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- Title
Properties and Characteristics of Multi-Layered Films from Tilapia Skin Gelatin and Poly(Lactic Acid).
- Authors
Nagarajan, Muralidharan; Prodpran, Thummanoon; Benjakul, Soottawat; Songtipya, Ponusa
- Abstract
Multi-layered films based on tilapia skin gelatin and poly(lactic acid) (PLA) were characterized, in comparison with the control gelatin and PLA films. Three different layers of multi-layered films (PLA/Gelatin/PLA) were visualized by scanning electron microscopic (SEM) analysis. The synergetic effect of lamination was evidenced by the increased mechanical properties ( P < 0.05). Multi-layered films had higher water vapor barrier property and water resistance, compared to control gelatin film ( P < 0.05). Gelatin films showed increased lightness ( L*) with coincidental decrease in total color difference ( ∆E*) in the presence of PLA layers ( P < 0.05). Transparency and solubility of films decreased with increasing ratio of PLA ( P < 0.05). In addition, multi-layered films showed the enhanced hydrophobicity and thermal stability as evidenced by increased water contact angle and degradation temperature, respectively. Thus, PLA/Gelatin/PLA multi-layered film with improved water vapour barrier property could serve as bio-degradable packaging material for wider applications.
- Subjects
TILAPIA; FISH skin; POLYLACTIC acid; SCANNING electron microscopy; GELATIN; THERMAL stability
- Publication
Food Biophysics, 2017, Vol 12, Issue 2, p222
- ISSN
1557-1858
- Publication type
Article
- DOI
10.1007/s11483-017-9478-3