Document Detail


Improving the Antioxidant Protection of Packaged Food by Incorporating Natural Flavonoids into Ethylene-Vinyl Alcohol Copolymer (EVOH) Films.
MedLine Citation:
PMID:  20879767     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Ethylene-vinyl alcohol copolymer (EVOH) films containing catechin or quercetin as antioxidant agents were successfully produced by extrusion. The addition of these bioactive compounds did not modify greatly their water and oxygen permeabilities, Tg, or crystallinity but improved their thermal resistance. Exposure of the films to different food simulants showed that both compounds were released, although the extent and kinetics of release were dependent on the type of food. In aqueous and alcoholic food simulants their release was greater in the case of the catechin-containing samples. Exposure of the films to isooctane and ethanol 95% (fatty food simulants) provided controversial results; no release was observed in isooctane, whereas both bioactive compounds were extracted by ethanol due to their high solubility in alcohol and the plasticizing effect of ethanol on the polymer. Packaging applications of these films can improve food stability and provide a method for adding such bioactive compounds.
Authors:
Carol López-de-Dicastillo; José M Alonso; Ramón Catalá; Rafael Gavara; Pilar Hernández-Muñoz
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Publication Detail:
Type:  Journal Article     Date:  2010-09-29
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  58     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2014-02-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  10958-64     Citation Subset:  IM    
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