Document Detail

Variation in the carotenoid composition of the lycopene-rich Brazilian fruit Eugenia uniflora L.
MedLine Citation:
PMID:  18679799     Owner:  NLM     Status:  MEDLINE    
The indigenous pitanga (Eugenia uniflora L.) is now marketed and commercially processed in Brazil. In the present work, the carotenoids of the pitanga fruit from two states and at two stages of ripening, as well as of processed pitanga products (frozen pulp and juice, the brands being designated as A, B and C) commercialized in Campinas, São Paulo, were determined by HPLC. As compared to ripe pitanga from Medianeira, Paraná, those from Campinas had significantly higher (all-E)-lycopene (14.0 vs. 71.1 microg/g), (13Z)-lycopene (1.1 vs. 5.0 microg/g) and (all-E)-gamma-carotene (1.6 vs. 3.8 microg/g) levels. Significant increases in most of the carotenoids occurred from the partially ripe to the ripe fruits, with (all-E)-lycopene doubling its concentration in fruits from both states. Pitanga was found to be one of the richest fruit sources of carotenoids, particularly lycopene, but the processed products had much lower lycopene content. The mean (all-E)-lycopene concentration was 16.6 microg/g for frozen pulp brand A, 23.0 microg/g for bottled juice brand B and 25.6 microg/g for bottled juice brand C. Optimization of processing is therefore needed to guarantee better retention of this important carotenoid.
Ornella M Porcu; Delia B Rodriguez-Amaya
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-05
Journal Detail:
Title:  Plant foods for human nutrition (Dordrecht, Netherlands)     Volume:  63     ISSN:  0921-9668     ISO Abbreviation:  Plant Foods Hum Nutr     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-21     Completed Date:  2009-02-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8803554     Medline TA:  Plant Foods Hum Nutr     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  195-9     Citation Subset:  IM    
Department of Food Science, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
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MeSH Terms
Carotenoids / analysis*
Chromatography, High Pressure Liquid / methods
Eugenia / chemistry*
Food Analysis / methods
Food Handling / methods*
Frozen Foods / analysis
Fruit / chemistry
Reg. No./Substance:
36-88-4/Carotenoids; 502-65-8/lycopene

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