755 MPa, percent elongation with 257,738% and miscible with value 15,45%.

Copyrights © 2015






Journal Info

Abbrev

jbat

Publisher

Subject

Materials Science & Nanotechnology

Description

This journal presents articles and information on research, development and applications in biomass conversion processes (thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion) and equipment to produce fuels, power, heat, and value-added chemicals from biomass. A ...