Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 64, Issue 2, Pages 1042-1046Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2015.07.006
Keywords
Myofibrillar protein film; Phenolic compound; Film properties; Phenol-protein crosslinking
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Myofibrillar protein-based films incorporated with grape seed procyanidins (GSPC) and green tea polyphenol (GTP) were prepared and characterized in terms of physical, mechanical, water barrier and thermal properties. Incorporation of GSPC and GTP markedly decreased water solubility, water vapor permeability and elongation at break, whereas increased tensile strength as well as moisture content. Thermal properties of incorporated films were also improved as evidenced by the higher shift of degradation temperature. Loss in protein solubility and decrease in protein pattern suggested the formation of covalent-crosslinking between phenol and protein molecules. Furthermore, GSPC had a slight greater impact on film properties due to its larger molecule size. (C) 2015 Elsevier Ltd. All rights reserved.
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