Document Detail

Changes in physicochemical characteristics and volatile constituents of yellow- and white-fleshed nectarines during maturation and artificial ripening.
MedLine Citation:
PMID:  12720396     Owner:  NLM     Status:  MEDLINE    
Changes in the volatile composition during maturation and artificial ripening of yellow-fleshed nectarines were investigated by means of GC-FID and GC-MS over three years (1999-2001). Unripe and commercially ripe fruits were placed in ripening chambers until complete ripening and compared to tree-ripe nectarines. Firmness, weight, soluble solids (SS), titratable acidity (TA), SS/TA ratio, organic acids, and sugars were also determined. Furthermore, the tree-ripe and artificially ripened yellow-fleshed nectarines were subjected to sensory analysis by a taste panel. In 2001, a similar experiment on white-fleshed nectarines (cv. Vermeil) was performed to compare with the results obtained on yellow-fleshed nectarines. Levels of volatiles compounds, in particular, lactones and C(13) norisoprenoids, were found to be the same or higher in the artificially ripened nectarines compared with the tree-ripe nectarines. In addition, no significant difference was observed for sweetness, sourness, and the intensities of "peach odors" or "peach aroma" in the sensory analysis between the tree-ripe samples and the artificially ripened nectarines. However, in the latter the levels of SS and the SS/TA ratio were very close to those observed in the initial unripe samples and significantly lower than those observed in tree-ripe nectarines.
Christophe Aubert; Ziya Günata; Christian Ambid; Raymond Baumes
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  51     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-04-30     Completed Date:  2003-06-16     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3083-91     Citation Subset:  IM    
Centre technique interprofessionnel des fruits et légumes, route de Mollégès, 13210 Saint-Rémy-de-Provence, France.
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MeSH Terms
Aldehydes / analysis
Chemistry, Physical
Fruit / chemistry*,  growth & development*
Gas Chromatography-Mass Spectrometry
Lactones / analysis
Odors / analysis*
Physicochemical Phenomena
Prunus / chemistry*,  growth & development*
Reg. No./Substance:
0/Aldehydes; 0/Lactones; 505-57-7/2-hexenal

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