Document Detail


Evolution of selected volatiles in chitosan-coated strawberries ( Fragaria x ananassa ) during refrigerated storage.
MedLine Citation:
PMID:  19191671     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of chitosan coating on the evolution of several volatile compounds relevant to the strawberry ( Fragaria x ananassa cv. Camarosa) aroma profile has been investigated. Strawberries dipped in chitosan acetate solution at 1 or 1.5% (w/w) and uncoated controls were stored at 10 degrees C for 1 week. Significant differences in aroma profile between coated and uncoated samples were observed. Most importantly, the buildup of the off-flavors acetaldehyde and ethanol was largely delayed in coated berries. With regard to the effect of chitosan on ester evolution, the levels of ethyl butanoate and ethyl hexanoate, important contributors to strawberry aroma related to fruity and sweet notes, were found to be enhanced in coated fruit. Acetate esters also increased during storage but more markedly in uncoated strawberries. These results show the potential of chitosan coatings in maintaining strawberry flavor during storage, something difficult to achieve with current conservation technologies. Moreover, differences in results for different coating concentrations are reported.
Authors:
Eva Almenar; Pilar Hernández-Muñoz; Rafael Gavara
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  57     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-02-04     Completed Date:  2009-03-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  974-80     Citation Subset:  IM    
Affiliation:
School of Packaging, Michigan State University, East Lansing, Michigan 48824-1223, USA.
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MeSH Terms
Descriptor/Qualifier:
Acetaldehyde
Alcohols / analysis
Aldehydes / analysis
Chitosan*
Cold Temperature*
Esters / analysis
Fermentation
Food Handling / methods
Food Preservation / methods*
Fragaria / chemistry*
Fruit / chemistry*
Odors / analysis*
Solutions
Chemical
Reg. No./Substance:
0/Alcohols; 0/Aldehydes; 0/Esters; 0/Solutions; 75-07-0/Acetaldehyde; 9012-76-4/Chitosan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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