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Irrigation effects on quality, phenolic composition, and selected volatiles of virgin olive oils cv. Leccino.
J Agric Food Chem. 2007 Aug 08; 55(16):6609-18.JA

Abstract

Field-grown olive trees (Olea europaea L. cv. Leccino) were used over two growing seasons to determine the effect of deficit irrigation regimes on virgin olive oil (VOO) quality. Drip irrigation was managed to maintain a predawn leaf water potential (PLWP): (a) higher than -1.1 MPa (full irrigation: FI); (b) between -1.0 and -3.3 MPa (deficit irrigation: DI); (c) higher than -4.2 MPa (severe deficit irrigation: SI). The fruit yield and oil yield of DI trees were over 90% of those of FI treatments in both years, respectively, whereas yields of SI trees ranged from 61 to 76%. The irrigation regime had minor effects on the free acidity, peroxide value, and fatty acid composition of VOO. The concentrations of phenols and o-diphenols in VOO were negatively correlated with PLWP. The concentrations of the dialdehydic form of decarboxymethyl elenolic acid linked to (3,4-dihydroxyphenyl)ethanol (3,4-DHPEA-EDA), the isomer of the oleuropein aglycon (3,4-DHPEA-EA), and the dialdehydic form of decarboxymethyl elenolic acid linked to (p-hydroxyphenyl)ethanol (p-HPEA-EDA) were lower in FI than in SI treatments. The concentrations of lignans (+)-1-acetoxipinoresinol and (+)-1-pinoresinol were unaffected by the irrigation regime. The tree water status had a marked effect on the concentration of volatile compounds, such as the C(6)-saturated and unsaturated aldehydes, alcohols, and esters.

Authors+Show Affiliations

Servili M
Dipartimento di Scienze Economico-Estimative e degli Alimenti, Sezione di Tecnologie e Biotecnologie degli Alimenti, Università degli Studi di Perugia, Via S. Costanzo, 06126 Perugia, Italy. servimau@unipg.it
Esposto S
No affiliation info available
Lodolini E
No affiliation info available
Selvaggini R
No affiliation info available
Taticchi A
No affiliation info available
Urbani S
No affiliation info available
Montedoro G
No affiliation info available
Serravalle M
No affiliation info available
Gucci R
No affiliation info available

MeSH

AgricultureFatty AcidsHumansOleaOlive OilPhenolsPlant OilsSensationVolatilizationWater

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17636938

Citation

Servili, Maurizio, et al. "Irrigation Effects On Quality, Phenolic Composition, and Selected Volatiles of Virgin Olive Oils Cv. Leccino." Journal of Agricultural and Food Chemistry, vol. 55, no. 16, 2007, pp. 6609-18.
Servili M, Esposto S, Lodolini E, et al. Irrigation effects on quality, phenolic composition, and selected volatiles of virgin olive oils cv. Leccino. J Agric Food Chem. 2007;55(16):6609-18.
Servili, M., Esposto, S., Lodolini, E., Selvaggini, R., Taticchi, A., Urbani, S., Montedoro, G., Serravalle, M., & Gucci, R. (2007). Irrigation effects on quality, phenolic composition, and selected volatiles of virgin olive oils cv. Leccino. Journal of Agricultural and Food Chemistry, 55(16), 6609-18.
Servili M, et al. Irrigation Effects On Quality, Phenolic Composition, and Selected Volatiles of Virgin Olive Oils Cv. Leccino. J Agric Food Chem. 2007 Aug 8;55(16):6609-18. PubMed PMID: 17636938.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Irrigation effects on quality, phenolic composition, and selected volatiles of virgin olive oils cv. Leccino. AU - Servili,Maurizio, AU - Esposto,Sonia, AU - Lodolini,Enrico, AU - Selvaggini,Roberto, AU - Taticchi,Agnese, AU - Urbani,Stefania, AU - Montedoro,Gianfrancesco, AU - Serravalle,Matteo, AU - Gucci,Riccardo, Y1 - 2007/07/18/ PY - 2007/7/20/pubmed PY - 2007/10/20/medline PY - 2007/7/20/entrez SP - 6609 EP - 18 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 55 IS - 16 N2 - Field-grown olive trees (Olea europaea L. cv. Leccino) were used over two growing seasons to determine the effect of deficit irrigation regimes on virgin olive oil (VOO) quality. Drip irrigation was managed to maintain a predawn leaf water potential (PLWP): (a) higher than -1.1 MPa (full irrigation: FI); (b) between -1.0 and -3.3 MPa (deficit irrigation: DI); (c) higher than -4.2 MPa (severe deficit irrigation: SI). The fruit yield and oil yield of DI trees were over 90% of those of FI treatments in both years, respectively, whereas yields of SI trees ranged from 61 to 76%. The irrigation regime had minor effects on the free acidity, peroxide value, and fatty acid composition of VOO. The concentrations of phenols and o-diphenols in VOO were negatively correlated with PLWP. The concentrations of the dialdehydic form of decarboxymethyl elenolic acid linked to (3,4-dihydroxyphenyl)ethanol (3,4-DHPEA-EDA), the isomer of the oleuropein aglycon (3,4-DHPEA-EA), and the dialdehydic form of decarboxymethyl elenolic acid linked to (p-hydroxyphenyl)ethanol (p-HPEA-EDA) were lower in FI than in SI treatments. The concentrations of lignans (+)-1-acetoxipinoresinol and (+)-1-pinoresinol were unaffected by the irrigation regime. The tree water status had a marked effect on the concentration of volatile compounds, such as the C(6)-saturated and unsaturated aldehydes, alcohols, and esters. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/17636938/Irrigation_effects_on_quality_phenolic_composition_and_selected_volatiles_of_virgin_olive_oils_cv__Leccino_ L2 - https://doi.org/10.1021/jf070599n DB - PRIME DP - Unbound Medicine ER -