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Title

Isolation and characterization of a secoiridoid derivative from two-phase olive waste (alperujo)

AuthorsRubio Senent, Fátima ; Martos, Sergio; García Borrego, Aránzazu ; Fernández-Bolaños Guzmán, José María; Rodríguez-Gutiérrez, Guillermo ; Fernández-Bolaños Guzmán, Juan
KeywordsAlperujo
Glutaric acid derivatives
Ethyl acetate extract
Elenolic acid
Antimicrobial activity
Issue Date2015
PublisherAmerican Chemical Society
CitationJournal of agricultural and food chemistry 63: 1151- 1159 (2015)
Abstract© 2015 American Chemical Society. A secoiridoid derivative was isolated from the ethyl acetate extract of two-phase olive waste (alperujo). The structure of this compound was fully characterized as s-trans-(E)-3-(1-oxobut-2-en-2-yl)glutaric acid. The spectroscopic data, including one- and two-dimensional nuclear magnetic resonance, mass spectrometry, infrared analysis, and ultraviolet spectrum, were showed. The origin of this compound has not been previously studied, although it most likely results from the breakdown of the oleuropein (or ligstroside) secoiridoid skeleton via oxidation and decarboxylation of the dialdehydic form of elenolic acid, with this transformation being enhanced by extraction of phenolics with ethyl acetate. In addition, the bactericidal activity of (E)-3-(1-oxobut-2-en-2-yl)glutaric acid and extracts containing it was evaluated against two phytopatoghenic microorganisms Pseudomonas syringae and Agrobacterium tumefaciens.
URIhttp://hdl.handle.net/10261/116565
DOI10.1021/jf5057716
Identifiersdoi: 10.1021/jf5057716
issn: 1520-5118
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