Optical and thermo-mechanical properties of composite films based on fish gelatin/rice flour fabricated by casting technique

Ahmad, Mehraj, Hani, Norziah Mohd, Nirmal, Nilesh Prakash, Fazial, Farah Faiqah, Mohtar, Nor Fazliyana and Romli, Siti Romli (2015) Optical and thermo-mechanical properties of composite films based on fish gelatin/rice flour fabricated by casting technique. Progress in Organic Coatings, 84 115-127. doi:10.1016/j.porgcoat.2015.02.016


Author Ahmad, Mehraj
Hani, Norziah Mohd
Nirmal, Nilesh Prakash
Fazial, Farah Faiqah
Mohtar, Nor Fazliyana
Romli, Siti Romli
Title Optical and thermo-mechanical properties of composite films based on fish gelatin/rice flour fabricated by casting technique
Journal name Progress in Organic Coatings   Check publisher's open access policy
ISSN 0300-9440
1873-331X
Publication date 2015-07-01
Sub-type Article (original research)
DOI 10.1016/j.porgcoat.2015.02.016
Open Access Status Not yet assessed
Volume 84
Start page 115
End page 127
Total pages 13
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2016
Language eng
Formatted abstract
Packaging films based on fish gelatin-rice flour (FG-RF) at different blend ratios (FG-RF ≈ 10:0, 8:2, 6:4, 5:5 and 0:10, w/w) using 30% (w/w) glycerol as plasticiser were prepared and characterised. FG-RF composite films exhibited lower tensile strength (TS) and elongation at break (EAB), compared to FG film (P < 0.05). Higher water vapour permeability (WVP), but lower water solubility (WS) was obtained for FG-RF composite films having the increased proportion of RF (P < 0.05). Light transmission in ultraviolet (UV) and visible regions (200–800 nm) was lowered in all FG-RF composite films, indicating excellent light barrier characteristics. Based on FTIR spectra, significant changes in molecular structure and lower intermolecular interactions between FG and RF molecules were found in FG-RF (8:2) composite film. Thermogravimetric analysis indicated that FG-RF (8:2) composite film had only 7.61% (w/w) heat-stable mass residues in the temperature range of 50–600 °C. DSC thermograms suggested that FG-RF (8:2) composite film consisting of amorphous/microcrystalline layers of partially miscible aggregated junction zones and the coexisting two different order phases of unbound domains. SEM micrographs elucidated that FG-RF (8:2) composite film was rougher than FG film, but no signs of phase separation between film components were observed, thereby confirming their potential use as packaging material.
Keyword Composite films
Fish gelatin
Rice flour
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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