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Effect of plasticizer content on the functional properties of extruded gelatin-based composite films

Beef gelatin, in combination with varying levels of glycerol, was used to manufacture films by extrusion. A twin-screw co-rotating extruder was employed to produce the films and the mechanical and barrier properties of the films were investigated. Increasing the plasticizer content increased (P <...

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Main Authors: Zainal Abedin, Nur Hanani, McNamara, J., Roos, Yrjo H., Kerrry, Joseph P.
Format: Article
Language:English
Published: Elsevier 2013
Online Access:http://psasir.upm.edu.my/id/eprint/30506/1/Effect%20of%20plasticizer%20content%20on%20the%20functional%20properties%20of%20extruded%20gelatin.pdf
http://psasir.upm.edu.my/id/eprint/30506/
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spelling my.upm.eprints.305062015-11-17T01:45:01Z http://psasir.upm.edu.my/id/eprint/30506/ Effect of plasticizer content on the functional properties of extruded gelatin-based composite films Zainal Abedin, Nur Hanani McNamara, J. Roos, Yrjo H. Kerrry, Joseph P. Beef gelatin, in combination with varying levels of glycerol, was used to manufacture films by extrusion. A twin-screw co-rotating extruder was employed to produce the films and the mechanical and barrier properties of the films were investigated. Increasing the plasticizer content increased (P < 0.05) elongation at break (EAB) values but decreased (P < 0.05) tensile strength (TS) values. Oxygen permeability (OP) values for gelatin-based composite films increased (P < 0.05) as the concentration of glycerol increased. Additionally, the solubility of films in water and seal strength increased as glycerol content increased. FTIR results indicated that increasing glycerol concentration increased and displaced the peak situated around 1032 cm−1, which corresponded to glycerol. Gelatin-based composite films with a concentration of 0.2% glycerol possessed the lowest water vapor permeability (WVP) and OP values. From the data generated in this study, it is clear that the use of a plasticizing agent in film formulations should be carefully considered because of the negative effects that the plasticizing agent could have on extruded film barrier properties. Elsevier 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30506/1/Effect%20of%20plasticizer%20content%20on%20the%20functional%20properties%20of%20extruded%20gelatin.pdf Zainal Abedin, Nur Hanani and McNamara, J. and Roos, Yrjo H. and Kerrry, Joseph P. (2013) Effect of plasticizer content on the functional properties of extruded gelatin-based composite films. Food Hydrocolloids, 31 (2). pp. 264-269. ISSN 0268-005X; ESSN: 1873-7137 10.1016/j.foodhyd.2012.10.009
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Beef gelatin, in combination with varying levels of glycerol, was used to manufacture films by extrusion. A twin-screw co-rotating extruder was employed to produce the films and the mechanical and barrier properties of the films were investigated. Increasing the plasticizer content increased (P < 0.05) elongation at break (EAB) values but decreased (P < 0.05) tensile strength (TS) values. Oxygen permeability (OP) values for gelatin-based composite films increased (P < 0.05) as the concentration of glycerol increased. Additionally, the solubility of films in water and seal strength increased as glycerol content increased. FTIR results indicated that increasing glycerol concentration increased and displaced the peak situated around 1032 cm−1, which corresponded to glycerol. Gelatin-based composite films with a concentration of 0.2% glycerol possessed the lowest water vapor permeability (WVP) and OP values. From the data generated in this study, it is clear that the use of a plasticizing agent in film formulations should be carefully considered because of the negative effects that the plasticizing agent could have on extruded film barrier properties.
format Article
author Zainal Abedin, Nur Hanani
McNamara, J.
Roos, Yrjo H.
Kerrry, Joseph P.
spellingShingle Zainal Abedin, Nur Hanani
McNamara, J.
Roos, Yrjo H.
Kerrry, Joseph P.
Effect of plasticizer content on the functional properties of extruded gelatin-based composite films
author_facet Zainal Abedin, Nur Hanani
McNamara, J.
Roos, Yrjo H.
Kerrry, Joseph P.
author_sort Zainal Abedin, Nur Hanani
title Effect of plasticizer content on the functional properties of extruded gelatin-based composite films
title_short Effect of plasticizer content on the functional properties of extruded gelatin-based composite films
title_full Effect of plasticizer content on the functional properties of extruded gelatin-based composite films
title_fullStr Effect of plasticizer content on the functional properties of extruded gelatin-based composite films
title_full_unstemmed Effect of plasticizer content on the functional properties of extruded gelatin-based composite films
title_sort effect of plasticizer content on the functional properties of extruded gelatin-based composite films
publisher Elsevier
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/30506/1/Effect%20of%20plasticizer%20content%20on%20the%20functional%20properties%20of%20extruded%20gelatin.pdf
http://psasir.upm.edu.my/id/eprint/30506/
_version_ 1643830079270158336
score 13.211869

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