Affiliations 

  • 1 Food Biopolymer Research Group, Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Minden, 11800, Penang, Malaysia
  • 2 Food Biopolymer Research Group, Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Minden, 11800, Penang, Malaysia. Electronic address: fazilah@usm.my
  • 3 School of Food Industry, Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin UNISZA, 22200 Besut Campus, Terengganu Darul Iman, Malaysia
  • 4 Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Iran
Int J Biol Macromol, 2018 Apr 01;109:855-862.
PMID: 29133087 DOI: 10.1016/j.ijbiomac.2017.11.051

Abstract

Edible duck feet gelatin (DFG)-based biocomposites with different glycerol (GLY) contents (15%, 25%, and 35% of dried DFG) were prepared. Physicochemical, mechanical, barrier, and heat seal properties of DFG films were characterized and compared as an alternative to bovine gelatin film. Increasing glycerol from 15 to 35% decreased the TS and YM and EB and HS increased, in value of 42.54-7.27 and 1240-157.10MPa and 22.82-50.33% and 42.06-347.15N/m respectively. The water vapor permeability (WVP) and oxygen permeability (OP) of films were increased from 4.78 to 5.6×10-11gm-1Pa-1s-1 and from 3.97 to 33.99cm3mμ/m2 d kPa respectively. GAB model estimations showed monolayer water content of films increased with the increase of plasticizer content. Moisture sorption isotherm modelling exhibited a type II BET classification. Fourier transform infrared (FTIR) spectra showed shifted peak at approximately 1024cm-1, which was related to glycerol. The results show that the properties of DFG film are suitable for use as an alternative material to bovine gelatin film.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.