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Development of biopolymer-based gelatin and casein films incorporating brown seaweed Ascophyllum nodosum extract

Paper ID Volume ID Publish Year Pages File Format Full-Text
19802 43130 2015 7 PDF Available
Title
Development of biopolymer-based gelatin and casein films incorporating brown seaweed Ascophyllum nodosum extract
Abstract

•A. nodosum extract used for preparation of gelatin and casein bio-films.•Physico-chemical characterization of films was done to investigate the level of incorporation of seaweed extract.•Bioactive properties of films demonstrate suitability for food packaging applications.

Brown seaweed Ascophyllum nodosum is a rich source of phenolic compounds with antioxidant and antimicrobial properties. The aim of this work was to investigate the effect of incorporation of A. nodosum extract on the physico-chemical and antioxidant properties of gelatin and sodium caseinate films. Gelatin and sodium caseinate films were casted with incorporation of A. nodosum extract at 25 and 50% (w/w of base material) with glycerol added as a plasticizer. The total phenolic content and antioxidant activity of the films increased at higher levels of seaweed extract incorporation. Film properties including thickness, color and light transparency were evaluated. Film appearance was slightly modified and film microstructure analysis highlighted rough surfaces with incorporation of seaweed extract. Hydrophilicity and glass transition temperature of the films also increased at higher levels of seaweed extract. This study demonstrates that seaweed extract can be incorporated in gelatin and casein films as an active ingredient for the development of biofunctional films.

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Keywords
Ascophyllum nodosum; Ultrasound; Seaweed extract; Caseinate film; Gelatin film; Antioxidant
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Development of biopolymer-based gelatin and casein films incorporating brown seaweed Ascophyllum nodosum extract
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food Packaging and Shelf Life - Volume 6, December 2015, Pages 68–74
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us