Document Detail


Changes in the HPLC phenolic profile of virgin olive oil from young trees (Olea europaea L. Cv. Arbequina) grown under different deficit irrigation strategies.
MedLine Citation:
PMID:  12207473     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The HPLC phenolic profile of virgin olive oils obtained from young olive trees (Arbequina cv.) grown under different deficit irrigation strategies was studied. Deficit irrigation (RDI) did not affect all the phenolic compounds in the same way. Lignans, vanillic acid, vanillin, and the unknown phenolic compound named P24 increased in the oils from the most irrigated treatments. The secoiridoid derivatives and the unknown phenolic compound named P19 increased in the oils from the most stressed irrigation treatments. The period of growth where a water stress significantly affects the phenolic profile of oils was between pit hardening and the first stages of fruit growth and oil accumulation, independently of the water applied during the previous period to harvest. The phenolic profile and those parameters related to phenol content, oxidative stability, and the bitter index were significantly affected only in the most severe RDI strategies. Other strategies produced important savings in irrigation requirements and an increase in the water use efficiency without noticeably affecting the phenolic profile.
Authors:
M Paz Romero; M Jesús Tovar; Joan Girona; M José Motilva
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  50     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-09-04     Completed Date:  2002-11-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5349-54     Citation Subset:  IM    
Affiliation:
Food Technology Department, CeRTA-UTPV, Escuela Técnica Superior de Ingeniería Agraria, Universidad de Lleida, Av/Alcalde Rovira Roure 191, 25198 Lleida, Spain.
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MeSH Terms
Descriptor/Qualifier:
Agriculture / methods*
Chromatography, High Pressure Liquid*
Oleaceae / chemistry,  growth & development*
Phenols / analysis*
Plant Oils / chemistry*
Water*
Chemical
Reg. No./Substance:
0/Phenols; 0/Plant Oils; 7732-18-5/Water; 8001-25-0/olive oil

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