Physicochemical Properties of Films Based on Bovine Gelatin Cross-linked with 1,4-Butanediol Diglycidyl Ether

The effectiveness of 1,4-butanediol diglycidyl ether (BDDGE) as a cross-linking agent of bovine gelatin films plasticized with D-sorbitol intended for food packaging is reported. Free-standing films were produced by casting gelatin film-forming solutions containing D-soritol 30 % (g/100 g dry gelati...

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Bibliographic Details
Published in:Food and bioprocess technology 2015-08, Vol.8 (8), p.1645-1656
Main Authors: Martucci, Josefa F, Espinosa, Juan P, Ruseckaite, Roxana A
Format: Article
Language:English
Subjects:
Agriculture
Aldehydes
Biodegradability
Biodegradation
Biotechnology
Butanediol
cattle
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
cross-linking reagents
Crosslinking
D-Sorbitol
detection limit
Food packaging
Food Science
Gas chromatography
gas chromatography-mass spectrometry
Gelatin
hydrolysis
manufacturing
Mass spectrometry
Mass spectroscopy
Mechanical properties
Original Paper
Packaging materials
Permeability
Physicochemical properties
Solubility
Sorbitol
Tensile strength
water solubility
Water vapor
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Summary:The effectiveness of 1,4-butanediol diglycidyl ether (BDDGE) as a cross-linking agent of bovine gelatin films plasticized with D-sorbitol intended for food packaging is reported. Free-standing films were produced by casting gelatin film-forming solutions containing D-soritol 30 % (g/100 g dry gelatin) and variable amounts of BDDGE (0–3 g/100 g dry gelatin). The addition of 1 % BDDGE (g/100 g dry gelatin) positively influenced the solubility, water vapor permeability, and mechanical properties of the produced films. Water solubility decreased about 77 %; the water vapor permeability enhanced 20 %, and the stretching ability increased 11 times while the tensile strength was reduced up to 7-fold with regard to the non-cross-linked counterpart. A simple extraction procedure was applied to remove the potential un-reacted BDDGE and its hydrolysis products from BDDGE-treated gelatin films. Quantification was performed by gas chromatography combined with mass spectrometry (GC/MS), being lower than 0.25 μg/kg (below the limit of detection, 0.30 μg/L). Results suggested that water-soluble BDDGE may provide an effective cross-linking alternative to the usual aldehyde-based strategy to manufacture gelatin films with potential use as biodegradable food packaging materials.
ISSN:1935-5130
1935-5149
DOI:10.1007/s11947-015-1524-x